| ID |
Date |
Author |
Subject |
|
177
|
Thu Jan 27 15:19:18 2022 |
OH, JM | Enabling internet access on the carme-gsi server |
To use both anydesk and firefox on the carme server require an internet connection.
As the server is on the cryring local network an ssh tunnel needs to be opened to the GSI proxy server.
To do this: ssh -L 8080:proxy.gsi.de:8080 carme@atppc025` and leave terminal open and running.
Both anydesk and firefox have been configured to use the proxy localhost:8080
For the carme password ask J. Marsh or C. Bruno |
|
613
|
Mon Jun 10 18:22:47 2024 |
JM | Electron cooler calculations |
Ion beam energy is calculated using Beamcalc (https://web-docs.gsi.de/~lestinsk/beamcalc/electron.php)
Electron current is set to 4.3 mA and can be taken from Grafana
Alpha factor is 50
Ion energy is then adjusted using the cooler voltage
The cooler voltage inserted into BeamCalc is taken from the FC20 voltage divider. However an offset from the space charge correction is required!
This correction is determined experimentally by changing the electron current and finding the cooler voltage which maintains the optimum cooling of the beam.
Attachment 1 shows this plot for 15N1+ at ~0.426 MeV/u
Attachment 2 shows this same plot in comparison with BeamCalc
To obtain the correct energy we need to subtract 2V from the voltage used in BeamCalc
An example is shown in attachment 3
Here to obtain an ion energy of 426.6 keV/u requires a cooler voltage of 246.7 V. But, due to the space charge correction this value should be 244.7 V.
The cooler voltage setpoint should therefore be chosen so that the FC20 voltage divider reads 244.7 V.
The setpoint needs to be ~0.55 V higher than the desired value i.e setpoint of 245.25 V to obtain the required 244.7 V (at least this beamtime it does)
|
| Attachment 1: space-charge-2.png
|
|
| Attachment 2: space-charge-1.png
|
|
| Attachment 3: BeamCalc.png
|
|
|
445
|
Tue Sep 26 10:13:14 2023 |
TD | ELOTECH PID Temperature Controller R4000 manual ( German and English ) |
|
| Attachment 1: BA-Isoheat_R4000-XX-X-000-X-X_DE_V1.03.pdf
|
|
| Attachment 2: R4000-XX-X-000-X-X_EN_V1.30.pdf
|
|
|
260
|
Wed Feb 23 20:06:43 2022 |
TD CN | E141 kinematics |
Assuming DSSSD is 1000um thick we can expect to observe protons for E_lab=11MeV as follows
14N(d,p)15N(gs) E_p=5.4MeV
14N(d,p)15N(5.3) E_p=8.0MeV |
| Attachment 1: E141_kinematics.txt
|
________________________________________________________________________________
Reaction: 14N(2H,1H)15N
A: 14 2 1 15
Z: 7 1 1 7
Mass(amu): 14.003074 2.014102 1.007825 15.000109
Error(keV): 0.001 0.000 0.000 0.001
Origin:
Status:
Q = 8.6087 +/- 0.0000 MeV
________________________________________________________________________________
Enter reaction: 14n(2h,4he)
________________________________________________________________________________
Reaction: 14N(2H,4He)12C
A: 14 2 4 12
Z: 7 1 2 6
Mass(amu): 14.003074 2.014102 4.002603 12.000000
Error(keV): 0.001 0.000 0.000 0.000
Origin:
Status:
Q = 13.5742 +/- 0.0000 MeV
________________________________________________________________________________
Medium: si
density: 2.33000 g/cm**3
Molecule:
1 atom(s) of charge: 14.0 mass: 28.0860 amu
Average ionization potential: 0.172253E-03 MeV
Electron density: 0.699429 *10**24/cm**3
Average charge: 14.0000
Ion: 1h
charge: 1.0 mass: 1.0000 amu
Energy(MeV) dE/dx(MeV/mm) dE/dx(MeV.cm**2/mg) Range(mm) Range(mg/cm**2)
1.00000 41.7638 0.179244 0.168683E-01 3.93032
2.00000 26.4413 0.113482 0.479716E-01 11.1774
3.00000 19.8139 0.850383E-01 0.920942E-01 21.4580
4.00000 16.0296 0.687967E-01 0.148410 34.5796
5.00000 13.5554 0.581779E-01 0.216350 50.4095
6.00000 11.7994 0.506413E-01 0.295737 68.9066
7.00000 10.4828 0.449906E-01 0.385601 89.8451
8.00000 9.69841 0.416241E-01 0.486197 113.284
9.00000 8.85218 0.379922E-01 0.594047 138.413
10.0000 8.15487 0.349994E-01 0.712066 165.911
11.0000 7.56942 0.324868E-01 0.839325 195.563
12.0000 7.07026 0.303445E-01 0.976032 227.415
13.0000 6.63918 0.284943E-01 1.12211 261.451
14.0000 6.26279 0.268789E-01 1.27739 297.632
15.0000 5.93105 0.254552E-01 1.44140 335.846
16.0000 5.63627 0.241900E-01 1.61476 376.239
17.0000 5.37246 0.230577E-01 1.79614 418.501
18.0000 5.13484 0.220380E-01 1.98680 462.925
19.0000 4.91963 0.211143E-01 2.18570 509.269
