 Sat Nov 11 17:08:50 2017, RG, DK, CL, TD, AM, MD, Run 96
|
Header: Continue with 4.0 MeV/u Empty Frame
Ender:
====================================================
Run number : 96
Date : 11 / 11 / 2017
Start time : 18:09:43
Stop time : 18:40
Trigger rate (MIDAS) :
Blocks written : 0 blocks written, it says.
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 0 (actually ~0.1 Hz)
1- Gated : 0 (actually ~0.1 Hz)
2- dE : 150k
3- E : 30
4- HI : 37
5- Pulser : 2
6- Clock : 968
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : Nominal 4.0 MeV/u
Beam intensity (epA) :
Target : Empty Frame
Ladder position (mm) : 52.09
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.67
E voltage (V) : -350
E leakage (uA) : 2.10
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.57
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : 0.55
PA power (Down, positive) (A) : 0.79
PA power (Down, negative) (A) : 0.25
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 6.9 x 10^-6
Pressure (old gauge) (mbar) : 2.0 x 10^-5
Pressure (SEC) (mbar) : 3.9 x 10^-6
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.0
Temp (chamber) deg : 5.9 ~ 6.0
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Comments: Increased pulser rate to 250 Hz after the run, to flush the previous buffer in the Tape Server.
See run 97
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Sat Nov 11 15:17:24 2017, CLW, PJW, RG, TD, MD, DK, Run 95
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Header: Continue with 4.0 MeV/u on Carbon after laser cleaning
Ender:
====================================================
Run number : 95
Date : 11 / 11 / 2017
Start time : 16:16:21
Stop time : 18:07:05
Trigger rate (MIDAS) : 2 to 5
Blocks written : 65
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 3
2- dE : 133658
3- E : 26
4- HI : 651
5- Pulser : 2
6- Clock : 969
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : Nominal 4.0 MeV/u
Beam intensity (epA) : 1.75ish pA
Target : C_25
Ladder position (mm) : 112.82 mm
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.67
E voltage (V) : -350
E leakage (uA) : 2.105
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.55
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : 0.55
PA power (Down, positive) (A) : 0.79
PA power (Down, negative) (A) : 0.25
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.0 x 10^-6
Pressure (old gauge) (mbar) : 2.0 x 10^-5
Pressure (SEC) (mbar) : 3.9 x 10^-6
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -9.9 to -10.2
Temp (chamber) deg : 5.8
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: no beam for last few mins as we tested the radioactivity in the faradaycup with valve closed
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Sat Nov 11 14:15:12 2017, CLW, PJW, RG, Run94
|
Header: 3.99 MeV/u and C_25.
Ender: We stop because the lasers are being cleaned, and we saw the scalars drop. See Comment below.
====================================================
Run number : 93
Date : 11/11/17
Start time : 15:09:09
Stop time : 16:08:46
Trigger rate (MIDAS) : 3
Blocks written : 35
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 3
2- dE : 134k
3- E : 52
4- HI : 559
5- Pulser : 2
6- Clock : 970
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : ~1.5 pA
Target : C_25 (Pos#3; 430-500 ug/cm2)
Ladder position (mm) : 112.78
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.67
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.53
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.1 E-06
Pressure (old gauge) (mbar) : 2.0 E-05
Pressure (SEC) (mbar) : 4.0 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.1
Temp (chamber) deg : 5.5
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: At around 16:00, the laser team goes in to do some cleaning. We are continuing to run while watching our scalars.
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Sat Nov 11 12:16:28 2017, CLW, PJW, RG, Run 93
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Header: 3.99 MeV/u and CH2_30+25. Beam is back
Ender:
====================================================
Run number : 93
Date : 11/11/17
Start time : 13:17:12
Stop time : 15:00:51
Trigger rate (MIDAS) : 2-4
Blocks written : 57
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 2
2- dE : 135k
3- E : 68
4- HI : 727
5- Pulser : 2
6- Clock : 970
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : ~1.5-2 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.67
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.50
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.2 E-06
Pressure (old gauge) (mbar) : 2.1 E-05
Pressure (SEC) (mbar) : 4.0 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.0
Temp (chamber) deg : 5.6
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
==================================================== |
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Sat Nov 11 11:21:22 2017, CLW, PJW, RG, Run 92
|
Header: 3.99 MeV/u and CH2_30+25. Beam is back
Ender:
====================================================
Run number : 92
Date : 11/11/17
Start time : 12:22:50
Stop time : 12:50:13
Trigger rate (MIDAS) : 2-4
Blocks written : 14
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 3
2- dE : 140k
3- E : 69
4- HI : 686
5- Pulser : 2
6- Clock : 970
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) :
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.67
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.50
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.2 E-06
Pressure (old gauge) (mbar) : 2.1 E-05
Pressure (SEC) (mbar) : 4.0 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -9.9
Temp (chamber) deg : 5.4
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: Run had to be stopped early because some parts of the accelerator tripped. Miguel sorted it out remotely.
