| |
ID |
Date |
Author |
Subject |
|
|
16
|
Sun Jul 31 15:56:32 2016 |
Sarah | DEED16 Alpha calibration checks (205169) |
***note that DEED 16 was on old sampling rate for 205168- so use next run, also DEED 9-12 not plugged in***
DEED16: (1 bin = 2 ch)
Pulser (DAQ):
- Centroid = 5347(3) ch
- FWHM = 89(7) ch = 1.7%
Pulser (Maestro):
- Centroid = 4279 ch
- FWHM = 166 ch = 3.9%
*** take the following with a pinch of salt- low stats (top of peak in DAQ = 4 counts)
148Gd (DAQ):
- Centroid = 1948 ch
- FWHM = 138 ch = 7%
148Gd (Maestro):
- Centroid = 1586 ch
- FWHM = 11 ch = 0.7% |
|
|
14
|
Sun Jul 31 14:32:34 2016 |
Sarah | DEED1 Alpha calibration checks (205168) |
DEED1: (rebin x2 -> 1 bin = 4 ch)
Pulser (DAQ):
- Centroid = 5000(1) ch
- FWHM = 71(5) ch = 1.4%
Pulser (Maestro):
- Centroid = 4008 ch
- FWHM = 148 ch = 4%
148Gd (DAQ):
- Centroid = 1880(1) ch
- FWHM = 89(2) ch = 4.7%
148Gd (Maestro):
- Centroid = 1524 ch
- FWHM = 67 ch = 4.4%
|
|
|
31
|
Thu Oct 6 11:07:47 2022 |
Nikolay Sosnin | Change of sample/Addition of pulser |
Changed from LiF 4 to LiF 3 after running with LiF 4 overnight (run title on n_TOF DAQ was not updated to refelect the change, and still says LiF 4, but the material setting of the run states correctly that hte run is with LiF 3).
Added pulser triggered from protons. 12 microsecond delay from protons to gamma-flash + 1.75 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). Planning torun with 1.75 microsecond delay for approx. 1 hour, change to 5 microsecond delay. |
|
|
35
|
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. |
|
|
33
|
Thu Oct 6 14:58:29 2022 |
Nikolay Sosnin | Change of Pulser Delay |
Still using pulser triggered from protons. 12 microsecond delay from protons to gamma-flash + 1.75 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 5 microsecond delay for approx. 1 hour, then change to 10 microsecond delay. |
|
|
34
|
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. |
|
|
37
|
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
|
|
| Attachment 2: Short_Det_Holder_In_Place_Resize.jpg
|
|
| Attachment 3: Short_Holder_In_Chamber_Resize.jpg
|
|
| Attachment 4: Initia_Det_Holder_Config_Resize.jpg
|
|
| Attachment 5: Negative_Pulser1_Resize.jpg
|
|
| Attachment 6: Negative_Pulser2_Resize.jpg
|
|
| Attachment 7: Negative_Pulser3_Resize.jpg
|
|
| Attachment 8: Negative_Pulser3_Resize.jpg
|
|
| Attachment 9: Negative_Pulser4_Resize.jpg
|
|
| Attachment 10: E_Voltage2_Resize.jpg
|
|
| Attachment 11: E_Voltage3_Resize.jpg
|
|
| Attachment 12: Initial_dE_LiF3_Distance_Resize.jpg
|
|
| Attachment 13: Initial_Holder_Back_View_Resize.jpg
|
|
| Attachment 14: Initial_Holder_Front_View_Resize.jpg
|
|
| Attachment 15: dE_Voltage2_Resize.jpg
|
|
| Attachment 16: dE_Voltage3_Resize.jpg
|
|
| Attachment 17: Det_Holder_Stand_Replacement_to_Short_Resize.jpg
|
|
|
|
41
|
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
|
|
|
92
|
Wed Jul 16 11:45:39 2025 |
Selin | Boron Spectra Update After Setting Change + Pulser Removed |
Uncalibrated amplitude spectra of Boron (run221188) after the settings were changed, the pulser was removed, and the threshold in the UserInput has been lowered. Both alphas can be seen in the front and back strips. The ratios between the alphas are similar for front (0.066) and back (0.063) strips.
1- Uncalibrated amplitude spectra of strip 2.