20.0000 4.72370 0.202734E-01 2.39308 557.587
Medium: si
density: 2.33000 g/cm**3
Molecule:
1 atom(s) of charge: 14.0 mass: 28.0860 amu
Average ionization potential: 0.172253E-03 MeV
Electron density: 0.699429 *10**24/cm**3
Average charge: 14.0000
Ion: 4he
charge: 2.0 mass: 4.0000 amu
Energy(MeV) dE/dx(MeV/mm) dE/dx(MeV.cm**2/mg) Range(mm) Range(mg/cm**2)
1.00000 257.862 1.10670 0.382916E-02 0.892195
2.00000 217.610 0.933946 0.970542E-02 2.26136
3.00000 184.248 0.790762 0.147204E-01 3.42986
4.00000 159.425 0.684229 0.205680E-01 4.79233
5.00000 140.613 0.603489 0.272616E-01 6.35195
6.00000 125.944 0.540534 0.347858E-01 8.10510
7.00000 114.206 0.490155 0.431299E-01 10.0493
8.00000 104.603 0.448940 0.522753E-01 12.1802
9.00000 96.5996 0.414591 0.622123E-01 14.4955
10.0000 89.8241 0.385511 0.729664E-01 17.0012
11.0000 84.0110 0.360562 0.844573E-01 19.6786
12.0000 78.9663 0.338911 0.967262E-01 22.5372
13.0000 74.5447 0.319934 0.109668 25.5527
14.0000 70.6356 0.303157 0.123440 28.7614
15.0000 67.1531 0.288211 0.137756 32.0971
16.0000 64.0297 0.274806 0.152904 35.6267
17.0000 61.2114 0.262710 0.168794 39.3289
18.0000 58.6547 0.251737 0.185593 43.2431
19.0000 56.3239 0.241733 0.202664 47.2208
20.0000 54.1897 0.232574 0.220839 51.4555
______________________________________________________________________________________________________________________________
Reaction: 14N(2H,2H)14N
A: 14 2 2 14
Z: 7 1 1 7
Mass(amu): 14.003074 2.014102 2.014102 14.003074
Error(keV): 0.001 0.000 0.000 0.001
Origin:
Status:
Q(gs): 0.0000 +/- 0.0001 MeV
Projectile lab energy: 11.000 MeV
CM energy: 9.614 MeV
Excitation energy: 0.000 MeV
Reaction Q-value: 0.000 MeV
Reaction threshold: 0.000 MeV
Particle 3 Particle 4 Non-relativistic Jacobians
( scattered/ejectile ) ( recoil ) Ejectile Ejectile
Ejectile Recoil dOmega/ dOmega/
Lab CM Lab Lab Lab dOmega Lab CM Lab Lab Lab dOmega dOmega dOmega Recoil Recoil
Angle Angle Energy Beta ToF Lab/CM Angle Angle Energy Beta ToF Lab/CM Lab/CM Lab/CM dOmega dOmega
(deg) (deg) (MeV) (ns/cm) ratio (deg) (deg) (MeV) (ns/cm) ratio Lab/Lab CM/Lab
0.00 0.00 11.000 0.1078 0.309 0.0000 NaN 180.00 0.000 NaN NaN NaN 0.0000 NaN NaN NaN
10.00 11.44 10.952 0.1076 0.310 0.7665 84.28 168.56 0.048 0.0027 12.281 2.5089 0.7665 2.5084 0.3056 0.3987
20.00 22.83 10.810 0.1069 0.312 0.7758 78.58 157.17 0.190 0.0054 6.183 1.2631 0.7758 1.2628 0.6144 0.7919
30.00 34.14 10.582 0.1058 0.315 0.7915 72.93 145.86 0.418 0.0080 4.169 0.8516 0.7915 0.8515 0.9295 1.1744
40.00 45.33 10.281 0.1043 0.320 0.8134 67.33 134.67 0.719 0.0105 3.176 0.6488 0.8134 0.6487 1.2539 1.5416
50.00 56.36 9.920 0.1024 0.326 0.8416 61.82 123.64 1.080 0.0129 2.592 0.5294 0.8415 0.5294 1.5897 1.8891
60.00 67.19 9.517 0.1003 0.332 0.8758 56.40 112.81 1.483 0.0151 2.212 0.4518 0.8757 0.4518 1.9384 2.2135
70.00 77.80 9.089 0.0981 0.340 0.9158 51.10 102.20 1.911 0.0171 1.949 0.3981 0.9157 0.3980 2.3005 2.5123
80.00 88.18 8.654 0.0957 0.348 0.9610 45.91 91.82 2.346 0.0190 1.759 0.3593 0.9609 0.3593 2.6748 2.7835
90.00 98.31 8.228 0.0933 0.357 1.0107 40.84 81.69 2.772 0.0206 1.618 0.3305 1.0106 0.3304 3.0584 3.0263
100.00 108.18 7.822 0.0910 0.366 1.0636 35.91 71.82 3.178 0.0221 1.511 0.3086 1.0635 0.3086 3.4459 3.2402
110.00 117.80 7.448 0.0888 0.375 1.1181 31.10 62.20 3.552 0.0233 1.430 0.2919 1.1181 0.2919 3.8300 3.4256
120.00 127.18 7.113 0.0868 0.384 1.1724 26.41 52.82 3.887 0.0244 1.367 0.2791 1.1724 0.2791 4.2008 3.5832
130.00 136.35 6.825 0.0851 0.392 1.2242 21.82 43.65 4.175 0.0253 1.319 0.2693 1.2242 0.2693 4.5465 3.7140
140.00 145.33 6.585 0.0836 0.399 1.2711 17.34 34.67 4.415 0.0260 1.282 0.2619 1.2711 0.2619 4.8542 3.8189
150.00 154.14 6.398 0.0824 0.405 1.3107 12.93 25.86 4.602 0.0266 1.256 0.2565 1.3107 0.2565 5.1107 3.8993
160.00 162.83 6.263 0.0815 0.409 1.3408 8.58 17.17 4.737 0.0269 1.238 0.2528 1.3408 0.2528 5.3039 3.9559
170.00 171.44 6.182 0.0810 0.412 1.3596 4.28 8.56 4.818 0.0272 1.228 0.2507 1.3596 0.2507 5.4241 3.9896
180.00 180.00 6.155 0.0808 0.413 0.0000 0.00 0.00 4.845 0.0272 1.224 0.0000 0.0000 0.0000 5.4649 *******
______________________________________________________________________________________________________________________________
Reaction: 14N(2H,2H)14N
A: 14 2 2 14
Z: 7 1 1 7
Mass(amu): 14.003074 2.014102 2.014102 14.003074
