| ID |
Date |
Author |
Type |
test |
Category |
Subject |
|
40
|
Fri Mar 3 00:09:19 2023 |
MP, AT | Runs | | | run 35 |
Started after beam current was reduced by a factor of 2
plunger run # 116
Earlier: CUP#6 100 enA
Now: CUP#6 50eNA
Beam dump 1.8 enA
Collimator 0.8 enA
The operator is asked to keep the beam dump current not larger than the present value.
Supposed Distance = 10 um
position of the target = 10 um
micrometer = 11.7 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.
Observed that detectors at theta 143 degrees count most. Is this because they see beam dump? |
|
41
|
Fri Mar 3 01:15:27 2023 |
mgb | Runs | | General | |
plunger run # 126
Earlier: CUP#6 100 enA
Now: CUP#6 50eNA
Beam dump 2.3 enA
Collimator 1.0 enA
RU : 5.44 MB/s
LF : 8.40 MB/s
Supposed Distance = 10 um
position of the target = 10.9 um
micrometer = 10.3 um
Voltage = 7.896 V
Plunger off set 60 um
Which means we are running 60 um + 10 um (read from position window of plunger) = 70 um. |
|
42
|
Fri Mar 3 02:20:46 2023 |
mgb | Runs | | General | |
plunger run # 137
Beam dump 2.5 enA
Collimator 1.0 enA
02:21 /onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0010.caendat
RU : 4.70 MB/s
LF : 7.92 MB/s
Supposed Distance = 10 um
position of the target = 10.7 um
micrometer = 9.8 um
Voltage = 7.89 V
Plunger off set 60 um
Which means we are running 60 um + 10 um (read from position window of plunger) = 70 um. |
|
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. |
|
44
|
Fri Mar 3 03:19:34 2023 |
mgb | Runs | | General | |
plunger run # 147
Beam dump 2.5 enA
Collimator 0.9 enA
Run Data = /onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0014.caendat
RU : 4.90 MB/s
LF : 8.07 MB/s
Supposed Distance = 10 um
position of the target = 10.5 um
micrometer = 9.2 um
Voltage = 7.93 V
Plunger off set 60 um
Which means we are running 60 um + 10 um (read from position window of plunger) = 70 um. |
|
45
|
Fri Mar 3 04:15:32 2023 |
mgb | Runs | | General | |
plunger run # 157
Beam dump 2.5 enA
Collimator 1.0 enA
Run Data = /onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0018.caendat
RU : 4.79 MB/s
LF : 7.69 MB/s
Supposed Distance = 10 um
position of the target = 10.2 um
micrometer = 8.9 um
Voltage = 7.94 V
Plunger off set 60 um
Which means we are running 60 um + 10 um (read from position window of plunger) = 70 um. |
|
46
|
Fri Mar 3 05:18:35 2023 |
OST | Runs | | General | |
plunger run # 167
Beam dump 2.5 enA
Collimator 1.0 enA
Run Data =/onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0022.caendat
RU : 4.90 MB/s
LF : 8.01 MB/s
Supposed Distance = 10 um
position of the target = 10.2 um
micrometer = 8.8 um
Voltage = 7.941 V
nothing has changed. the situation is stable. |
|
47
|
Fri Mar 3 06:24:03 2023 |
OST | Runs | | General | |
plunger run # 178
Beam dump 2.5 enA
Collimator 0.9 enA
Run Data =/onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0027.caendat
RU : 4.65 MB/s
LF : 7.52 MB/s
Supposed Distance = 10 um
position of the target = 10.1 um
micrometer = 8.7 um
Voltage = 7.97 V
nothing has changed. the situation is stable. |
|
48
|
Fri Mar 3 07:32:28 2023 |
OST | Runs | | General | |
plunger run # 188
Beam dump 2.5 enA
Collimator 0.8 enA
Run Data = /onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0030.caendat
RU : 4.15 MB/s
LF : 7.69 MB/s
Supposed Distance = 10 um
position of the target = 10.2 um
micrometer = 9 um
Voltage = 8.964 V
Readout data decreased 5 mb/s to 4 mb/s during 6:30 to 7:30 am. slowly returning to normal value
|
|
49
|
Fri Mar 3 08:20:13 2023 |
KWL | Runs | | General | |
plunger run # 196
Beam dump 1 enA (given by operators) * 7 (following entry ID#39) = 7 enA
Collimator 0.75 enA
Run Data =/onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0033.caendat
RU : 4.10 MB/s
LF : 7.48 MB/s
Supposed Distance = 10 um
position of the target = 10.2 um
micrometer = 9 um
Voltage = 7.94 V |
|
50
|
Fri Mar 3 09:30:15 2023 |
IP. KWL | Runs | | General | |
plunger run # 208
Beam dump 0.75 enA (given by operators) * 7 (following entry ID#39) = 5.25 enA
Collimator 0.75 enA
Run Data =/onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0037.caendat
RU : 3.85 MB/s
LF : 7,29 MB/s
Supposed Distance = 10 um
position of the target = 10.2 um
micrometer = 9.3 um
Voltage = 7.93 V |
|
51
|
Fri Mar 3 10:09:20 2023 |
IP. KWL | Runs | | General | beam intensity decreased to 0.3 enA (at beam dump) on our request |
// we noticed yesterday that GE at 143 degrees counts more than those placed at 117 and 101. The 511 keV line (+ background) is much more pronounced for Ge at 143 degrees. To investigate this issue we decreased the beam intensity to 0.3 enA ( value given by operators at the beam dump ).