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Sat Nov 11 09:20:56 2017, CLW, MD, PJW, Run 91
|
Header: 3.99 MeV/u and CH2_30+25. Beam is back
Ender:
====================================================
Run number : 91
Date : 11/11/17
Start time : 10:20:26
Stop time : 12:22:08
Trigger rate (MIDAS) : 4
Blocks written : 78
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 4
1- Gated : 3
2- dE : 135k
3- E : 66
4- HI : 788
5- Pulser : 2
6- Clock : 970
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : ~2 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.65
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.43
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.4 E-06
Pressure (old gauge) (mbar) : 2.2 E-05
Pressure (SEC) (mbar) : 4.1 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.1
Temp (chamber) deg : 5.3
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
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|
Sat Nov 11 07:45:34 2017, Claudia, Checking Laser quality
|
There is an option to see when the beam is gone if it is due to lasers or due to the accelerator.
- window next to proton requestion switch
- put middle faraday cup in
- switch mass to stable copper 63Cu
- check faraday cup current. should be around 1-3 nA
- switch back to 59Cu
-Faraday Cup out
- further descption is on a piece of paper upstairs |
Sat Nov 11 07:44:16 2017, MD, CLW, PJW, Run 90 
|
Header: 3.99 MeV/u and CH2_30+25. Beam is back
Ender:
====================================================
Run number : 90
Date : 11/11/17
Start time : 08:31:59
Stop time : 10:20:20
Trigger rate (MIDAS) : 3
Blocks written :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 3
2- dE : 132k
3- E : 64
4- HI : 621
5- Pulser : 2
6- Clock : 970
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : ~2.2 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.65
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.43
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.6 E-06
Pressure (old gauge) (mbar) : 2.2 E-05
Pressure (SEC) (mbar) : 4.3 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.0
Temp (chamber) deg : 5.7 (from before)
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
Laser was optimized as well before (see picture for conditions)
==================================================== |
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Sat Nov 11 06:57:14 2017, MD, CLW, PJW, Run 89
|
Header: 3.99 MeV/u and CH2_30+25. Continue after Laser update (cleaning), but still no real beam
Ender:
====================================================
Run number : 89
Date : 11/11/17
Start time : 07:57:31
Stop time : 08:31:57
Trigger rate (MIDAS) : 0
Blocks written : 1
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated :
1- Gated :
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : 0.05 - 0.1 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.65
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.42
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.65 E-06
Pressure (old gauge) (mbar) : 2.2 E-05
Pressure (SEC) (mbar) : 4.3 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.1
Temp (chamber) deg : 5.6
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
8 good event in first 8 minutes
then laser was optimized, but still 0.1pA beam (almost nothing), called Miguel and he fixed it remotely
Beam back at 08:28:20, so the last 3 minutes there was some beam. Stopped to start a new run.
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Sat Nov 11 05:49:00 2017, AM & MD, run 88
|
Header: 3.99 MeV/u and CH2_30+25.
Ender:
====================================================
Run number : 88
Date : 11/11/17
Start time : 06:49:09
Stop time : 07:34:34
Trigger rate (MIDAS) : 0
Blocks written : 1
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 0 (or near as damn it)
1- Gated : 0
2- dE : 138k
3- E : 56
4- HI : 15
5- Pulser : 2
6- Clock : 968
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : ~ 0.1 pA (yes!)
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.65
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.42
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 7.8 E-06
Pressure (old gauge) (mbar) : 2.35 E-05
Pressure (SEC) (mbar) : 4.3 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.1
Temp (chamber) deg : 5.7
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: Laser needs cleaning - person (Dima) on the way. Right now, very low beam current. Stopped when Dima arrived
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Sat Nov 11 03:58:58 2017, MD, ASM, Run 87
|
Header: 3.99 MeV/u and CH2_30+25.