Error(keV): 0.001 0.000 0.000 0.001
Origin:
Status:
Q(gs): 0.0000 +/- 0.0001 MeV
Projectile lab energy: 3.000 MeV
CM energy: 2.623 MeV
Excitation energy: 0.000 MeV
Reaction Q-value: 0.000 MeV
Reaction threshold: 0.000 MeV
Particle 3 Particle 4 Non-relativistic Jacobians
( scattered/ejectile ) ( recoil ) Ejectile Ejectile
Ejectile Recoil dOmega/ dOmega/
Lab CM Lab Lab Lab dOmega Lab CM Lab Lab Lab dOmega dOmega dOmega Recoil Recoil
Angle Angle Energy Beta ToF Lab/CM Angle Angle Energy Beta ToF Lab/CM Lab/CM Lab/CM dOmega dOmega
(deg) (deg) (MeV) (ns/cm) ratio (deg) (deg) (MeV) (ns/cm) ratio Lab/Lab CM/Lab
0.00 0.00 3.000 0.0565 0.591 0.0000 NaN 180.00 0.000 0.0000 Inf NaN 0.0000 NaN NaN NaN
10.00 11.43 2.987 0.0564 0.592 0.7672 84.28 168.57 0.013 0.0014 23.541 2.5099 0.7672 2.5098 0.3057 0.3984
20.00 22.82 2.948 0.0560 0.596 0.7765 78.59 157.18 0.052 0.0028 11.851 1.2636 0.7765 1.2635 0.6146 0.7915
30.00 34.13 2.886 0.0554 0.602 0.7921 72.93 145.87 0.114 0.0042 7.991 0.8519 0.7921 0.8519 0.9298 1.1738
40.00 45.31 2.804 0.0546 0.611 0.8139 67.34 134.69 0.196 0.0055 6.087 0.6490 0.8139 0.6490 1.2541 1.5408
50.00 56.33 2.706 0.0537 0.622 0.8420 61.83 123.67 0.294 0.0067 4.967 0.5296 0.8420 0.5296 1.5899 1.8882
60.00 67.16 2.596 0.0526 0.635 0.8761 56.42 112.84 0.404 0.0079 4.239 0.4520 0.8761 0.4520 1.9384 2.2126
70.00 77.78 2.480 0.0514 0.649 0.9160 51.11 102.22 0.520 0.0089 3.735 0.3982 0.9160 0.3982 2.3003 2.5113
80.00 88.15 2.361 0.0501 0.665 0.9611 45.92 91.85 0.639 0.0099 3.371 0.3594 0.9610 0.3594 2.6742 2.7826
90.00 98.28 2.245 0.0489 0.682 1.0106 40.86 81.72 0.755 0.0108 3.100 0.3305 1.0105 0.3305 3.0572 3.0254
100.00 108.15 2.135 0.0477 0.700 1.0633 35.92 71.85 0.865 0.0115 2.896 0.3087 1.0632 0.3087 3.4442 3.2393
110.00 117.78 2.033 0.0465 0.717 1.1177 31.11 62.22 0.967 0.0122 2.739 0.2920 1.1176 0.2920 3.8277 3.4248
120.00 127.16 1.941 0.0455 0.734 1.1718 26.42 52.84 1.059 0.0127 2.618 0.2791 1.1717 0.2791 4.1977 3.5824
130.00 136.33 1.863 0.0445 0.749 1.2234 21.83 43.67 1.137 0.0132 2.526 0.2693 1.2234 0.2693 4.5427 3.7132
140.00 145.31 1.797 0.0437 0.763 1.2701 17.34 34.69 1.203 0.0136 2.457 0.2619 1.2701 0.2619 4.8497 3.8183
150.00 154.13 1.746 0.0431 0.774 1.3096 12.94 25.87 1.254 0.0139 2.406 0.2565 1.3096 0.2565 5.1056 3.8987
160.00 162.82 1.710 0.0427 0.782 1.3396 8.59 17.18 1.290 0.0141 2.372 0.2528 1.3396 0.2528 5.2984 3.9553
170.00 171.43 1.688 0.0424 0.787 1.3583 4.28 8.57 1.312 0.0142 2.352 0.2507 1.3583 0.2507 5.4183 3.9890
180.00 NaN 1.680 0.0423 0.789 NaN 0.00 NaN 1.320 0.0142 2.345 NaN NaN NaN NaN NaN
______________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________________
Reaction: 14N(2H,1H)15N
A: 14 2 1 15
Z: 7 1 1 7
Mass(amu): 14.003074 2.014102 1.007825 15.000109
Error(keV): 0.001 0.000 0.000 0.001
Origin:
Status:
Q(gs): 8.6087 +/- 0.0001 MeV
Projectile lab energy: 11.000 MeV
CM energy: 9.614 MeV
Excitation energy: 0.000 MeV
Reaction Q-value: 8.609 MeV
Reaction threshold: 0.000 MeV
Particle 3 Particle 4 Non-relativistic Jacobians
( scattered/ejectile ) ( recoil ) Ejectile Ejectile
Ejectile Recoil dOmega/ dOmega/
Lab CM Lab Lab Lab dOmega Lab CM Lab Lab Lab dOmega dOmega dOmega Recoil Recoil
Angle Angle Energy Beta ToF Lab/CM Angle Angle Energy Beta ToF Lab/CM Lab/CM Lab/CM dOmega dOmega
(deg) (deg) (MeV) (ns/cm) ratio (deg) (deg) (MeV) (ns/cm) ratio Lab/Lab CM/Lab
0.00 0.00 19.605 0.2012 0.166 0.0000 0.00 180.00 0.004 0.0008 43.955 0.0000 0.0000 0.0000 NaN NaN
10.00 10.72 19.562 0.2010 0.166 0.8712 67.67 169.28 0.047 0.0026 12.887 -4.9755 0.8712 -4.9759 -0.1751 -0.2010
20.00 21.42 19.435 0.2004 0.166 0.8767 70.68 158.58 0.173 0.0050 6.697 0.2448 0.8767 0.2446 3.5841 4.0882
30.00 32.08 19.231 0.1994 0.167 0.8858 68.27 147.92 0.378 0.0074 4.534 0.5498 0.8858 0.5496 1.6117 1.8195
40.00 42.67 18.956 0.1980 0.168 0.8984 64.47 137.33 0.653 0.0097 3.451 0.5224 0.8984 0.5223 1.7199 1.9144
50.00 53.18 18.623 0.1963 0.170 0.9143 60.13 126.82 0.986 0.0119 2.808 0.4645 0.9142 0.4644 1.9686 2.1533
60.00 63.60 18.244 0.1943 0.172 0.9331 55.55 116.40 1.365 0.0140 2.387 0.4130 0.9330 0.4129 2.2595 2.4218
70.00 73.90 17.834 0.1922 0.174 0.9544 50.86 106.10 1.775 0.0159 2.093 0.3717 0.9543 0.3717 2.5676 2.6905
80.00 84.09 17.406 0.1899 0.176 0.9778 46.13 95.91 2.202 0.0178 1.879 0.3393 0.9777 0.3393 2.8820 2.9477