Conclusion - decrease of the beam intensity does not explain above observations (se attached figs)
plunger run # 216
Beam dump 0.3 enA (given by operators) * 7 (following entry ID#39) = 2.1 enA
Collimator enA
Run Data =/onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0040.caendat
RU : 2.15 MB/s
LF : 5.60 MB/s
Supposed Distance = 10 um
position of the target = 10.6 um
micrometer = 8.8 um
Voltage = 7.8 V |
|
52
|
Fri Mar 3 10:21:18 2023 |
IP. KWL | Runs | | General | beam intensity back to 1.25 enA at the beam dump |
we increased beam intensity to 1.25 enA (readout at the beam dump) |
|
53
|
Fri Mar 3 11:37:25 2023 |
IP | Runs | | General | |
plunger run # 230
Beam dump 1.2 enA (given by operators) * 7 (following entry ID#39) = 8.4 enA
Collimator 0.6 enA
Run Data =/onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0047.caendat
RU : 5.88 MB/s
LF : 8.35 MB/s
Supposed Distance = 10 um
position of the target = 10.2 um
micrometer = 8.8 um
Voltage = 7.94 V |
|
54
|
Fri Mar 3 11:48:29 2023 |
IP | Runs | | General | beam stopped |
The beam is gone. |
|
55
|
Fri Mar 3 12:11:24 2023 |
IP | Runs | | General | |
the beam comes back. |
|
56
|
Fri Mar 3 13:43:56 2023 |
IP. KWL | Runs | | | 511 annihilation and 279 Au lines in Ge rings |
The counting rate in 511 keV line for sum of the Ge detectors placed at 101, 117 and 143 degrees (with approved ACS). The largest intensity is visible for Ge at 143 degrees, lowest for 101 deg.
=============================== RING 101
Integration in spectrum user_ge_ring101_acceptedACS_clone.spc
RESULT : 3895
=============================== RING 117
Integration in spectrum user_ge_ring117_acceptedACS.spc
RESULT : 9392
=============================== RING 143
Integration in spectrum user_ge_ring143_acceptedACS.spc
RESULT : 15767
The Coulex of 197Au (279.5 keV ) line is visible in all rings with a comparable intensity:
=============================== RING 101
Integration in spectrum user_ge_ring101_acceptedACS_clone.spc
RESULT : 12491
=============================== RING 117
Integration in spectrum user_ge_ring117_acceptedACS.spc
RESULT : 11443
===============================RING 143
Integration in spectrum user_ge_ring143_acceptedACS.spc
RESULT : 10460
|
|
57
|
Fri Mar 3 13:54:41 2023 |
IP. KWL | Runs | | General | beam energy measurement |
beam stop due to the beam energy measurement
The beam energy: ~145 MeV |
|
58
|
Fri Mar 3 14:22:12 2023 |
IP | Runs | | General | |
the beam comes back. The run 35 is still going.
plunger run # 257
Beam dump .... enA (given by operators) * 7 (following entry ID#39) = ... enA
Collimator .... enA
Run Data = /onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0059.caendat
RU : 6.18 MB/s
LF : 8.44 MB/s
Supposed Distance = 10 um
position of the target = 10.2 um
micrometer = 8.8 um
Voltage = 7.94 V
|
|
59
|
Fri Mar 3 15:04:33 2023 |
KWL | Other | | General | run 35 stopped |
Run 35 stopped. An attempt to check if we can get 5 MeV higher beam energy. |