Ender:
====================================================
Run number : 87
Date : 11/11/17
Start time : 04:48:45
Stop time : 06:38:00
Trigger rate (MIDAS) : 3
Blocks written : 44
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 3
2- dE : 125k
3- E : 60
4- HI : 575
5- Pulser : 2
6- Clock : 968
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : ~ 1.5 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.64
E voltage (V) : -350
E leakage (uA) : 2.11
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.41
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 8.0 E-06
Pressure (old gauge) (mbar) : 2.4 E-05
Pressure (SEC) (mbar) : 4.4 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.1
Temp (chamber) deg : 5.8
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: Noticed beam had gone, so stopped the run.
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|
Sat Nov 11 01:40:48 2017, MD, DMK, ASM, Run 86
|
Header: 3.99 MeV/u and CH2_30+25. Continue after reheat the primary target (GPS) between 02:20 and 02:30
Ender:
====================================================
Run number : 86
Date : 11/11/17
Start time : 02:37:15
Stop time : 04:48:36
Trigger rate (MIDAS) : 2
Blocks written : 87
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 3
2- dE : 136k
3- E : 103
4- HI : 432
5- Pulser : 2
6- Clock : 968
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) : 3.99 MeV/u
Beam intensity (epA) : ~1.5 pA (spread is decreased: 0.7 - 2.2pA) (pictures from 3:44 and 4:35)
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position (mm) : 67.26
HI Degrader foil (um) : 10um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.63
E voltage (V) : -350
E leakage (uA) : 2.12
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.40
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) : 1.55
PA power (Up, negative) (A) : -0.55
PA power (Down, positive) (A) : 0.8
PA power (Down, negative) (A) : -0.28
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) : 8.35 E-06
Pressure (old gauge) (mbar) : 2.6 E-05
Pressure (SEC) (mbar) : 4.6 E-06
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg : -10.0
Temp (chamber) deg : 5.6
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
02:14 realized target current was done, but not long. Stopped Run 85
02:18 send protons to beam dump and then called PS to stop them
02:20 in Knob open application: current was set to 0, Reset, turned ON and was increased with medium steps of
around 10A.
02:30 target current readout at 438 A (set to 433 A) again. Proton back on target
04:40 Laser quality is decreasing. Watched the bars (green and blue) a while and observed huge fluctuation.
Green bar (right) is very low in general, and blue bar (left) is jumping between full and something less of
one half. I thought that should be more stabil.
04:46 Events in E_a+E_HI-sepctra: 6 event between 67-129MeV (not sure when it last was reset) --> very low event
rate.
If the beam is running is mainly checked in MIDAS by looking at trigger(0 and 1) and on refresh update of
spectra s3008 (ADC versus channel (s2order) to see new events. n+n-side of detectors still seeing much noise,
which is also obvious in the scalar rates.
==================================================== |
|
Sat Nov 11 00:24:19 2017, MD, ASM, DMK, Run 85
|
Header: 3.99 MeV/u and CH2_30+25.
Ender: primary target current (RED) down to 5V...
====================================================
Run number : 85
Date : 11/11
Start time : 01:23:45
Stop time : 02:14
Trigger rate (MIDAS) : 3-4
Blocks written : 18
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalars (approx rates)
0- Ungated : 3
1- Gated : 3
2- dE : 109k
3- E : 102
4- HI : 624
5- Pulser : 2
6- Clock : 968
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy : 3.99 MeV/u
Beam intensity : 1.7 - 2.0 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position : 67.26
HI Degrader foil (um) : 10 um Al
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.61
E voltage (V) : -350
E leakage (uA) : 2.125
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.4
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (upstream, positive) : 1.55 mA
PA power (upstream, negative) : -0.55 mA
PA power (downstream, positive) : 0.8 mA
PA power (downstream, negative) : -0.28 mA
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) : 8.6E-06 mbar
Pressure (old gauge) : 2.7E-05 mbar
Pressure (SEC) : 4.7E-06 mbar
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) : -10.0 degrees C
Temp (chamber) : 5.8 degrees C
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
02.14 realized target current was down. Should have happened quite recently.