90.00 94.15 16.977 0.1876 0.178 1.0027 41.39 85.85 2.632 0.0194 1.719 0.3138 1.0026 0.3138 3.1954 3.1870
100.00 104.09 16.558 0.1854 0.180 1.0284 36.67 75.91 3.051 0.0209 1.596 0.2937 1.0283 0.2937 3.5015 3.4050
110.00 113.90 16.161 0.1832 0.182 1.0541 31.98 66.10 3.447 0.0222 1.502 0.2778 1.0540 0.2778 3.7938 3.5995
120.00 123.59 15.798 0.1812 0.184 1.0789 27.32 56.41 3.810 0.0233 1.429 0.2653 1.0788 0.2653 4.0660 3.7690
130.00 133.18 15.477 0.1794 0.186 1.1019 22.70 46.82 4.131 0.0243 1.372 0.2556 1.1018 0.2556 4.3114 3.9129
140.00 142.67 15.206 0.1778 0.188 1.1222 18.11 37.33 4.403 0.0251 1.329 0.2481 1.1222 0.2481 4.5233 4.0308
150.00 152.07 14.989 0.1766 0.189 1.1391 13.55 27.93 4.620 0.0257 1.297 0.2426 1.1390 0.2426 4.6955 4.1224
160.00 161.42 14.831 0.1757 0.190 1.1516 9.02 18.58 4.777 0.0261 1.276 0.2388 1.1516 0.2388 4.8228 4.1878
170.00 170.72 14.736 0.1751 0.190 1.1594 4.51 9.28 4.873 0.0264 1.263 0.2366 1.1594 0.2366 4.9010 4.2270
180.00 NaN 14.704 0.1749 0.191 NaN 0.00 NaN 4.905 0.0265 1.259 NaN NaN NaN NaN NaN
______________________________________________________________________________________________________________________________
Reaction: 14N(2H,1H)15N
A: 14 2 1 15
Z: 7 1 1 7
Mass(amu): 14.003074 2.014102 1.007825 15.000109
Error(keV): 0.001 0.000 0.000 0.001
Origin:
Status:
Q(gs): 8.6087 +/- 0.0001 MeV
Projectile lab energy: 3.000 MeV
CM energy: 2.623 MeV
Excitation energy: 0.000 MeV
Reaction Q-value: 8.609 MeV
Reaction threshold: 0.000 MeV
Particle 3 Particle 4 Non-relativistic Jacobians
( scattered/ejectile ) ( recoil ) Ejectile Ejectile
Ejectile Recoil dOmega/ dOmega/
Lab CM Lab Lab Lab dOmega Lab CM Lab Lab Lab dOmega dOmega dOmega Recoil Recoil
Angle Angle Energy Beta ToF Lab/CM Angle Angle Energy Beta ToF Lab/CM Lab/CM Lab/CM dOmega dOmega
(deg) (deg) (MeV) (ns/cm) ratio (deg) (deg) (MeV) (ns/cm) ratio Lab/Lab CM/Lab
0.00 NaN 11.547 0.1554 0.215 NaN 180.00 NaN 0.062 0.0030 11.216 NaN NaN NaN NaN NaN
10.00 10.48 11.530 0.1553 0.215 0.9119 146.83 169.52 0.079 0.0034 9.951 8.3535 0.9119 8.3535 0.1092 0.1197
20.00 20.94 11.481 0.1550 0.215 0.9158 122.63 159.06 0.128 0.0043 7.793 4.4681 0.9158 4.4681 0.2050 0.2238
30.00 31.37 11.400 0.1544 0.216 0.9221 105.93 148.63 0.208 0.0055 6.108 2.5075 0.9221 2.5074 0.3678 0.3988
40.00 41.77 11.292 0.1537 0.217 0.9308 93.50 138.23 0.317 0.0067 4.956 1.5952 0.9308 1.5951 0.5836 0.6269
50.00 52.10 11.160 0.1528 0.218 0.9417 83.43 127.90 0.449 0.0080 4.163 1.1310 0.9417 1.1309 0.8327 0.8842
60.00 62.38 11.009 0.1518 0.220 0.9546 74.75 117.62 0.599 0.0093 3.601 0.8690 0.9545 0.8690 1.0985 1.1508
70.00 72.58 10.845 0.1507 0.221 0.9690 66.96 107.42 0.764 0.0105 3.190 0.7077 0.9690 0.7077 1.3691 1.4130
80.00 82.70 10.672 0.1495 0.223 0.9847 59.76 97.30 0.937 0.0116 2.880 0.6016 0.9846 0.6016 1.6368 1.6623
90.00 92.75 10.496 0.1483 0.225 1.0012 52.99 87.25 1.112 0.0126 2.644 0.5281 1.0011 0.5281 1.8958 1.8936
100.00 102.70 10.324 0.1471 0.227 1.0180 46.52 77.30 1.285 0.0136 2.460 0.4754 1.0180 0.4753 2.1416 2.1037
110.00 112.58 10.160 0.1459 0.229 1.0347 40.29 67.42 1.449 0.0144 2.316 0.4365 1.0347 0.4365 2.3704 2.2909
120.00 122.38 10.008 0.1449 0.230 1.0506 34.24 57.62 1.601 0.0151 2.204 0.4075 1.0506 0.4075 2.5783 2.4541
130.00 132.10 9.872 0.1439 0.232 1.0653 28.34 47.90 1.736 0.0158 2.116 0.3857 1.0653 0.3857 2.7618 2.5925
140.00 141.76 9.757 0.1431 0.233 1.0782 22.55 38.24 1.852 0.0163 2.049 0.3696 1.0782 0.3696 2.9175 2.7060
150.00 151.37 9.665 0.1424 0.234 1.0887 16.84 28.63 1.944 0.0167 2.000 0.3579 1.0887 0.3579 3.0422 2.7943
160.00 160.94 9.597 0.1419 0.235 1.0966 11.19 19.06 2.012 0.0170 1.966 0.3500 1.0966 0.3500 3.1334 2.8573
170.00 170.48 9.556 0.1416 0.236 1.1015 5.59 9.52 2.053 0.0171 1.946 0.3454 1.1015 0.3454 3.1889 2.8951
180.00 NaN 9.542 0.1415 0.236 NaN 0.00 NaN 2.067 0.0172 1.940 NaN NaN NaN NaN NaN
______________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________________
... 144 more lines ...
|
|
134
|
Sun Oct 31 07:29:17 2021 |
CB JM + RSS OG | Detectors mounted on plate in CARME |
(Wed 27 October)
Dismounted plate from rod. Dismounted broken detectors from plate and placed back in box. Dismounted "dog leg" struts and replaced with fully un-threaded struts.
Mounted 3335-13 in bottom position.
