 Tue Aug 23 15:34:38 2016, Claudia, Leakage currents 23.08.16
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E = 0.03uA
dE = 0.04uA
PHDI = 0.09uA
- Monitor PHDI - increasing slowly... |
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Wed Aug 17 15:10:05 2016, Sarah, Leakage currents 12.08.16
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E = 0.03uA
dE = 0.04uA
PHDI = 0.06uA
- Monitor PHDI - increasing slowly... |
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Thu Aug 11 08:19:37 2016, Sarah, Leakage currents 10.8.16
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At lunchtime (12.45)
E = 0.03 uA
dE = 0.04 uA
PHDI = 0.06 uA |
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Fri Sep 9 10:01:18 2016, Sarah, Leakage currents 09.09.16
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EFED 0.04uA
DEED 0.05uA
PHDI 0.13uA |
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Tue Aug 9 15:57:52 2016, Sarah, Leakage currents 09.08.16
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Morning - 9am
E= 0.03uA
dE= 0.04uA
PHDI= 0.06uA
Afternoon - 4.30pm
E=0.03uA
dE= 0.03uA
PHDI=0.05uA
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Mon Aug 8 11:02:13 2016, Sarah, Leakage currents 08.08.16
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E 0.03 uA
dE 0.04 uA
PHDI 0.05 uA
Boron target 1 towards PHDI and Boron target 3 towards dE-E.
Mylar target gluing in electronics lab. |
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Fri Sep 2 12:01:57 2016, Sarah, Leakage currents 02.09.16
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E 0.03
dE 0.05
PHDI 0.12
Check on PHDI pulser width:
205170 (first in beam run) - 1.1% FWHM (at 8275 ch)
205439 (01/09/16) - 1.0% FWHM (at 8008 ch)
Seems to be holding up OK at present. |
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Wed Aug 3 14:48:09 2016, Sarah, Leakage currents 02.08 - 03.08
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02.08:
dE = 0.03 uA
E = 0.03 uA
PHDI = 0.04 uA
03.08:
dE = 0.03 uA
E 0.04 uA
PHDI = 0.04 uA |
Thu Oct 6 09:28:33 2022, Claudia, Items to be replaced for next run 
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Missing/broken items identified
- long rails for fixing chamber on support
- vacuum valve (ours is broken)
- at least 2 lemo - BNC converters
- short M3 screws (photo) |
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Thu May 26 09:20:32 2022, Nick / Claudia, Inventory of Items at n_TOF for (n,cp) experiments
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Detectors currently in the boxes:
2x MSL type W1(SS)-50, 2902-4 (53um), 2940-6 (55um)
1x MSL type W1(SS)-20 2837-33 (20um)
1x MSL type W1(DS?) 1230-10 (500 or 300 um)
1x MSL type W1(DS)-500 1194-9 (494um)
Three aluminium crates contain 26Al(n, alpha) kit from EAR2, and was in the barracks (building 6547) near detector lab by EAR1 entrance. A list is attached and photos can be found on Dropbox:
https://www.dropbox.com/sh/68k1xove2zr1bmj/AADKvN8wR_Ia2EwZMOXZqdMCa?dl=0 |
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Thu Aug 10 10:05:48 2023, CLW, Gafchromics Foil
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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) |
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Wed Jul 27 13:20:53 2016, Sarah, Gafchromic images 6x
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Mon Jun 23 09:36:32 2025, CLW, Expected Spectra for Li and B in a 50 um Si detector
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B looks as we are used to , Li tritons are now stopped in the detector and should appear around 2.8 MeV. |
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Mon Oct 2 08:53:06 2023, Emmanuel, Empty Frame
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An empty frame (on the top) was placed on Friday night. |
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Wed Aug 3 09:48:31 2016, Sarah, EFED10 alpha calibration checks
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EFED10: (1 bin = 2 ch)
Pulser (DAQ):
- Centroid = 5396.8(6) ch
- FWHM = 41(1) ch = 0.7%
Pulser (Maestro):
- Centroid = 4042 ch
- FWHM = 82 ch = 1.9%
148Gd (DAQ):
- Centroid = 2215(1) ch
- FWHM = 57(9) ch = 2.6%
148Gd (Maestro):
- Centroid = 1722 ch
- FWHM = 30 ch = 1.7%
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Fri Aug 11 16:50:58 2023, Nikolay Sosnin, EDET24
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After inserting aluminium target, previously-dead channel 24 on EDET was re-plugged into a 12-bit card SPD02872. It is the only EDET on 12-bit card, the rest are on 14-bit. From pulsers, there appears to be a 90 ns offset from this EDET to others, with EDET24 preceeding the rest. The last channel on 14-bit cards was broken, hence havng to use 12-bit. |
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Thu Sep 12 15:26:30 2024, Nick, EAR2 Periodic Noise
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Fri Aug 11 13:16:56 2023, Nikolay Sosnin, E Front Incorrect Cabling
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E front 2x16-way to 1x34-way IDC cable from the Junction Box to the IDC-Lemo 00 adaptor was found to be inserted upside-down - the 16-way IDC connectors did not have polarisation keys - meaning the E detector p+n junction strip signals collected with 26Al for the first night are not working. Signals from the dE p+n junction strips and E n+n Ohmic strips will be OK. The mistake occurred at the conclusion of the noise tests yesterday - see https://elog.ph.ed.ac.uk/nToF/52
The 2x16-way to 1x34-way IDC cable without polarisation keys has now been replaced.
Run 216417 and onwards have correct cabling. For runs before that, E back and dE are still reliable. |
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Tue Sep 5 16:09:45 2023, Emmanuel, Drop in gain for DEED 14
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Dear all,
There was an issue with one of the strips of the deltaE detector (DEED 14), for run216644. The gain dropped to almost a factor of 3. Find attached.
Somehow, it was fixed, but still lags, when compared to other strips of deltaE. This was tested for a more recent run, run216651. Find attached.
I also checked a bit older run (run216637) and they look similar.. Find attached. Maybe we should figure out if this will be a problem for the DEED14 strips.
NOTE: The plots have the run number at the top-center.
Emmanuel Odusina
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Sun Oct 9 20:57:54 2022, Nikolay Sosnin, Detectors in-beam, no target 12x
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After long beam-off, changed detector mount by moving it 2 cm forward into the beam, after removing LiF 3. |