ID |
Date |
Author |
Subject |
54
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Fri Aug 11 09:11:04 2023 |
Annie | Pulse Settings |
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Attachment 1: IMG_2908.JPG
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Attachment 2: IMG_2909.JPG
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Attachment 3: IMG_2910.JPG
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Attachment 4: IMG_2911.JPG
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53
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Fri Aug 11 08:41:31 2023 |
Annie | Al target & chamber set up |
Phtotos of the front & back of the Al target and what it looked like once mounted and in the chamber. |
Attachment 1: IMG_2860.JPG
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Attachment 2: IMG_2862.JPG
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Attachment 3: IMG_2867.JPG
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Attachment 4: IMG_2868.JPG
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Attachment 5: IMG_2874.JPG
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Attachment 6: IMG_2875.JPG
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Attachment 7: IMG_2877.JPG
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Attachment 8: IMG_2879.JPG
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Attachment 9: IMG_2880.JPG
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Attachment 10: IMG_2882.JPG
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Attachment 11: IMG_2884.JPG
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Attachment 12: IMG_2896.JPG
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Attachment 13: IMG_2897.JPG
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Attachment 14: IMG_2903.JPG
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Attachment 15: Al26_Target_Above.JPG
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52
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Thu Aug 10 16:11:57 2023 |
TD, NS, AR | Noise |
Observe c. 2mV p to p noise with DSO ( Z_in = 50 Ohm ) c. 60us period with HF structure. DSO connected to junction box via 34-way IDC - 16x Lemo-00 adaptor.
Origin of noise upstream of 4x34-way to 8x16-way Junction Box. Not microphonics from Edwards RV5 Rotary Pump.
No change observed with simple ground connections between NIM bin/+/-15V PSU/Junction Box and MSL type W1 preamplifier units/vacuum chamber/support assembly.
Estimate of electronic noise
Pulser BNC PB-5
Amplitude 0.5V
Attenuation x1
Decay time 1ms
Frequency 50Hz
Preamplifier RAL108
Output impedance 100 Ohm
Sensitivity 20mV/MeV ( into high Z load ), 6.7mV/MeV ( into 50 Ohm load )
Amplifier EG&G Ortec 571
Input terminated by 50 Ohm
Gain x1 (internal) x 1.0 (fine gain) x 50 (coarse gain ) = 50
Shaping time 0.5us
MCA Amptek 8000D
Input FSR 10V
12 bit ADC
Nominal gain = 6.7mV/MeV x 50 = 335mV/MeV
12 bit ADC input FSR = 10V / 0.335V/MeV = 29.85MeV FSR or 7.3keV/channel
dE p+n junction strip # 4 ( of 0-15 )
pulser peak centroid = 799.8 ch
pulser peak width = 7.8 ch FWHM = 57 keV FWHM
E p+n junction strip # 4 ( of 0-15 )
pulser peak centroid = 864.8ch
pulser peak width = 3.5 ch FWHM = 26 keV FWHM
E n+n Ohmic strip # 4 ( of 0-15 )
pulser peak centroid = 913.0 ch
pulser peak width = 5.3 ch FWHM = 39 keV FWHM
Noise estimates are probably accurate to c. 10% level. |
Attachment 1: 20230810_162959.JPG
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Attachment 2: IMG_2906.jpeg
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Attachment 3: 20230810_164219.JPG
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51
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Thu Aug 10 11:30:32 2023 |
Nikolay Sosnin | Silicons and LiF3+Gafchromic Target |
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Attachment 1: EDET_150um_Box.JPG
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Attachment 2: EDET_150um.JPG
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Attachment 3: EDET_ID.JPG
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Attachment 4: DEED_20um_Box.JPG
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Attachment 5: LiF3_Gafchrmoic_Target_Mounted.JPG
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Attachment 6: LiF3_Gafchromic_Side.JPG
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Attachment 7: LiF3_Gafchromic_Front.JPG
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Attachment 8: Detector_Mount_and_LiF3.JPG
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Attachment 9: Detectors_Mounting.JPG
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Attachment 10: Detectors_Mounted_DEED.JPG
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Attachment 11: Detectors_Mounted_EDET.JPG
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Attachment 12: Detectors_and_LiF3_Gafchrmoic_TestPosition.JPG
