| ID |
Date |
Author |
Type |
test |
Category |
Subject |
|
Draft
|
Wed Apr 8 01:31:25 2026 |
AF | Runs | | General | run_0056 |
run control = 56
run data =/onlineNEDA_00/xData/hil099/run_0056_11-03-2023_23h26m10s
RU = 7.3 MB/s
LF = 3.5 MB/s
plunger:
plunger run = 1445
actual distance = 262.7 um
micrometer = 266.2 um
position = 30 um
voltage = 3.05 V
Beam dump: 0.75 nA
Colimator : 1.1 enA
stop: |
|
Draft
|
Wed Apr 8 10:50:22 2026 |
mgb | Runs | | General | Beam dump decreased 1.0 nA to 0.75 |
RUN CONTROL = 37
Data = /onlineNEDA_00/xData/hil099/run_0037_04-03-2023_22h56m17s/needleRU_i37_0037_0106.caendat
RU = 8.65 MB/s
LF = 4.11 MB/s
Plunger ;
Planger run = 745
Supposed Dist=240 um
Micrometer = 187.5 um
Position = 241.1 um
Actual distance = 240.6 um
Voltage = 2.715 V
Beam dumb = 0.75 nA
Collimeter =0.65 nA
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|
Draft
|
Thu Apr 9 15:07:01 2026 |
OST | Runs | | Beam | |
beam started 18:04. |
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Draft
|
Sat Apr 11 12:37:21 2026 |
MK | Runs | | General | |
run control = 51
run data = /onlineNEDA_00/xData/hil099/run_0051_09-03-2023_16h25m16s/needleRU_i51_0051_0002.caendat
RU = 6.43MB/s
LF = 3.49 MB/s
plunger:
plunger run = 896
actual distance = 532.1 um
supposed distance = 532.7 um
micrometer = 532.9 um
position = 299.4 um
voltage = 1.659 V
Beam dump: 1 nA
Colimator : 0.6 enA |
|
Draft
|
Sun Apr 12 03:42:35 2026 |
JD, DW | Runs | | General | New run started 43 |
| Quote: |
|
run control = 43
run data = /onlineNEDA_00/xData/hil099/run_0043_07-03-2023_00h50m41s/needleRU_i43_0043_0000.caendat
RU = 7.13 MB/s
LF = 3.7 MB/s
plunger:
plunger run = 254
actual distance = 282.7 um
supposed distance = 282.7 um
micrometer = 285.2 um
position = 50 um
voltage = 2.966 V
Beam dump = 1 nA
Collimater= 0.5 nA
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|
|
Draft
|
Sun Apr 12 15:20:15 2026 |
OST | Runs | | General | |
| Quote: |
|
RUN CONTROL = 41
Data =/onlineNEDA_00/xData/hil099/run_0041_06-03-2023_00h58m13s/needleRU_i41_0041_0050.caendat
RU = 8.13 MB/s
LF = 4.21 MB/s
Plunger ;
Plunger run = 98
Supposed Dist= 242.7 um
Micrometer = 245.8 um
Position = 9.7 um
Actual distance = 242.4 um
Voltage = 3.821 V
Beam dumb = 2 nA
Collimeter = 2 nA
|
|
|
Draft
|
Mon Apr 13 10:08:23 2026 |
OST | Runs | | General | |
| Quote: |
|
run control = 50
run data = /onlineNEDA_00/xData/hil099/run_0050_09-03-2023_00h50m28s/needleRU_i50_0050_0070.caendat
RU = 6.89 MB/s
LF = 3.42 MB/s
plunger:
plunger run = 847
actual distance = 532.2 um
supposed distance = 532.7 um
micrometer = 533.6 um
position = 299.5 um
voltage = 1.659 V
Beam dump: 1 nA
Colimator : 0.5 enA
|
|
|
Draft
|
Thu Apr 16 05:09:13 2026 |
EG | Runs | | | Beam intensity rapid increase |
| Quote: |
|
14:12 beam intensity instability. Rapid increase of beam intensity - twice the previous value. Returned to normal after 4 minutes.
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|
Draft
|
Fri Apr 17 18:27:19 2026 |
MK | Runs | | General | |
run control = 51
run data = /onlineNEDA_00/xData/hil099/run_0051_09-03-2023_16h25m16s/needleRU_i51_0051_0002.caendat
RU = 6.43MB/s
LF = 3.49 MB/s
plunger:
plunger run = 896
actual distance = 532.1 um
supposed distance = 532.7 um
micrometer = 532.9 um
position = 299.4 um
voltage = 1.659 V
Beam dump: 1 nA
Colimator : 0.6 enA |
|
Draft
|
Sat Apr 18 14:47:12 2026 |
A.T. | Runs | | General | Run 34 started |
| Quote: |
|
Run 34 Started (33 was stopped due to acquisition problems)
Plunger Run : 105
Supposed Distance = 10 um
position of the target = 10 um
micrometer = 12.7 um
Voltage = 7.9 V
Plunger off set 60 um
Which means we are running 60 um + 10 um (read from position window of plunger) = 70 um.