Interestingly, when target current was down (no Cu-beam) the gated and ungated trigger rate was 0, although
Pulser was 2. Is the pulser somehow excluded from the trigger??
==================================================== |
|
Sat Nov 11 00:01:41 2017, Daid. Mirco, Trigger and scalars for 4.0 MeV/u
|
Tom et al. tuned the trigger this evening, before we began the runs. (Run 82, or Run 83??)
===TRIGGER===
Trigger condition is: E OR HI/ds
We count the CAMAC OR signals as follows: A,B
A: Which CAMAC module? Left to right, 1,2,3,4,5
B: Which module channel? This is the number engraved on the module by the LEMO output.
==E Definition==
All p-n sides of E detector:
RAL 109 discrim cable numbers: 4, 5, 7
=> Corresponds to CAMAC OR Numbers 2,2; 2,1; 3,1, respectively.
==HI/ds Definition==
All p-n sides of HI detector: 8, 9, 11
RAL 109 discrim cable numbers
=> Corresponds to CAMAC OR Numbers 4,3; 4,2; 5,3, respectively.
ds=Downscale; ds factor is 8 = 2^8 = 256
===SCALARS===
0: Ungated
1: Gated
2: dE (n-n) [Cable 3]
3: E (n-n) [Cable 6]
4: HI (n-n) [Cable 10]
5: Pulser
6: Clock
===DISCUSSION===
The n-n side of the E detector seems to be noisier than the p-n side. Thus the p-n side is used for the trigger logic, whilst the n-n side is used for the scalar.
However, there seems to be something confusing about using the p-n side for the true trigger but the n-n side for the scalars. It means we cannot compare the scalars self-
consistently to each other. That is, the gated or ungated signals do not have a strong correlation with the individual detector scalars. In principle if we have enough LEMO
cables and Fan In/Fan Out modules, we should simply propagate the p-n signals to both the trigger (when relevant, i.e. E detector) and the scalars alike. For now we don't
touch anything, though. |
|
Fri Nov 10 21:59:05 2017, SL, MD, Run 84
|
Header: 3.99 MeV/u and CH2_30+25.
Ender:
====================================================
Run number : 84
Date : 10/11 to 11/11
Start time : 23:03
Stop time : 01:22:11
Trigger rate (MIDAS) :
Blocks written : 48
——————————————————————————————
Run Scalars (approx rates)
0- Ungated :
1- Gated :
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
——————————————————————————————
Beam energy : 3.99 MeV/u
Beam intensity : 1.7 - 2.0 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position : 67.26
HI Degrader foil (um) : 10 um Al
——————————————————————————————
del_E voltage (V) : -40
del_E leakage (uA) : 0.6
E voltage (V) : -210
E leakage (uA) : 2.02
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.325
——————————————————————————————
PA power (upstream, positive) : 1.55 mA
PA power (upstream, negative) : -0.55 mA
PA power (downstream, positive) : 0.8 mA
PA power (downstream, negative) : -0.28 mA
——————————————————————————————
Pressure (IMG1) : 1.0E-05 mbar
Pressure (old gauge) : 3.8E-05 mbar
Pressure (SEC) : 5.4E-06 mbar
——————————————————————————————
Temp (Chiller) : -9.9 degrees C
Temp (chamber) : 5.5 degrees C
——————————————————————————————
Comments:
==================================================== |
|
Fri Nov 10 20:30:57 2017, SL, Run 83
|
Header: 3.99 MeV/u and CH2_30+25.
Ender: Recompiling sort code.
====================================================
Run number : 83
Date : 10/11
Start time : 21:30
Stop time : 22:59
Trigger rate (MIDAS) :
Blocks written : 150
——————————————————————————————
Run Scalars (approx rates)
0- Ungated :
1- Gated :
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
——————————————————————————————
Beam energy : 3.99 MeV/u
Beam intensity : 1.7 - 2.0 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position : 67.26
HI Degrader foil (um) : 10 um Al
——————————————————————————————
del_E voltage (V) : -40
del_E leakage (uA) : 0.6
E voltage (V) : -210
E leakage (uA) : 2.02
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.325
——————————————————————————————
PA power (upstream, positive) : 1.55 mA
PA power (upstream, negative) : -0.55 mA
PA power (downstream, positive) : 0.8 mA
PA power (downstream, negative) : -0.28 mA
——————————————————————————————
Pressure (IMG1) : 1.0E-05 mbar
Pressure (old gauge) : 3.8E-05 mbar
Pressure (SEC) : 5.4E-06 mbar
——————————————————————————————
Temp (Chiller) : -9.9 degrees C
Temp (chamber) : 5.5 degrees C
——————————————————————————————
Comments:
==================================================== |
|
Fri Nov 10 19:57:49 2017, SL, Run 82
|
Header: 3.99 MeV/u and CH2_30+25.