Attempted to mount 3335-2 in top position: dog leg strut conflicts with jacking plate. Attempted to remove - bolt stuck in thread. Removed bolt with great difficulty after dousing the bolt and hole in ethanol. M3 vented bolt is completely bent. Thread in hole appears still good. Bad bolt? Mounted strut upside-down with new M3 vented bolt. No issues. Mounted 3335-2 on plate.
Mounted extension plates for strain relief. Note countersunk bolts.
Removed all flanges with wires from CARME. Lubricated rod with ethanol. Slid rod with 2x detectors on. FIxed with bolt in front and back. Plate securely mounted in CARME, but some degree on rotational freedom is left. |
| Attachment 1: 20211027_172114.jpg
|
|
| Attachment 2: 20211027_172114.jpg
|
|
| Attachment 3: 20211027_172124.jpg
|
|
| Attachment 4: 20211027_172132.jpg
|
|
| Attachment 5: 20211027_172138.jpg
|
|
| Attachment 6: 20211027_175255.jpg
|
|
| Attachment 7: 20211027_175308.jpg
|
|
| Attachment 8: 20211027_174610.jpg
|
|
|
133
|
Sun Oct 31 07:21:09 2021 |
CB JM RSS | Detectors arrived in GSI |
(Tue 26 October)
Two new CARME DSSD arrived in GSI and collected. Visually inspected both sides. No obvious damage. Photos attached. Second detector (3335-2) was shipped in upside-down box. Does not seem to have made any difference.
3335-13 will be mounted on bottom of plate. 3335-2 will be mounted on top of plate.
|
| Attachment 1: 20211026_144342.jpg
|
|
| Attachment 2: 20211026_144656.jpg
|
|
| Attachment 3: 20211026_145204.jpg
|
|
| Attachment 4: 20211026_145206.jpg
|
|
| Attachment 5: 20211026_150432.jpg
|
|
| Attachment 6: 20211026_150727.jpg
|
|
|
405
|
Fri May 26 09:08:06 2023 |
JM, CB | Detector movement |
Hopefully we will not be opening the chamber for quite some time so find attached images of all four installed detectors and a video of them both moving into the beam axis for future reference |
| Attachment 1: 20230525_135756.jpg
|
|
| Attachment 2: detector-movement-in.mp4
|
|
494
|
Mon Feb 5 20:15:31 2024 |
CB, TD | Detector move in/out signals |
17.43 setup signals from detector movement controller.
See attachment 1
NIM TTL TTL +12V
Signal from CRYRING ------> CAEN N89 ------> LF4000 -------> CAEN N89 -------> LeCroy 222 -------> PCB amp -------> start move in
( active high ) TTL NIM FIFO -------> CAEN N89 -------> LeCroy 222 -------> PCB amp -------> start move out
not(NIM) TTL TTL ^ +12V
|
|
CAEN N89 mode switch to OUT PSU +12V
Widths of signals from LeCroy 222
move in = 75ms
move out = 25ms
Note - the outputs of EG&G/ESN LF4000 FIFO could be connected directly to the LeCroy 222 as the inputs accept NIM and TTL |
| Attachment 1: 20240205_174307.jpg
|
|
|
95
|
Wed Sep 29 13:13:51 2021 |
JM RSS PB(remotely) | Detector frame assembley |
29/9/21
We have opened the cleaned parts for assembley of the moving detector frames. We appear to have everything we require.
Standoffs - 12 M3x35 bolts, Many M3 washers, Many M3 nuts, 16 standoff tubes.
Heatshield - 46 M2 nuts, 46 M2x20 bolts, 16 M2 washers
Strain reliefs - 20 M4x35 bolts, Many M4 washers.
Strain relief supports - 30 M4x10 hex head bolts, Many M4 washers
Clamp - 2 M6x10 bolts
Upon attempting to assemble standoffs M3 bolts became stuck and could not be removed. A similar issue occurred with the MACOR assembley a few weeks ago. The detector frames have been given to Omer along with a diagram of the correct hole sizes to check and re-drill holes if neccessary. Frames will then be cleaned. We expect to get them back tomorrow to continue assembley.
30/9/21
Bolt hole sizes were checked and appear to be correct, no re-drilling required. Detector frames cleaned after stuck bolts were removed. Holes were checked again using M3 and M4 bolts, none became stuck. The heatshields, strain supports and clamp were assembled on the frames. Remaining pieces and bolts are accounted for and can be assembled when required. |
| Attachment 1: new_carrier_simple_holes.PDF
|
|
| Attachment 2: Screenshot_20210929-110343_Telegram.jpg
|
|
| Attachment 3: 20210930_164625.jpg
|
|
| Attachment 4: 20210930_164650.jpg
|
|
|
495
|
Tue Feb 6 09:39:54 2024 |
CB | Detector bias tests |
10:30 Found ADC#4 on aida 1 and 4 are suddenly noisy. See attach 1-2. Checkloaded multiple times - no effect.
Leakage current overnight was stable, but a clear transient can be observed yesterday around the times of the DSSD motion test. We did not observe this in the cave looking at the CAEN module - it might have been too fast.
Now reducing bias to 50 V and will check differences later. FEE temperatures OK.
10:50 Started DAQ. Rates are much higher in n+n strips, but p+n strips appear unaffected. See attach 4-5.
Stopped DAQ. Will leave 50V until after lunch.
11:27 Checked motor control status after yesterday's setup (see previous ELOG entry). See attach 6.
IN counters are respectively: read, increases, latch (left), latch (right)
Read is the number of pulses sent with the instruction to move. Increases is the number of times the instruction was considered. Latch on/off indicates the 1 s time interval during which commands sent to a motor arm (left or right) are considered double-firing or mistake, and ignored.
The number of increases is the same for move in/out - good!
The number of increases for move out is 1 unit less than move in - one double pulse / double command must have been received overnight and ignored.
Note torque on right arm is 2 (arbitrary units) which is unusually high and may indicate some tension in the kapton wires. No apparent effect on DSSD2,4 on that arm. Will not move for now.
13:24 FEE temperatures OK, leakage currents decreasing slighly.
13:41 Slowly increased bias to 100V. Interestingly it is now DSSD#4 (Ch#3) that displays the highest leakage current. Attach 7
13:45 Stats & Rates look rather similar to earlier this morning at 150V, but aida01 and 04 are quieter. Attach 8-9. Will leave at 100V for a while longer before moving to 150V.
15:20 Set bias to 150V
15:50 Nikos testing target. Started short run. Stats & Rates attached (10-11). Same as yesterday, aida01 and 04 ADC#4 no longer noisy.