at the first 10 min det # 5 was switched off
Ge det # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
old scalers: 5 2.5 8 5 8.5 3 5 1.5 5 8.5 8.5 7.5 2.7 2.7 5 kHz
new (Grzes) 1.7 1 3.2 1.8 3.6 0.9 1.7 0.45 1.7 3.5 3.2 3.1 1. 1. 1.7 kHz
beam dump current 3nA
det # 5 scaler 7.7 kHz
stoppped 00:02 because beam current was reduced byu a factor of 2 (see note on the next run)
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|
21
|
Thu Mar 2 09:05:43 2023 |
DOD | Problems | | | Sulphur on aluminium fusion-evaporation reactions |
Using the data which we've sorted to date, I looked into the gamma-gamma coincidences and have identified a number of nuclei e.g. 50Cr, 52Mn, 55Fe which would be consistent with fusion-evaporation reactions involving the sulphur-32 projectiles and aluminium-27. Such reactions would yield a 59Cu comound system and these channels would be populated as a result of the evaporation of a combination of alphas, protons and neutrons.
These lines are intense and the conicdences are very clear and clean. I think this suggests that the beam is hitting some aluminium components within the plunger chamber. This could be the plunger vessel itself or the target frame perhaps.
There is another interesting observation: some of the identified transitions are emitted from levels which have sub-ps lifetimes. At this plunger distance, we might expect these lines to be fully Doppler shifted as they would decay in-flight well in advance of reaching the stopper. Yet, we observe these lines with their non-Doppler shifted energies suggesting that they are not being emitted in-flight but rather at rest. This might suggest that the 32S+27Al reactions are taking place within some thick piece of aluminium. Some of the lines show signs of having been shifted in energy to some extent which might indicate that not all of the ions are completely stopped. The observed lineshapes seem to be consistent with the short-lived states showing evidence of Doppler shift while the decay of the "longer-lived" states (~9 ps) are very sharp.
I haven't slept for about 24 hours so I may be talking absolute sh*te (famous Scottish word). |
|
43
|
Fri Mar 3 02:23:45 2023 |
GJ | Problems | | Software | builder gate, TS offsets |
Data from current run - 35, with limited beam current and rates - see a recent post by Güray.
BU level, so what we see in Greware (both online & nearline).
Attached is the fold of Germaniums.
It seems way too large to me.
We are summing up the events and then, not surprisingly, having rubbish gamma-gamma matrices.
The gate is 1500 ns, while Ge are not so far away from each other.
Any fixed time differences should be corrected with LF configuration.
Having all Ge, ACS, and Neda TS-aligned at LF level, BU will do a good job with a reasonable short gate.
We need channel-by-channel TS differences.
The data we took and we are taking now can be recovered in terms of this correction later on.
Marcin can build the events correctly from LF level.
Let's try to do so with as short gates as possible and see again the gamma-gamma matrix and neutron-gated g-g
matrix. |
| Attachment 1: run_0035_BU_lenghts.png
|
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|
62
|
Fri Mar 3 19:41:27 2023 |
IK | Problems | | Hardware | Beamdump readout issue Vol.2. |
Issue described in #61 continues to persist.
Beam stopped from 19:20 to 19:32, run 36 ongoing; MP, GJ, BS entering the experimental hall.
They changed the position of the grounding point on the chamber, moving it downstream after a fitting/joining part (A to B on the attached picture [artist: GJ]).
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| Attachment 1: 333626140_152534624340296_7230383118242592907_n.jpg
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|
90
|
Sun Mar 5 16:58:45 2023 |
MP | Problems | | Other | run 37 crashed, run 38 junk |
Run 37 stopped by itslelf at 15:43. This was noticed at about 16:10 by observing that grafana data rates do not change.
Stop at Run COntrol. LF looks disabled.
Attempt to restart normal way --> run 38 --> failed
Attempts to load topology failed.
Cannot any more refresh or load the Run COntrol web page (192.168.0.133:5000)
Grzes is trying to fix the problem remotely, while we are starting changing of the target....
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|
100
|
Mon Mar 6 05:15:43 2023 |
JD, DW | Problems | | Beam | No beam 05:10:00 |
No beam 05:10:00 |
|
107
|
Mon Mar 6 09:53:06 2023 |
OST | Problems | | Beam | Beam dump decreased 2.5 nA to 1.5 nA- stopped run 41 |
9:20 to 9:50 am beam current stayed 2.5 nA . After 9:50 am decrease 1.5 nA |
|
113
|
Mon Mar 6 17:19:24 2023 |
OST | Problems | | Beam | beam unstable and a little high |
16:30 beam increased 5 mb/s to 9 mb/s and stayed 1 hour 9 mb/s
17:10 beam fixed. stable |
|
127
|
Tue Mar 7 09:18:01 2023 |
OST | Problems | | Beam | run number 44 crashed and local filter turned red-but data saved |
9:08 local filter turned red. Both .caendat and LF .adf files still incrementing. Stopped run 44, started run 45, looks OK.
|
| Attachment 1: run_control_7mar2023_0910.png
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|
130
|
Tue Mar 7 09:41:44 2023 |
OST | Problems | | Software | number_Ge_15 dedector not taking data |
after run 45 I reset all spectrums and number_Ge_15 dedector not taking data.
i check the fans_monitor_scaler (EAGLE_array_monitor) monitor and number 15 Ge, number ACS 5 never change the color just staying white there is a problem.
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|
131
|
Tue Mar 7 09:56:07 2023 |
OST | Problems | | mechanics | Beam stopped and operators controlling number 15_Ge dedector. |
|