Ender:
====================================================
Run number : 82
Date : 10/11
Start time : 21:03
Stop time : 21:30
Trigger rate (MIDAS) :
Blocks written :
——————————————————————————————
Run Scalars (approx rates)
0- Ungated :
1- Gated :
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
——————————————————————————————
Beam energy : 3.99 MeV/u
Beam intensity : 1.98 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position : 67.26
HI Degrader foil (um) : 10 um Al
——————————————————————————————
del_E voltage (V) : -40
del_E leakage (uA) : 0.6
E voltage (V) : -210
E leakage (uA) : 2.02
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.325
——————————————————————————————
PA power (upstream, positive) : 1.55 mA
PA power (upstream, negative) : -0.55 mA
PA power (downstream, positive) : 0.8 mA
PA power (downstream, negative) : -0.28 mA
——————————————————————————————
Pressure (IMG1) : 1.0E-05 mbar
Pressure (old gauge) : 3.8E-05 mbar
Pressure (SEC) : 5.4E-06 mbar
——————————————————————————————
Temp (Chiller) : -9.9 degrees C
Temp (chamber) : 5.5 degrees C
——————————————————————————————
Comments:
==================================================== |
|
Fri Nov 10 19:01:13 2017, SL, Run 81
|
Header: 3.99 MeV/u and CH2_30+25.
Ender: Stopped to check E hardware.
====================================================
Run number : 81
Date : 10/11
Start time : 20:20
Stop time : 20:50
Trigger rate (MIDAS) :
Blocks written : 70
——————————————————————————————
Run Scalars (approx rates)
0- Ungated : 0
1- Gated : 0
2- dE : 12k
3- E : 92
4- HI : 50
5- Pulser : 2
6- Clock : 970
——————————————————————————————
Beam energy : 3.99 MeV/u
Beam intensity : 1.8 pA
Target : CH2_30+25 (Pos#6; 490-520 ug/cm2)
Ladder position : 67.26
HI Degrader foil (um) : 10 um Al
——————————————————————————————
del_E voltage (V) : -40
del_E leakage (uA) : 0.6
E voltage (V) : -350
E leakage (uA) : 2.17
E_hi voltage (V) : -14
E_hi leakage (uA) : 2.325
——————————————————————————————
PA power (upstream, positive) : 1.55 mA
PA power (upstream, negative) : -0.55 mA
PA power (downstream, positive) : 0.8 mA
PA power (downstream, negative) : -0.28 mA
——————————————————————————————
Pressure (IMG1) : 1.0E-05 mbar
Pressure (old gauge) : 3.8E-05 mbar
Pressure (SEC) : 5.4E-06 mbar
——————————————————————————————
Temp (Chiller) : -9.9 degrees C
Temp (chamber) : 5.5 degrees C
——————————————————————————————
Comments:
==================================================== |
|
Fri Nov 10 16:32:19 2017, Claudia, RAL Amplitude Thresholds
|
Thresholds of RAL amplifiers set to: dE 30mV; E 20 mV, HI 20 mV |
|
Fri Nov 10 14:48:22 2017, TD, Calibration 18x
|
ADC offsets calculated using data files R42-r47
ADC gains calculated using data files R26, R30 & R38
Re-sorting data files R26, R30 & R38 using calculated ADC offsets and gains
the 241Am alpha peak centroids are at
E_HI 86 c(3) = 5.380*10/86 = 0.625581
E_alpha 251 c(2) = 5.380*10/251 = 0.214343
dE_alpha 1021 c(1) = 5.380*10/1021 = 0.0526934
Calculate energies (100keV bins) for channel i using
e(i) = INT( c(n) * gain(i) * ( data(i) - offset(i) ) + 0.5 ) |
|