V-I on attach 12-13. Legends unreliable!
17:00 Nikos completed target test. YR09 pressure around 3E-10 mbar with around 5E11 atoms/cm2 He target. Target not quite stable (10-20%), some optimisation required, but pressure holds at 3E-10 mbar for several minutes.
Beam on target will increase ring pressure. Can't test for now. Target tests without beam complete. Need to log all the data remotely. No logging available at present.
Leaving bias at 150V overnight. No run.
|
| Attachment 1: Screenshot_from_2024-02-06_10-39-06.png
|
|
| Attachment 2: Screenshot_from_2024-02-06_10-39-15.png
|
|
| Attachment 3: Screenshot_from_2024-02-06_10-39-27.png
|
|
| Attachment 4: Screenshot_from_2024-02-06_10-51-42.png
|
|
| Attachment 5: Screenshot_from_2024-02-06_10-51-50.png
|
|
| Attachment 6: Screenshot_from_2024-02-06_11-26-53.png
|
|
| Attachment 7: Screenshot_from_2024-02-06_13-41-40.png
|
|
| Attachment 8: Screenshot_from_2024-02-06_13-44-26.png
|
|
| Attachment 9: Screenshot_from_2024-02-06_13-44-38.png
|
|
| Attachment 10: Screenshot_from_2024-02-06_15-49-10.png
|
|
| Attachment 11: Screenshot_from_2024-02-06_15-49-16.png
|
|
| Attachment 12: Screenshot_from_2024-02-06_15-53-22.png
|
|
| Attachment 13: Screenshot_from_2024-02-06_15-54-40.png
|
|
|
183
|
Tue Feb 1 14:43:20 2022 |
JM, TD | Detector Bias, FEEs |
Detector is not biasing as it has in previous tests. Last bias 15/1/22 see previous elogs, max leakage current ~10 uA at 150V
Detector bias increases well above 10uA for voltages as low as 30-40V. Optical windows covered, Y09 valves closed, large ion pump OFF and both ion gauges OFF produces similar results but with a slightly lower leakage current.
Grounding and pulser cables removed from FEEs and jumper attached to nn bias adaptor card - no change. Bias module swapped out - no effect. NIM rack shows expected voltages (6,12,24) on multimeter.
AIDA03 - disconnected. Behaves as expected. Get waveforms and pulser peak. Pulser peak FWHM ~ 70 channels, noise transients observed.
AIDA02 - Not producing ADC data
AIDA01,04,05,06,07,08 - Very high rates - noisy
|
| Attachment 1: 22-02-01_15-03-56_aida03pulserADCspectra.png
|
|
| Attachment 2: 2022-02-01_15-14-07_aida03_pulser_DAQserver.png
|
|
| Attachment 3: 2022-02-01_15-22-23aida03_waveforms_pulser.png
|
|
| Attachment 4: 2022-02-01_15-28-45aida03_waveforms_pulser2.png
|
|
| Attachment 5: 2022-02-01_15-54-57rates_aidaALL.png
|
|
|
184
|
Wed Feb 2 21:53:32 2022 |
JM, TD | Detector Bias |
FEE mounts for 5,6,7,8 disassembled to access adaptor boards. No sign of debris which could cause short on adaptor boards.
Adaptor boards removed and checked against spares with multimeter. Both show same characteristics. Pins on feedthrough checked using multimeter. No longer see -18.5 KOhm between bias pins, no see 140 kOhm which is similar to bias pin to non bias pin from prevous tests.
Camera on interaction chamber removed and replaced with foil, no change.
Ion gauge (Edinburgh group) turned ON
Decided to move detectors using motors. Movement caused change in bias characteristic of the detector. Initial movement was 50 repetitions in and out over which the bias was increased from 10V to 140V. Over this range the detector exhibited diode like behaviour. The difference between the in and position and out position caused a 0.5 uA difference in leakage current. Once stationary, the current was stabel at 140V but after 20s current increased rapidly and tripped.
Increasing bias again to 30V while stationary (out position on motors) gave 7.3 uA , going to 60V tripped again.
Moving the detectors IN but keeping stationary gave a stable current at 30V of 4.2 uA increasing to 70V tripped again. Turning off the gauge reduced the current at 30V to 2.9 uA and 70V to be be ~15.5 uA. Opening an optical window at 70V saw no change in leakage current.
Possibility thermocouple attached to or around the detector may have come loose within the chamber? Thermocouples outisde of chamber removed from thermocouple flange so they don't interact with outside of chamber.
Detector biased to 60V - 10 uA. Detector position moved in and out 20 repetions, during movement current dropped to 2.85 uA. After motion stopped leakage current remained stable at 2.85 uA. Optical window opened no change. Torch light shone into optical window - increase in leakage current to 3.5 uA. Torch off - return to 2.85 uA.
Motion started again for 50 repetitions to test stability of leakage current. Current varies between 2.84-2.88 uA during movement, settles to 2.85 uA once motion stopped.
FEE holder reassembley. Involved turning off bias, unplugging bias cables and rebuilding assembley. FEE holders reaasembled with FEEs reconnected. Water cables, HDMI, ethernet, power connected. Bias turned off and on during reassembley multiple times to check for changes. Each time bias at 60V remained 2.85uA. Each time lower voltages appear to show diode like response in leakage current output.
Pulser connected and FEEs turned back on. Aida05 appears not producing ADC data rates 8 kHz on statistics page -investigate further. Aida06 rate ~70 kHZ can see pulser. Aida07, 08 nn bias show rates ~300 kHZ possible not enough bias for nn side. Rate for all FEEs yesterday (unbiased) was 200-300 kHZ except for AIDA03 disconnected and AIDA02 which wasn't producing ADC data. Photo of Aida06 spectra attached (log scale for pulser).
FEEs turned OFF. Bias left on 60V - 2.85 uA see if stable overnight, stable for approx 2.5 hours before leaving cryring. Detector moved to OUT position, pin back in.
To do - Grounding, reduce noise, waveforms, investigate AIDA05, how high can we bias? |
| Attachment 1: 20220202_110757.jpg
|
|
| Attachment 2: 20220202_193636.jpg
|
|
| Attachment 3: 20220202_193651.jpg
|
|
| Attachment 4: motion.png
|
|
|
678
|
Sun Apr 20 07:30:29 2025 |
CB | DSSD leakage currents over Easter |
Just after midnight on 20/04 it appears DSSD #4 leakage current has perfectly stabilised. See attached.