2- 1- Uncalibrated amplitude spectra of strip 19. |
| Attachment 1: B_Strip2_ded.png
|
|
| Attachment 2: B_Strip19_ded.png
|
|
|
|
40
|
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
|
|
| Attachment 2: Voltage_E4_Resize.jpg
|
|
| Attachment 3: E_dE_Position_Before_Boron_Resize.jpg
|
|
| Attachment 4: E_dE_Position_Boron_Above_Resize.jpg
|
|
| Attachment 5: E_dE_Position_Boron_Back_Resize.jpg
|
|
| Attachment 6: E_dE_Position_Boron_Resize.jpg
|
|
| Attachment 7: Boron_Sample_Rotation_Angle_Resize.jpg
|
|
| Attachment 8: Boron_Sample3_Target_View_Resize.jpg
|
|
| Attachment 9: Boron_Measurement_Chamber_Interior2_Resize.jpg
|
|
| Attachment 10: Boron_Mounted_Resize.jpg
|
|
| Attachment 11: Boron_Measurement_Chamber_Interior1_Resize.jpg
|
|
| Attachment 12: Boron_Sample3_Back_Resize.jpg
|
|
| Attachment 13: Boron_Sample3_Front_Resize.jpg
|
|
| Attachment 14: Boron_Sample3_InBeam_Resize.jpg
|
|
|
|
82
|
Tue Mar 18 13:28:30 2025 |
Emmanuel | B10 and LiF data with Fast Fourier Transform |
Attached is the B10 and LiF data with Fast Fourier Transform and varying time constants. |
| Attachment 1: B10.pdf
|
|
| Attachment 2: Li.pdf
|
|
|
|
32
|
Thu Oct 6 11:45:39 2022 |
Nikolay Sosnin | Assembly Setup Days 1 and 2 |
Photographs of assembly up to the first pulser test with LiF3. |
| Attachment 1: LiF4_Mounted_On_Trolley_Resize.jpg
|
|
| Attachment 2: Mounted_Detectors_Resize.jpg
|
|
| Attachment 3: Rail_Clamps_Resize.jpg
|
|
| Attachment 4: Target_Holder_Mount_Resize.jpg
|
|
| Attachment 5: Vacuum_Side_Resize.jpg
|
|
| Attachment 6: LiF4_Final_Position_Resize.jpg
|
|
| Attachment 7: LiF4_In_Chamber_Resize.jpg
|
|
| Attachment 8: LiF4_Mounted_2_Resize.jpg
|
|
| Attachment 9: LiF4_Mounted_Resize.jpg
|
|
| Attachment 10: Final_Readout_Connection_Both_Resize.jpg
|
|
| Attachment 11: Full_Assembly_Resize.jpg
|
|
| Attachment 12: Full_Assembly_Target_Holder_View_Resize.jpg
|
|
| Attachment 13: LiF3_Final_Position_Resize.jpg
|
|
| Attachment 14: LiF3_Holder_Resize.jpg
|
|
| Attachment 15: E_Box_Resize.jpg
|
|
| Attachment 16: E_Detector_Resize.jpg
|
|
| Attachment 17: E_Mounted_Resize.jpg
|
|
| Attachment 18: E_Voltage_Resize.jpg
|
|
| Attachment 19: dE_Box_Resize.jpg
|
|
| Attachment 20: dE_Detector_Resize.jpg
|
|
| Attachment 21: dE_Readout_Connection_Resize.jpg
|
|
| Attachment 22: dE_Voltage_Resize.jpg
|
|
| Attachment 23: Detector_Holder_Mount_Resize.jpg
|
|
| Attachment 24: Central_Chamber_Mounted_Rails_Resize.jpg
|
|
| Attachment 25: Chamber_Support_Resize.jpg
|
|
|
|
13
|
Sun Jul 31 13:43:56 2016 |
Sarah | Alpha spectra |
Pulser set to 100 pps.
Shaping amp:
Gain: 1x1.0x50
Tau: 2 us
Negative polarity.
|
| Attachment 1: DEED0_alpha_spec_pulser.Spe
|
$SPEC_ID:
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| Attachment 2: DEED5_alpha_spec_pulser.Spe
|
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| Attachment 3: DEED15_alpha_spec_pulser.Spe
|
$SPEC_ID:
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| Attachment 4: EFED9_alpha_spec_pulser.Spe
|
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| Attachment 5: PHDI_alpha_spec_pulser.Spe
|
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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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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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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 14: IMG_2903.JPG
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| Attachment 15: Al26_Target_Above.JPG
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73
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Mon Mar 25 12:57:30 2024 |
Clw | Adapters for ntof setup |
10 new Adapters for lemo to bnc on my desk |
| Attachment 1: 20240325_125536.jpg
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| Attachment 2: 20240325_125528.jpg
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76
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Thu Sep 12 11:07:29 2024 |
Nick | 40K Borrowed Items |
We borrowed from n_TOF:
1x O-ring for circular side-flanges on the chamber (the borrowed part has a small green marker cross on it)
10x LIMO-to-BNC connectors (BNC female) from electronics lab outside EAR1 |
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80
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Mon Sep 16 12:36:45 2024 |
TD | 34-way IDC to 37-way D connector ribbon cables |
The 2x sets of 34-way IDC to 37-way D connctor ribbon cables used at GSI for the two-alpha decay measurement have been located - see attachments 1-4.
They have been packed for shipment to CERN and delivered to stores for shipment. Awaiting quotation and P&M PO. |
| Attachment 1: 20240916_121057_(1).jpg
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.jpg.png "20240916_121057_(1).jpg")
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| Attachment 2: 20240916_121052_(1).jpg
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.jpg.png "20240916_121052_(1).jpg")
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| Attachment 3: 20240916_121047_(1).jpg
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.jpg.png "20240916_121047_(1).jpg")
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| Attachment 4: 20240916_121003_(1).jpg
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.jpg.png "20240916_121003_(1).jpg")
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61
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Sat Aug 12 09:24:19 2023 |
Nikolay Sosnin | 26Al Protons |
Here is a Google spreadsheet for counting protons for the runs:
https://docs.google.com/spreadsheets/d/1INX8G9GAu-M70SdZdz55qXnMZNXKXLW7xfFH-eaLuQw/edit?usp=sharing |