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ID |
Date |
Author |
Subject |
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349
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Wed Oct 25 17:49:09 2017 |
JT, AM, NB, DS, DM, AT | pulser in CLOVERS | G7 pulser weird behavior
Pulser signals G7Red & G7Green were crossed before the digitizer (the aluminium potato?)
Pulser removed from G7Red & G7Green
Background measurement
Start: 01:44
Run: 000
File: 171026_0144_bck_000.dlt
Stop: |
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400
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Mon Oct 29 12:08:12 2018 |
JR, JA, AT | Background |
Background was measurement
Pulser: NO
DLT: No
Online:
Start:21:07
Stop:
Comment: V2A8C9 contains now the 10Hz clock signal coming from
the same section of the clock where the 100Hz sync signal is extracted.
It will be there even if we inhibit the pulser signals to the preamps
SYNC pulser is 200Hz because
the gate generator produces double peaks from the 100Hz clock
v1a6c13-16 had a configuration error (Trigger window to short)
It's corrected at 14:55 (2018/10/30) on file 181030_Conf_BrikenFull_LowThrAdj_masterCLK.xlsx . |
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109
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Fri Nov 4 13:16:42 2016 |
JLTain,ATolosa,JAgramunt | Neutron Background | Beam tuning in BigRIPS
At 19:00 access to Exp. Area was closed and the tuning
of BigRips started.
Unfortunately the 252Cf was left on the table close
to the stairs and cannot be removed until 23:00.
We did a background measurement
Start: 19:00
Stop: 22:18
File: 161104_2218_BeamTuning.root
In the attached figure 1 one can see a plot of the rate
(neutrons/10s) in the BRIKEN detector during this time
The rate was at high as 150n/s during this period.
We estimate that the influence of the 252Cf source is about 15n/s
(corresponds to the lowest rates)
Also attached are pictures of the Top and Bottom plastic veto detectors
mounted just above and below the hole in the shielding.
Interestingly the bottom sees less counts at high energy
and this could be related to the 10cm lead wall raised
before the degrader to protect AIDA that covers only partially
the top detector.
Also attached is the neutron spectrum for the different rings superposed.
(ROOT color code) |
| Attachment 1: Screenshot_from_2016-11-04_22-26-10.png
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| Attachment 2: Screenshot_from_2016-11-04_22-35-46.png
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| Attachment 3: Screenshot_from_2016-11-04_22-35-29.png
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| Attachment 4: Screenshot_from_2016-11-04_22-43-32.png
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66
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Fri Oct 7 08:09:47 2016 |
JLTain et al | Background | Background measurement overnight
Start: Oct-6 2242 Stop: Oct-7 10:45
file: 161007_1045_bck.root
See attached figure.
We see that low amplitude noise overlaps with the neutron spectrum.
We also see the grass-like background which extends all the way
up to the ADC range. |
| Attachment 1: Bckg-1st.pdf
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| Attachment 2: 161007_1045_bck.pdf
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230
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Thu Mar 30 11:35:52 2017 |
JLT,TD,PV,JLiu | 40Mg run 18 | Date: 30/03/2017
Start: 19:33
BRIKEN run: 18
AIDA Run: R16_288
BigRIPS run: 160
DLT:170330_1933_Mg40_018.dlt
BRIKEN Rate: 3
F11 Rate: 13
Date: 30/03/2017
Stop: 20:25
BRIKEN run:18
AIDA Run: r16_301
BigRIPS run: 160
Root file: 170330_1605_2025_B018_Mg40.root
OBSERVATIONS: Previous online not cleared |
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229
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Thu Mar 30 10:26:06 2017 |
JLT,TD,PV | 40Mg run 17 | Date: 30/03/2017
Start: 18:24
BRIKEN run: 17
AIDA Run: R16_270
BigRIPS run: 159
DLT:170330_1824_Mg40_017.dlt
BRIKEN Rate: 3
F11 Rate: 13
Date: 30/03/2017
Stop: 19:32
BRIKEN run:17
AIDA Run: r16_288
BigRIPS run: 159
Root file: 170330_1605_1932_B017_Mg40.root
OBSERVATIONS: Previous online not cleared |
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231
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Thu Mar 30 12:27:44 2017 |