DSSDs remain biased.
20 April
19:30 - leakage current still stable but anydesk connection not working.
Machine is connected, but connection fails.
21 April
Anydesk connection works again. Leakage current remains stable. What changed? |
| Attachment 1: Screenshot_2025-04-20_083007.png
|
|
| Attachment 2: Screenshot_2025-04-20_193226.png
|
|
| Attachment 3: Screenshot_2025-04-21_085130.png
|
|
|
597
|
Fri Jun 7 15:53:35 2024 |
TD | DSSD leakage current increase - temperature increase in CRYRING hall |
Re-increase in DSSSD leakage current c. 14-15.00 6.6.24
There was a significant temperature spike in the CRYRING hall on the afternoon of 6.6.24 which has, partly, recovered - see attachment 1
| Quote: |
|
Started run 39.
We have the 15N+ beam with 426 keV/nucleon. We see a peak in detector top left (mostly) and bottom right, at 4600 keV. We think it is the beam (nominally 6400 keV) after going through silicon dead layer, which however seems to be thicker than expected (expected 0.7 um, but given 1.4 MeV/um energy loss it seems to be > 1 um).
To understand what was going on we first played with detector and beam position.
At 17:28 detectors are fully out, while we are playing with the electron cooler to try to remove this beam halo hitting the detector.
Detector DSSD0 top left periodically seems to get noisier (statistics up to >2E5) and we need to move the detector in and out to go back to normal operations.
------------------
The beam halo in top left detector, as the detector gets moved in, gets elongated in the y direction instead of the x direction, as expected and previosuly observed.
Run 40 started.
18:36
Merger OK, Tape server OK
ADC data item statistics looks as before. OK
FEE temperatures look OK
System checks OK
Leakage current stable
Attachments 1-4
19:43
Merger OK, Tape server OK
ADC data item statistics looks as before. OK
FEE temperatures look OK
System checks OK
Leakage current stable
Attachments 5-8
21:15
Merger OK, Tape server OK
ADC data item statistics looks as before. OK
FEE temperatures look OK
System checks OK
Leakage current stable
Attachments 9-11
00;25
Merger OK, Tape server OK
ADC data item statistics looks as before. OK
FEE temperatures look OK
System checks OK
Leakage current stable
-----------------------------------
Movements and observation in xy plot:
- Move right servo in by 20 mm and we see the halo in the top right moving accordingly (attachment 12)
-Move right pneumatic in, saw big increase on bottom right (attachment 13)
-moved beam position down vertical -6 mm and we see reduced beam spot on top left and more on bottom left
-----------------------------------
Beam - target overlap:
We have yet to obtain an overlap
We cannot do this using the beam lifetime as from beam calc the lifetime from the ring is comparable to the lifetime with a target of 1e11 at/cm2
We have tried using Rutherford. However, we will have to move the detectors IN further as the Rutherford peaks at ~3.8 deg.
Possibly we may require other overlap detections from the ring?
I also think the beam requires some optimisation, electron cooler voltage seems to be fluctuating a lot and we see some features on the detectors when moving the beam / detectors as mentioned above.
02:25
The beam intensity has decreased signficantly (by about a factor of five) since about an hour. Operators tried different things, also consulted with Frank Herfurth, but they could not solve the problem.
There is no device which indicates malfunction.
So, during the rest of the night shift we will continue searching for the overlap (of the beam with the target) with the available beam intensity.
03:30
The beam intensity has improved without any aparent intervention.
We have started a new search for the overlap with 20 minute runs per horiznotal beam position.
Merger OK, Tape server OK
ADC data item statistics looks as before. OK
FEE temperatures look OK
System checks OK
Leakage current stable
03:40
After changing the horizontal beam position from 0 mm to 1 mm, the bottom right detector lost the Rutherford peak and its position spectrum looks to be half empty.
Moving it OUT and IN again did not change the situation.
There is no reason to think that this behavior has been caused by moving the beam by just 1 mm.
04:10
The beam intensity has dropped again without any apparent reason. So, at the moment we can not continue search for the overlap.
The bottom right detector seems to be counting normally again (also without any apparent reason).
06:45
Merger OK, Tape server OK
ADC data item statistics looks as before. OK
FEE temperatures look OK
System checks OK
Leakage current stable
07:18
Lost beam again. Gleb is looking for it. Moved right detector out temporarily.
System wide checks as before.
Merger OK, Tape Server OK.
Temperatures OK.
Rates currently OK.
Leakage current decreasing.
10:10
Beam is back. Target is unusually thick at 3-5E11
Checking beam overlap.
Merger & tape server OK.
Temps OK.
Rates OK, a bit higher in 01 and 04.
|
|
| Attachment 1: Capture.PNG
|
|
|
533
|
Tue Feb 20 07:50:10 2024 |
JM | DAQ restart |
DAQ restarted. Run46. All appears OK, aida01 shows high rates across ASIC 4 even with no beam which could not be resolved via ASIC control. May suggest some damge.
Merger is running and tape server is writing data to disk. Data rate is about 1300 kB/sec from 800 kb/sec due to increase in aida01 rate.
FEE temps OK
All system checks OK
Detectors moved to IN position (left arm pot = 36.5 mm, right arm =70.49 mm). Target ON.
Lost beam again.
Run 47 started.
|
|
693
|
Tue May 27 05:03:41 2025 |
JM | DAQ restart |
06:00
FEE modules power cycled.
No issues on power cycle restart.
All system check OK - clock status, ADC calibration etc.
ASIC settings loaded are the same as previous startup. Slow comparator thresholds 0x32 (500 keV) and all FEEs set to LEC.
Statistics (ADC data) - attachment 1. Note aida10 fluctuations between 10,000 and 300 which appears to be a physics effect (beam on target)
Spectrum browser - layout 1 - attachment 2
Merger - attachment 3
Tape server - attachment 4 Data rate is about 300 kB/sec.
FEE temperatures OK
Waveforms - attachments 4,5
All Lekagae currents appear normal
Online monitoring scropt started. Beam on target. Run 22 started. See nect elog for details. |
| Attachment 1: Screenshot_from_2025-05-27_06-09-45.png
|
|
| Attachment 2: Screenshot_from_2025-05-27_06-10-13.png
|
|
| Attachment 3: Screenshot_from_2025-05-27_06-10-29.png
|
|
| Attachment 4: Screenshot_from_2025-05-27_06-11-22.png
|
|
| Attachment 5: Screenshot_from_2025-05-27_06-13-59.png
|
|
| Attachment 6: Screenshot_from_2025-05-27_06-14-43.png
|
|
| Attachment 7: Screenshot_from_2025-05-27_06-16-04.png
|
|
|
221
|
Mon Feb 21 20:56:51 2022 |
SHB, JM, CB, OH (remotely) | DAQ connection for ion current |
signals from ICT and CRYRADIO are now connected to AIDA2 and AIDA5 respectively. ICT is set to factor 200 and CRYRADIO to 40 for now.
