ID |
Date |
Author |
Subject |
|
32
|
Fri Mar 6 08:56:26 2026 |
FGI, SB | Run 65 | Am-241 calibration source. Towards DSSSD #2 (PreAmp B) upstream detector
Starting time: 08:41:21
Stop time :
Blocks :
The activity of th source is 0.1 uCi |
|
31
|
Fri Mar 6 08:55:16 2026 |
FGI, SB | Run 64 | LiF #7 sample in beam
Starting time: 15:11:10
Stop time : 08:14:22
Blocks : 138311
Flux monitor
Starting time : 16:07:05
Duration: 613911
IMPORTANT!!!
The clocks are not sincronize |
|
30
|
Thu Mar 5 09:25:45 2026 |
FGI, SB | Run 63 | LiF #8 sample in beam
Starting time: 08:34:15
Stop time : 14:53:02
Blocks : 55124
Flux monitor
Starting time : 09:30:14
Duration: 22727
IMPORTANT!!!
The clocks are not sincronize |
|
29
|
Thu Mar 5 09:24:21 2026 |
FGI, SB | Run62 | Gold + Mylar sample in beam
Starting time: 15:32:00
Stop time : 08:13:55
Blocks : 123407
Flux monitor
Starting time : 16:27:58
Duration: 60118
IMPORTANT!!!
The clocks are not sincronize |
|
28
|
Thu Mar 5 09:22:58 2026 |
FGI, SB | Run 61 | Boron-10 #3 sample in beam
Starting time: 08:49:16
Stop time : 15:07:34
Blocks : 44619
Flux monitor
Starting time : 09:45:09
Duration: 22696
IMPORTANT!!!
The clocks are not sincronize |
|
27
|
Thu Mar 5 09:21:10 2026 |
FGI, SB | Run 60 | NaCl #5 sample in beam
Starting time: 15:29:51
Stop time : 08:19:57
Blocks : 99805
Flux monitor
Starting time : 16:25:55
Duration: 60601
IMPORTANT!!!
The clocks are not sincronize |
|
26
|
Wed Mar 4 11:00:57 2026 |
CLW | 35Cl(n,p) proton peak, run with 3 MeV neutrons over night | Plot from Fran showing peak around expected proton energy in both detectors. Top half are strips of detector placed at 180degrees wrt neutron beam, bottom half 0 degrees. Hence, proton peak from bottom half should be at slightly higher energy.
|
|
25
|
Tue Mar 3 15:28:37 2026 |
FGI, SB, CLW | Run 59 | Before this run, we change the target for the neutron source. We are using a Triton target of ~200 ug/cm².
Starting time: 11:14:32
Stop: 15:03:16.
Flux monitor
Starting time: 12:10:44
Duration: 13723 |
|
24
|
Tue Mar 3 08:25:45 2026 |
FG,SB,CLW | Run 58 |
start: 08:24:49, 3.3.2026
stop: 10:13:25
blocks: 3062
Flux monitor
Start: 09:20:43
Duration: 6531
LiF no. 7 in beam |
|
23
|
Tue Mar 3 08:24:06 2026 |
FG,SB,CLW | Run 57 | Start: 15:45:30, 2.3. 2026
Stop: 07:57:05 3.3. 2026
Blocks: 25524
Flux monitor
Start: 16:41:41 of 2nd March
Duration: 58288
NaCl Target 5 |
|
22
|
Mon Mar 2 13:50:20 2026 |
FGI, TD, SB, CLW | Cabling | The cables are plug in this way.
Cable 0 connected to Preamp A, Positive output. (n+n side, toward the sample)
Cable 1 connected to Preamp A, Negative output. (p+n side, backward the sample)
Cable 2 connected to Preamp B, Positive output. (n+n side, toward the sample)
Cable 3 connected to Preamp B, Negative output. (p+n side, backward the sample)
Then, each cable goes to the jonction box:
Cable 0 goes to label unused. This goes to cable 5 and 6. The output from the RAL amplifier is cable 15 A/B
Cable 1 goes to label 6. This goes to cable 9 and 10. The output from the RAL amplifier is cable 14 A/B
Cable 2 goes to label 5. This goes to cable 4 and 8. The output from the RAL amplifier is cable 13 A/B
Cable 3 goes to label 4. This goes to cable 1 and 3. The output from the RAL amplifier is cable 12 A/B
From the RAL amplifier.
Cable 12 goes to Silena 9418 #1 0-15 channels.
Cable 13 goes to Silena 9418 #1 16-31 channels.
Cable 14 goes to Silena 9418 #2 0-15 channels.
Cable 15 goes to Silena 9418 #2 16-31 channels.
Therefore,
the Preamp B is plotted in Silena 9418 #1, n+n side channels 16-31 and p+n side channels 0-15.
the Preamp A is plotted in Silena 9418 #2, n+n side channels 16-31 and p+n side channels 0-15.
|
|
21
|
Mon Mar 2 13:24:11 2026 |
FG,SB,CLW | Run 56 |
start: 13:28:38, 2.3.2026
stop: 15:05:22, 2.3.2026
blocks: 2206
LiF no. 7 in beam |
|
20
|
Mon Mar 2 13:22:52 2026 |
FG,SB,CLW | Run 55 |
start: 10:14:0531 2.3.26
stop: 12:57:08 2.3.26
blocks: 3855
NaCl No. 4 |
|
19
|
Mon Mar 2 11:11:18 2026 |
FGI, TD, SB, CLW | Second configuration. | After the first weekend, we change the setup configuration. We removed the shadow cone, and we placed the chamber closer to the LiF target.