JLT,TD,JLiu,SN | 40Mg run 19 | Date: 30/03/2017
Start: 20:26
BRIKEN run: 19
AIDA Run: R16_301
BigRIPS run: 161
DLT:170330_2026_Mg40_019.dlt
BRIKEN Rate: 3
F11 Rate: 13
Date: 30/03/2017
Stop: 21:32
BRIKEN run:19
AIDA Run: r16_318
BigRIPS run: 161
Root file: 170330_1605_2132_B019_Mg40.root
OBSERVATIONS: Previous online not cleared |
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232
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Thu Mar 30 13:35:30 2017 |
JLT,TD, JLiu,SN, GK | 40Mg run 20 | Date: 30/03/2017
Start: 21:33
BRIKEN run: 20
AIDA Run: R16_318
BigRIPS run: 162
DLT:170330_2133_Mg40_020.dlt
BRIKEN Rate: 3
F11 Rate: 13
Date: 31/03/2017
Stop: 00:11
BRIKEN run:20
AIDA Run: r16_357
BigRIPS run: 164
Root file: 170330_1605_0012_B020_Mg40.root
OBSERVATIONS: Previous online not cleared
START OF BIGRIPS RUN 163 AT 22:16
START OF BIGRIPS RUN 164 AT 23:07 |
| Attachment 1: screenshoot_170330_2351.png
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223
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Thu Mar 30 04:49:52 2017 |
JLT,TD | 40Mg Run 11 | Date: 30/03/2017
Start: 12:47
BRIKEN run: 011
AIDA Run: R16_178
BigRIPS run: run153
DLT: 170330_1247_Mg40_011.dlt
BRIKEN Rate: 3 cps
F11 Rate: 11 cps
Date: 30/03/2017
Stop: 13:54
BRIKEN run: 011
AIDA Run: R16_196
BigRIPS run: 153
Root file:170330_0947_1354_B011_Mg40.root
OBSERVATIONS: Previous online spectra not cleared |
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258
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Fri Mar 31 18:00:41 2017 |
JLT,SN,JLiu,YS,CG | 37Na run 45 | Date: 1/04/2017
Start: 01:57
BRIKEN run: 45
AIDA Run: R20_6
BigRIPS run: 197
DLT: 170401_0157_Na37_045.dlt
BRIKEN Rate: 8 cps
F11 Rate: 1.5 cps
Date: 1/04/2017
Stop:02:25
BRIKEN run: 45
AIDA Run: R20_12
BigRIPS run: 197
Root file: 170401_0157_0225_B045_Na37.root
OBSERVATIONS: new degrader 16.8mm Al
Stopped to change stripper foil |
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228
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Thu Mar 30 09:24:45 2017 |
JLT,RC,TD,PV,SN | 40Mg run 16 | Date: 30/03/2017
Start: 17:22
BRIKEN run: 16
AIDA Run: R16_252
BigRIPS run: 158
DLT:170330_1722_Mg40_016.dlt
BRIKEN Rate: 3
F11 Rate: 13
Date: 30/03/2017
Stop: 18:22
BRIKEN run:16
AIDA Run: r16_270
BigRIPS run: 158
Root file: 170330_1605_1822_B016_Mg40.root
OBSERVATIONS: Previous online not cleared |
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224
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Thu Mar 30 05:56:28 2017 |
JLT,JA,CG,PV | 40Mg Run 12 | Date: 30/03/2017
Start: 13:54
BRIKEN run: 012
AIDA Run: R16_1196
BigRIPS run: run153
DLT: 170330_1355_Mg40_012.dlt
BRIKEN Rate: 45 cps
F11 Rate: 14 cps
Date: 30/03/2017
Stop: 14:25
BRIKEN run:12
AIDA Run: r16_205
BigRIPS run: 154
Root file:170330_0947_1425_B011_Mg40.root
OBSERVATIONS: Previous online spectra not cleared
THERE WAS SOME CONFUSION AND A NEW BRIKEN RUN WAS STARTED
BUT BIGRIPS HAD NOT STOP
NEW RUN 154 started at 14:05 |
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234
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Thu Mar 30 17:17:21 2017 |
JLT,GK,DK,JLiu | 40Mg run 22 | Date: 31/03/2017
Start: 01:14
BRIKEN run: 22
AIDA Run: R16_372
BigRIPS run: 166
DLT: 170331_0012_Mg40_021.dlt
BRIKEN Rate: 3
F11 Rate: 13
Date: 31/03/2017
Stop: 02:12
BRIKEN run: 22
AIDA Run: R16_387
BigRIPS run: 166
Root file:
OBSERVATIONS: Previous online was cleared
170331_0012_0212_B022_Mg40.root |
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235
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Thu Mar 30 18:14:59 2017 |
JLT,DK,GK, Liu | 40Mg run23 | Date: 31/03/2017
Start: 02:14
BRIKEN run: 23
AIDA Run: R16_387
BigRIPS run: 167
DLT: 170331_0214_Mg40_023.dlt
BRIKEN Rate: 4
F11 Rate: 13
Date: 31/03/2017
Stop: 03:14
BRIKEN run: 23
AIDA Run: R16_402
BigRIPS run: 167
Root file: 170331_0012_0314_B023_Mg40.root
OBSERVATIONS: Previous online was cleared |
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294
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Wed May 24 13:22:46 2017 |
JLT,AT,KR,SG,RY,... | CLOVER 152Eu | We connect the pulser to both CLOVERs
G7: It looks OK except for the G7-Green as before
(there pulser peak in the spectrum)
D4: the pulser peak appears at very low energies (200-600keV)
there seems to be a problem with pulser processing in the preamplifiers.