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Attachment 13: Detectors_and_LiF3_Gafchrmoic_TestPosition_Back.JPG
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Attachment 14: Detectors_and_LiF3_Gafchrmoic_TestPosition_Below.JPG
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Attachment 15: Detectors_and_LiF3_Gafchrmoic_TestPosition_Above.JPG
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Attachment 16: Detectors_and_LiF3_Gafchrmoic_TestPosition_Tilt.JPG
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Attachment 17: Detectors_and_LiF3_Gafchrmoic_TestPosition_Front.JPG
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Attachment 18: Assembly_Insert.JPG
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50
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Thu Aug 10 10:50:15 2023 |
Nikolay Sosnin | Al26 Chamber Cabling/Vacuum/NIM |
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Attachment 1: Vacuum_Reading.JPG
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Attachment 2: Pulser_Settings3.JPG
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Attachment 3: Pulser_Settings2.JPG
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Attachment 4: NIM_Bin.JPG
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Attachment 5: Currents.JPG
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Attachment 6: Amplifier_Settings.JPG
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Attachment 7: HV_EDET.JPG
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Attachment 8: HV_DEED.JPG
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Attachment 9: Pulser_Settings1.JPG
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Attachment 10: Cables_Full_View.JPG
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Attachment 11: Preamp_Cables.JPG
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Attachment 12: BNC_Converters.JPG
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Attachment 13: DAQ_Cable_Connection_BNC.JPG
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Attachment 14: Ribbon_Cables_DAQ.JPG
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Attachment 15: Ribbon_Cables_DAQ.JPG
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Attachment 16: NIM_Setup_Full.JPG
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Attachment 17: Vacuum_Pump.JPG
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Attachment 18: Vacuum_Pump_Exhaust.JPG
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Attachment 19: Vacuum_Pump_Attachment.JPG
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Attachment 20: Vacuum_Gauge.JPG
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Attachment 21: Vacuum_Valve_Lid.JPG
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Attachment 22: Ribbon_Cables_Back.JPG
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Attachment 23: Ribbon_Cables.JPG
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49
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Thu Aug 10 10:05:48 2023 |
CLW | Gafchromics Foil |
Gafchromics foil was mounted on empty brass frame back to back with Li sample
Neutron beam goes well through the sample. Centered ~1 cm from sample center. Conclusion: no changes needed (too risky to make it worse and it is ok now) |
Attachment 1: 20230809_165433.jpg
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Attachment 2: 20230810_085457.jpg
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Attachment 3: 20230809_165436.jpg
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48
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Thu Aug 10 10:04:13 2023 |
CLW | Photos inside chamber Al26 run Aug2023 |
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Attachment 1: 20230809_174847.jpg
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Attachment 2: 20230809_174905.jpg
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Attachment 3: 20230809_174943.jpg
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Attachment 4: Empty_Frame_Inside_Front.JPG
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Attachment 5: Empty_Frame_Inside_Sideview.JPG
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Attachment 6: Empty_Frame_Inside_Back.JPG
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Attachment 7: Assembly_Interior_Back.JPG
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Attachment 8: Assembly_Interior_Front.JPG
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47
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Thu Aug 10 09:55:50 2023 |
CLW | Photos of Chamber, Al26 Run Aug23 |
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Attachment 1: 20230809_120302.jpg
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Attachment 2: 20230809_120309.jpg
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Attachment 3: 20230809_153802.jpg