(AIDA3 --> electron cooler)
|
| Attachment 1: cry.jpg
|
|
|
748
|
Mon Jun 16 08:17:41 2025 |
JG | D2 consumption |
The current bottle of D2 was installed on friday 06.06. at around 12:00. I assume we started at 200 bar.
Right now we have 50 bar remaining in this bottle (16.06. at 8:00).
This is an average consumption of ~15 bar/day
150 bar / 9.83 days
|
|
677
|
Fri Apr 18 16:18:33 2025 |
JM | D+D BBN energies test |
D+D minimum energy Ecm = 150 keV which corresponds to Ed=150 keV/u or Ed=300 keV. Therefore we need a threshold below this.
Test 1 - Current status
Current slow comparator threshold is 0x64 (1 MeV). ADC data items rate in all FEEs is essentially zero with this threshold. (except aida03 and aida04). Aida15 and 16 also show ~1k rates when DSSD4 current is fluctuating.
Pulser was set to find point it is cut off by the threshold. Attachments 1,2,3 show 1.8L for nn channels with the pulser set to 570,550 and 530. Over this range pulser disappears. Estimate 550 is equal to ~1 MeV.
Test 2 - Noise level at lower threshold 200 keV
Threshold set to 0x14 (200 keV). Pulser kept at 550 for the time being to gauge location of noise compared to pulser. Attachments 4,5 show 1.8L for nn and pn channels respectively. Some noise observable at low energy.
Note zero energy is around 32500 channels. In nn channels (attachment 4) pulser is to the right of the noise peak, wheras in pn channels (attachment 5) pulser is to the left of noise peak.
Attachment 6 shows data rates with pulser off. Rates okay, only aida15 has very high rate (80k), rest of channels <5k.
Test 3 - Noise level at lower threshold 100 keV
Threshold set to 0xa (100 keV). Pulser kept at 550 for the time being. Attachment 7 shows data rates with pulser off. Rates significantly higher all round. Half of channels >50k, some >100k.
Attachments 8,9 show 1.8L for pn and nn channels respectively. A lot more noise observable at low energy. Pulser peaks generally overshadowed by noise. 100 keV probably too low to set threshold.
Test 4 - Noise level at lower threshold 150 keV
Threshold set to 0xf (150 keV). Pulser kept at 550 for the time being. Attachment 10 shows data rates with pulser off. In general rates are pretty low. Most channels <1k. Aida15 and 16 pretty high.
Attachments 11,12 show 1.8L for nn and pn channels respectively. Noise observable at low energy but in general less than that of the pulser peaks.
Test 5 - D+D pulser peak at lower threshold 150 keV
Theshold kept at 0xf (150 keV). Pulser set to 180 (should be about 300 keV based on Test 1). This should be the level of d+d at our lowest beam energy.
Attachments 13,14 show 1.8L for pn and nn channels respectively.
Test 6 - D+D pulser peak at lower threshold 200 keV
Theshold increased to 0x14 (200 keV). Pulser kept at 180 (should be about 300 keV based on Test 1). This should be the level of d+d at our lowest beam energy.
Attachments 15,16 show 1.8L for nn and pn channels respectively.
|
| Attachment 1: Screenshot_from_2025-04-18_15-38-00.png
|
|
| Attachment 2: Screenshot_from_2025-04-18_15-39-21.png
|
|
| Attachment 3: Screenshot_from_2025-04-18_15-40-29.png
|
|
| Attachment 4: Screenshot_from_2025-04-18_15-45-09.png
|
|
| Attachment 5: Screenshot_from_2025-04-18_15-47-36.png
|
|
| Attachment 6: Screenshot_from_2025-04-18_15-48-20.png
|
|
| Attachment 7: Screenshot_from_2025-04-18_15-50-58.png
|
|
| Attachment 8: Screenshot_from_2025-04-18_15-52-24.png
|
|
| Attachment 9: Screenshot_from_2025-04-18_15-54-06.png
|
|
| Attachment 10: Screenshot_from_2025-04-18_15-57-50.png
|
|
| Attachment 11: Screenshot_from_2025-04-18_15-59-38.png
|
|
| Attachment 12: Screenshot_from_2025-04-18_16-00-31.png
|
|
| Attachment 13: Screenshot_from_2025-04-18_16-04-04.png
|
|
| Attachment 14: Screenshot_from_2025-04-18_16-05-24.png
|
|
| Attachment 15: Screenshot_from_2025-04-18_16-08-05.png
|
|
| Attachment 16: Screenshot_from_2025-04-18_16-09-22.png
|
|
|
341
|
Tue Mar 1 05:23:02 2022 |
JM, EM | Current status |
06:20
Servo motors moved to fully out position as some work on the beam was neccessary. Beam injection had dropped from ~9e7 to around 1e7. Potentiometer reads 19.10 mm.
Still trying to improve target density. Current setpoint 100 K.
Merger OK
Data rate = 1600 kb/sec
Leakage current = 3.21 uA
System checks OK - wr fails
Base Current Difference
aida01 fault 0xab60 : 0xab8e : 46
aida02 fault 0x88d3 : 0x8900 : 45
aida03 fault 0x23aa : 0x23d8 : 46
aida04 fault 0x15d7 : 0x1605 : 46
aida05 fault 0x2f03 : 0x2f0f : 12
White Rabbit error counter test result: Passed 0, Failed 5
Understand the status reports as follows:-
Status bit 3 : White Rabbit decoder detected an error in the received data
Status bit 2 : Firmware registered WR error, no reload of Timestamp
Status bit 0 : White Rabbit decoder reports uncertain of Timestamp information from WR
Avg ring pressure = 4.3E-10 mbar.
06:40
Target density still very low. Setpoint back to 116 K. Detectors still fully out, very low rutherford rate.
Attempted to move nozzle to increase density, already on maximum point.
06:50
Setpoint to 95 k. Small increase in target density, however this was temporary
|
| Attachment 1: 2022-03-01_06-42-53-ExRate.png
|
|