Should we still use it? We remove for the moment.
152Eu source calibration.
We put the 152Eu source at the center (on the cardboard)
and check de energy calibration. For most of the crystals
the calibration from March was pretty good except for D4-Red
that the gain changed by a factor 1/2 and D4-blue that changed by 2 (!?)
We redo the calibration:
G7: the resolution at 1.4MeV is 2.7keV
D4: the resolution at 1.4MeV is 3.9keV
DLT File; 170525_0947_152Eu_z0cm.root_000.dlt
RUN Number; 000
RootFile: 170525_1034_152Eu.root
Comments: rate of the clovers increased from 2000cps to 2400cps
for 10 min (from TS = 41.8E6 ms to TS = 42.4E6 ms)
We plugged the pulser in clover D4.
DLT File: 170525_0947_152Eu_z0cm_PulserD4_001.dlt
RUN Number: 001
RootFile: 170525_1146_152Eu_z0cm_D4Pulser.root
Source dimensions:
Diameter: 24.98 mm
DZ= 5.98 mm
Source ID: Ref 272, 09/9011
Source label up |
| Attachment 1: 170525_152Eu_CloversRate.png
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293
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Wed May 24 06:42:05 2017 |
JLT,AT,AM,RY,SG | START Preparation | We start to check every thing for the coming run
New directory: /data/1705Preparation/
Copy last configuration file of Ahn parasitic run
renamed:170524_Conf_BrikenFull.xlsx
252Cf source at the center.
Root file: 170524_252Cf_1st.root
Issues:
Pulsers of He006, He140 are tripled
There is a strange background above n-peak in He034
Calibration is ok except for He003, He004 and He006 !!!!
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307
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Fri May 26 04:20:54 2017 |
JLT,AA,AT | CLOVER 60Co | 60Co No AIDA, Efficiency calibration
Start: 12:21
Stop: 12:50
Files:
170526_1221_60Co_noAIDA_z0cm_017.dlt
170526_1221_1250_60Co_z0cm.root |
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257
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Fri Mar 31 16:56:16 2017 |
JLT, YS,Liu,PV,CG | New Configuration file | New configuration file:
170331_Conf_BrikenFull.xlsx
with a new calibration
for Si_T,B and F11_PL_R,L.
Increased low energy limit for F11Rrate to 1MeV |
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259
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Fri Mar 31 18:28:54 2017 |
JLT, YS Liu, OH, CG | 37Na run 46 | Date: 1/04/2017
Start: 02:46
BRIKEN run: 46
AIDA Run: R20_19
BigRIPS run: 198
DLT: 170401_0246_Na37_046.dlt
BRIKEN Rate: 8 cps
F11 Rate: 2 cps
Date: 1/04/2017
Stop:03:28
BRIKEN run: 46
AIDA Run: R20_28
BigRIPS run: 198
Root file:
OBSERVATIONS: We do not save the online histograms during the rest of the night shift, according to JLT's advice. |
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256
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Fri Mar 31 15:30:24 2017 |
JLT, PV, Liu, SN, CG | 34Ne run 44 | Date: 31/03/2017
Start: 23:27
BRIKEN run: 44
AIDA Run: R19_16
BigRIPS run: 195
DLT: 170331_2327_34Ne_044.dlt
BRIKEN Rate: 36 cps
F11 Rate: 7 cps
Date: 1/04/2017
Stop: 00:47
BRIKEN run: 44
AIDA Run: R19_37
BigRIPS run: 195
Root file: 170401_2327_0047_B044_Ne34.root
OBSERVATIONS: new degrader 16.8mm Al |
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