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Attachment 4: 20230809_153809.jpg
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Attachment 5: 20230809_153821.jpg
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Attachment 6: Beamline_Chamber_Spacing.JPG
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Attachment 7: Assembled_Setup_Back.JPG
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Attachment 8: Assembled_Setup_Back_Zoom.JPG
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Attachment 9: Final_Assembly_Front.JPG
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Attachment 10: Mounting_Bolts.JPG
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Attachment 11: Mounting_Clamps.JPG
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Attachment 12: EAR2_Pillars_Mount_Side.JPG
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Attachment 13: EAR2_Pillars_Mount_Front.JPG
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46
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Thu Aug 10 09:20:37 2023 |
CLW | Detector Signal Cabling Al26 Aug 2023 |
delta E detector Cabling
Lemo Box Output Number |
Signal Cable Bunker |
Patch Panel Number |
Signal Cable Rack Area |
FADC Number |
DAQ Channel |
0 |
72 |
2204803 |
9 |
02911 |
DEED-1 |
1 |
73 |
2204804 |
10 |
02911 |
DEED-2 |
2 |
74 |
2204805 |
11 |
02911 |
DEED-3 |
3 |
75 |
2204806 |
12 |
02911 |
DEED-4 |
4 |
76 |
2204807 |
13 |
02914 |
DEED-5 |
5 |
77 |
2204808 |
14 |
02914 |
DEED-6 |
6 |
80 |
2204809 |
15 |
02914 |
DEED-7 |
7 |
81 |
2204810 |
16 |
02914 |
DEED-8 |
8 |
82 |
2204811 |
17 |
02917 |
DEED-9 |
9 |
85 |
2204812 |
18 |
02917 |
DEED-10 |
10 |
86 |
2204813 |
19 |
02917 |
DEED-11 |
11 |
87 |
2204814 |
20 |
02917 |
DEED-12 |
12 |
88 |
2204815 |
21 |
02916 |
DEED-13 |
13 |
90 |
2204816 |
22 |
02916 |
DEED-14 |
14 |
95 |
2204817 |
23 |
02916 |
DEED-15 |
15 |
96 |
2204818 |
24 |
02916 |
DEED-16 |
E p side cabling
Lemo Box Output Number |
Signal Cable Bunker |
Patch Panel Number |
Signal Cable Rack Area |
FADC Number |
DAQ Channel |
0 |
97 |
2204819 |
25 |
4683 |
EDET-1 |
1 |
101 |
2204820 |
26 |
4683 |
EDET-2 |
2 |
103 |
2204821 |
27 |
4683 |
EDET-3 |
3 |
104 |
2204822 |
28 |
4683 |
EDET-4 |
4 |
105 |
2204823 |
29 |
4684 |
EDET-5 |
5 |
106 |
2204824 |
30 |
4684 |
EDET-6 |
6 |
107 |
2204825 |
31 |
4684 |
EDET-7 |
7 |
108 |
2204826 |
32 |
4684 |
EDET-8 |
8 |
109 |
2204827 |
33 |
4682 |
EDET-9 |
9 |
110 |
2204828 |
34 |
4677 |
EDET-10 |
10 |
111 |
2204829 |
35 |
4682 |
EDET-11 |
11 |
112 |
2204830 |
36 |
4682 |
EDET-12 |
12 |
113 |
2204831 |
37 |
4697 |
EDET-13 |
13 |
114 |
2204832 |
38 |
4697 |
EDET-14 |
14 |
116 |
2204833 |
39 |
4697 |
EDET-15 |
15 |
117 |
2204834 |
40 |
4697 |
EDET-16 |
E n side cabling
Lemo Box Output Number |
Signal Cable Bunker |
Patch Panel Number |
Signal Cable Rack Area |
FADC Number |
DAQ Channel |
0 |
118 |
2204835 |
41 |
5348? |
EDET-17 |
1 |
119 |
2204836 |
42 |
5348? |
EDET-18 |
2 |
120 |
2204837 |
43 |
5348? |
EDET-19 |
3 |
121 |
2204838 |
44 |
5348? |
EDET-20 |
4 |
123 |
2204839 |
45 |
4677 |
EDET-21 |
5 |
124 |
2204840 |
46 |
4677 |
EDET-22 |
6 |
125 |
2204841 |
47 |
4677 |
EDET-23 |
7 |
126 |
2204842 |
48 |
2872 |
EDET-24 |
8 |
127 |
2204843 |
49 |
4636 |
EDET-25 |
9 |
128 |
2204844 |
50 |
4636 |
EDET-26 |
10 |
129 |
2204845 |
51 |
4636 |
EDET-27 |
11 |
130 |
2204846 |
52 |
4636 |
EDET-28 |
12 |
131 |
2204847 |
53 |
4674 |
EDET-29 |
13 |
132 |
2204848 |
54 |
4674 |
EDET-30 |
14 |
133 |
2204849 |
55 |
4674 |
EDET-31 |
15 |
134 |
2204850 |
56 |
4674 |
EDET-32 |
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Attachment 1: 20230809_120804.jpg
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Attachment 2: 20230809_121357.jpg
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Attachment 3: 20230809_153703.jpg
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Attachment 4: 20230809_153720.jpg
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Attachment 5: 20230809_153730.jpg
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Attachment 6: 20230809_153744.jpg
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Attachment 7: 20230809_192718.jpg
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Attachment 8: 20230810_090445.jpg
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45
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Thu Aug 10 09:10:02 2023 |
CLW | Detector Setup Al26 Run 2023 |
dE Detector: W1-20 3186-9 20 um
E Detector: W1-150 3458-4 144 um
Voltages and Leakage Currents:
dE: 6 V, 0.02 muA
E: 50 V, 0.05 muA |
Attachment 1: 20230809_181749.jpg
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Attachment 2: 20230809_181758.jpg
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Attachment 3: 20230809_172545.jpg
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Attachment 4: 20230809_172442.jpg