The voltage was increased upto 100V for both detectors, but there was a problem in DSSSD1. Therefore, The voltage was setup at 70V for DSSSD #1 and 100V for DSSSD #2.
The chamber was placed at 6.5 cm form the LiF target. That's mean that the sample is placed at 14.1 cm from the LiF target.
IMPORTANT!!!
The sample is toward detector DSSSD #2. So, the sample is placed at 2.5 cm from DSSSD #2 and 2.7 cm from DSSSD #1.
DSSSD #2 is the upstream detector and DSSSD #1 is the downstream detector. |
|
18
|
Mon Mar 2 10:39:30 2026 |
SW, TD, SB, CLW | Detector SetUp. First Configuration | The first sample on beam is the NaCl target #4. The shado cone was placed between the LiF target and the chamber.
The shadow cone was a cupper cilinder of 4cm diameter and 30 cm lenght, placed at 0.8 cm from the LiF target and 2.8 cm from the chamber. See first figure 1.
Therefore, the diameter of the chamber is 15cm. The sample (considering the center of the chamber as 0) it's place 1 mm misalignt farther from the beam. So, the distance between the LiF target and the sample is 41.2cm.
On the other hand, the distance between detectors is 5.2cm, and the sample is closer to the upstream detector. So, the sample is at 2.5cm from DSSSD #2 (Preamp B) and at 2.5cm from DSSSD #1 (Preamp A). See Figure 2.
DSSSD 2 goes to ADC9419 1; DSSSD 1 goes to ADC9418 2;
Au layer faces DSSSD 1. NaCl target 4.
Both detectors were setup at 70V on Friday 27th of February.
|
|
17
|
Mon Mar 2 10:38:42 2026 |
CLW | detector voltage change before Run 55 | preamp B detector (DSSSD 2) on 100 V, DSSSD 1 still on 70 |
|
16
|
Mon Mar 2 09:47:13 2026 |
CLW | Clock Synchronisation Edinburgh PC , Geel monitor PC | T=0: Edinburgh Time 9:39:00
T=1:40: Geel Time 10:37:00
--> T_diff Geel - Edinburgh = 10:35:20 - 9:39:00 = 56:20 |
|
15
|
Mon Mar 2 09:43:05 2026 |
FG,SB,CLW,TD | Run 54 |
start: 09:36:05 2.3.26
stop: 09:43:49 2.3.26
blocks: 14
Cu rod taken out, run in neutron beam with NaCl target. Distance chamber to target is 6.5 cm. Run stopped due to high trigger rate in channels 138,144. |
|
14
|
Sat Feb 28 12:09:56 2026 |
TD | Offline analysis data file R52 |
Offline data analysis of data file R52
c. 1h 2.25MeV neutrons from 10uA p+ + 410ug/cm2 LiF -> copper block -> sample #4 Mylar+NaCl+197Au
ADC data are offset corrected but not gain matched.
Attachments 1-2 - DSSSD#1 and DSSSD#2 ADC spectra (10keV/channel nominal)
Attachment 3 - ADC hit pattern (DSSSD#1 0-15 p+n/16-31 n+n, DSSSD#2 32-47 p+n/48-63 n+n)
Attachment 4 - energy (10keV/channel nominal) versus channel (DSSSD#1 0-15 p+n/16-31 n+n, DSSSD#2 32-47 p+n/48-63 n+n)
Attachment 5 - per DSSSD p+n junction energy - n+n Ohmic energy + 2048 (10keV/channel nominal) - with/without energy difference gates currently set to 1948-2148 (i.e.
non-
selective)
Attachment 6 - per DSSSD p+n junction energy versus n+n Ohmic energy (20keV/channel nominal) - with/without energy difference gates currently set to 1948-2148 (i.e.
non-selective)
Attachment 7 - scaler spectra (1000x rate updated every 60s)
Attachment 8 - sort program variables
Issues
From pulser tests and pulser walkthrough (R51) all channels are OK *except* channels 14, 40, 41 with no data
From data with beam (R52)
Channels 24-31 - little data - check RAL109 LLD?
Channel 23 - no ADC data => issue between preamp and Si wafer or RAL109 discriminator
Channel 36 - low amplitude ADC data => issue between preamp and Si wafer
Channel 58 - no ADC data => issue between preamp and Si wafer or RAL109 discriminator |
|
13
|
Sat Feb 28 09:20:14 2026 |
TD | MIDAS DAQ configuration |
MIDAS DAQ configuration files
/MIDAS/experiments/daq/VMEDataSources - attachment 1
/MIDAS/experiments/daq/MidasOptions - attachment 2
/MIDAS/experiments/daq/VMEConfigs/latest - attachment 3
/MIDAS/experiments/daq/VMESetups/latest - attachment 4
MIDAS Tape Server console ( /MIDAS/TapeServer/SunOS/master ) and MIDAS log (e.g. tail -f /MIDAS/log/27Feb26 ) - attachment 5
MIDAS DAQ configuration, Silena 9418/6V controls and CAEN V560 scaler - attachments 6-8 |
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