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44
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Mon Jul 31 10:21:41 2023 |
Nikolay Sosnin | n_TOF Data and Filtering |
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Attachment 1: Al26_Filtering.pptx
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43
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Thu Jul 27 11:53:52 2023 |
TD | MSL type W1 detector data for 26Al(n,X) experiment EAR2, n_TOF |
MSL type W1(SS)-20
3186-9 20um Depletion voltage 3V Operating voltage 6V
3585-12 20um Depletion voltage 2V Operating voltage 4V
MSL type W1(DS)-150
3458-1 157um Depletion voltage 22V Operating voltage 52V
3458-4 144um Depletion voltage 18V Operating voltage 48V |
42
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Thu Jul 27 11:25:35 2023 |
Claudia | Al-26 planning meeting summary |
- Start 9th August, access to EAR-2 11 am earliest but can start in rack area before
- Setup to be used: 1 dE (16 strips, 20 um thickness) + 1 E (16x16 strips, 150 um thickness. We have a spare for each thickness
- Sample and detectors to be mounted on the same flange
Things to check:
- alignment with beam centre (lasers and/or gafchromics foils)
- is the setup stable to knockes, can all detector / sample positions be well reproduced when making changes
Once setup us completed:
- checks with pulser
- mounf LiF sample number 3 and run with neutron beam
- check that all strips have signals
- confirm shape of gamma flash and that short times can be anaysed in both detectors (~1.8 us after flash)
If everything working:
- measure LiF-3 and the switch to Al-26
- towards end of the run we can also measure B-3 and the empty brass frame (Frame without mylar)
- proton statistics: 1E17 LiF-3, 1F17 B-3, ~3E17 Empty, 5.5 E18 Al-26
Travel times
Nick: 8-16, Annie 8-12, Tom, 7 -?, Claudia, 8-10, Emmanuel asap until end of run
Measurement runs until Octover 2nd. Disassembly by Nick and Emmanuel.
additional trips during the measurement as required (if something breaks/fails etc. )
Attached: photos of previous setup
TO Do: MCA availability at nTOF for quick noise checks (Nick)
how many channels in 14 bit, how many 12 bit (Nick)
depletion voltages for detectors (Tom)
Register the eqipment at CERN as Edinburgh property (Claudia)
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Attachment 1: DSC00366.JPG
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Attachment 2: DSC00346.JPG
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41
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Mon Jul 3 13:01:30 2023 |
Emmanuel | Boxes for nTOF experiments to CERN |
Box 1
1. RC412 Cables
2. Screws and parts for rails
3. Small rails
Box 2
1. Vacuum valves
2. IDC cables
Box 3 (Detectors)
1. WI-20
3186-9
2. WI-150
3458-4
3. WI-150
3458-1
Box 4 (Detector)
1. WI-20
3485-12
*List
**We also have the tube for the long rails
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40
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Sun Oct 9 21:07:02 2022 |
Nikolay Sosnin | Boron Sample 3 Measurement |
21:15 Changed from detectors in-beam to boron-10 sample 3 in-beam (in-beam measurement got 1000 triggers, 500 of which were dedicated). The sample was mounted identically to LiF 3. An attempt was made to replace the 20-micron dE detector with a 50-micron one, but the screwholes on the 50-micron detector did not match the 300-micron E-detector ones and therefore could not be mounted. 20-micron detector was therefore re-attached. Planning to run for 12 hours with boron than dismount. |
Attachment 1: Voltage_dE4_Resize.jpg
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Attachment 2: Voltage_E4_Resize.jpg
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Attachment 3: E_dE_Position_Before_Boron_Resize.jpg
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Attachment 4: E_dE_Position_Boron_Above_Resize.jpg
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Attachment 5: E_dE_Position_Boron_Back_Resize.jpg
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Attachment 6: E_dE_Position_Boron_Resize.jpg
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Attachment 7: Boron_Sample_Rotation_Angle_Resize.jpg
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Attachment 8: Boron_Sample3_Target_View_Resize.jpg
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Attachment 9: Boron_Measurement_Chamber_Interior2_Resize.jpg
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Attachment 10: Boron_Mounted_Resize.jpg
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Attachment 11: Boron_Measurement_Chamber_Interior1_Resize.jpg
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Attachment 12: Boron_Sample3_Back_Resize.jpg
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Attachment 13: Boron_Sample3_Front_Resize.jpg
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Attachment 14: Boron_Sample3_InBeam_Resize.jpg
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38
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Sun Oct 9 20:57:54 2022 |
Nikolay Sosnin | Detectors in-beam, no target |
After long beam-off, changed detector mount by moving it 2 cm forward into the beam, after removing LiF 3. |
Attachment 1: Det_Holder_Default_Position_Resize.jpg
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Attachment 2: Detectors_in_Beam_CloseUp_Resize.jpg
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Attachment 3: Detectors_in_Beam_Resize.jpg
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Attachment 4: Voltage_E_InBeam_AfterNeutrons_Resize.jpg
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Attachment 5: Voltage_E_InBeam_BeforeNeutrons_Resize.jpg
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Attachment 6: Mounted_LiF3_Resize.jpg
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Attachment 7: Voltage_dE_InBeam_AfterNeutrons_Resize.jpg
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Attachment 8: Voltage_dE_InBeam_BeforeNeutrons_Resize.jpg
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Attachment 9: Gamma_Flash_InBeam_1_Resize.jpg
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Attachment 10: Gamma_Flash_InBeam_2_Resize.jpg
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Attachment 11: LiF3_Mount_Angle_View1_Resize.jpg
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Attachment 12: LiF3_Mount_Angle_View2_Resize.jpg
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37
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Sat Oct 8 11:57:36 2022 |
Nikolay Sosnin | Change of Detector-Target Separation |
Increased detector-target (LiF 3) separation by 1.5 cm. Had to replace the support strut under the detectors due to the previous one being fuly retracted even for minimal target-detector separation. This change may affect detector rotation relative to the target. |
Attachment 1: Positive_Pulser_Resize.jpg
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Attachment 2: Short_Det_Holder_In_Place_Resize.jpg
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Attachment 3: Short_Holder_In_Chamber_Resize.jpg
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Attachment 4: Initia_Det_Holder_Config_Resize.jpg
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Attachment 5: Negative_Pulser1_Resize.jpg
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Attachment 6: Negative_Pulser2_Resize.jpg
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Attachment 7: Negative_Pulser3_Resize.jpg
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Attachment 8: Negative_Pulser3_Resize.jpg
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Attachment 9: Negative_Pulser4_Resize.jpg
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Attachment 10: E_Voltage2_Resize.jpg
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Attachment 11: E_Voltage3_Resize.jpg
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Attachment 12: Initial_dE_LiF3_Distance_Resize.jpg
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Attachment 13: Initial_Holder_Back_View_Resize.jpg
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Attachment 14: Initial_Holder_Front_View_Resize.jpg
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Attachment 15: dE_Voltage2_Resize.jpg
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Attachment 16: dE_Voltage3_Resize.jpg
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Attachment 17: Det_Holder_Stand_Replacement_to_Short_Resize.jpg
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36
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Sat Oct 8 11:56:49 2022 |
Nikolay Sosnin | Silicon Strips of Concern |
DEED 6 and 9 no signal throughout the campaign.
EFED 27 high oscillations in baseline throughout the campaign. |
35
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Fri Oct 7 20:04:30 2022 |
Nikolay Sosnin | Change of Pulser Setting |
The pulser has been switched from triggering from beam trigger to running at a 10 Hz rate, and will now appear in random places in signal traces. Planned to run overnight measuring LiF3, switch to empty + detector in beam in the morning. |
34
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Fri Oct 7 17:17:08 2022 |
Nikolay Sosnin | Change of Pulser Delay |
Still using pulser triggered from protons. 12 microsecond delay from protons to gamma-flash + 11 microsecond delay from gamma flash to pulser. 20 mV pulser output into 50 ohm impedance (10 mV final output) of both polarities (using two pulsers, one NE pulser and one BNC PB5 pulser). Changed pulser setting to run with 11 microsecond delay for approx. 2 hour, then change to an overnight run with pulser running NOT triggered from beam. |