EAGLE IRRADIATIONS EXTERNAL Analysis Students Workshop Shift Plans
GAMMA-ONLY NEEDLE NEEDI COULEX PLUNGER GENERAL
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  HIL099-134Sm, Page 3 of 14  ELOG logo
New entries since:Thu Jan 1 01:00:00 1970
ID Date Author Type test Category Subjectdown
  153   Wed Mar 8 02:45:53 2023 KS, KSzOther Beamincrease in Counting Rates

Since 2:32 increased counting rate observed:

Sinde 3:45 decrease to 1.5 kHz ch4.

run control = 48

/onlineNEDA_00/xData/hil099/run_0048_08-03-2023_01h08m57s/needleRU_i48_0048_0007.caendat
run data =

RU =  8.69 MB/s

LF =   3.79 MB/s

Eagle Rated ch4: around 2.3 kHz

plunger: (2:48)

plunger run = 514

actual distance =  382.7 um

supposed distance = 382.7 um

micrometer =   383.5 um

position =  149.8 um

voltage =  2.144 V

 

Beam dump =  1.5 nA

Collimater=  0.5 nA

  10   Wed Mar 1 11:52:48 2023 MPRuns  first beam
Operators tune beam on the target, collecting run 0023, trigger gg.
  121   Tue Mar 7 03:21:33 2023 JD, DWProblem Fixed Generaldaq crash

daq crashed at 02:59:00, resolved at 03:16:00
 

  228   Sat Mar 11 09:29:48 2023 EGOther  current exeriment parameters as requested in the manual for shifters

41_ge_single_theta 101,117,143 looks ok. No peakdeformation of 511, other gammas FWHM around half of that of511 - ok

ch4 in total rate EAGLE_0 arouns 2.1 kHz - ok

planger tollerace limits (green and blue horizontal markers) set far of the current distance, intantionally?

 

  34   Thu Mar 2 16:40:45 2023 MPRuns Generalchanging the plunger distance to minimum.
Run 31 was stopped, because plunger distance is reduced to the mininimal one.
It takes time, in the meantime, after some break, run 32  was started, with no beam.
  91   Sun Mar 5 22:32:56 2023 MPOther  change of the target

See pictures in the attachment:

1) stopper seen from the back (upstream view)

2) stopper  seen from the front (downstream view)

Mind the two small off-center dots. It is clear that the beam hits the edge of the frame.  This is possible because the 5 mm collimator has two small dots outside the 5 mm hole (the collimator  can be seen in the beam tube).

3) old target, upstream view

4)  new target, upstream view, after the stopper drove into it

5) new target, before it was mounted

6) the stopper, after the collision with the target. One of the visible rings is probably due to this collision, other traces probably reflect its complicated history earlier.

 

 

  3   Mon Feb 27 02:49:10 2023 GJRuns Generalcalibs - 2x 152Eu - run 0
Run number: 0
Trigger: g
Start time: Mon Feb 27 02:43:50 2023
Stop time: Mon Feb 27 03:21:01 2023

Two Eu sources hanging in more or less focus points of two partially open halves of EAGLE.
  244   Sun Mar 12 00:09:35 2023 AFProblem Fixed Softwarecaen_shifted correction in spy & greware
neda_psdcaen_positions.txt had weird values for three first detectors, especially neda_02.

It was:
NEDA_00_position_psdcaen    0
NEDA_01_position_psdcaen    0.22
NEDA_02_position_psdcaen    40

I (AF) make it:
NEDA_00_position_psdcaen    0.2
NEDA_01_position_psdcaen    0.2
NEDA_02_position_psdcaen    0.2
  43   Fri Mar 3 02:23:45 2023 GJProblems Softwarebuilder 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.
  200   Fri Mar 10 08:02:39 2023 AMProblems Beambigger data rate

rate of ch4 above 2kHz, too big beam intesivity, highier data rate from: 07:51
 

  113   Mon Mar 6 17:19:24 2023 OSTProblems Beambeam 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

  144   Tue Mar 7 20:42:03 2023 IPProblems Beambeam unstable

There was a problem with the beam from 20:19 to 20:30.

Now it is fine.

  156   Wed Mar 8 07:30:15 2023 KS, KSzProblems Beambeam unstable

The beam was unstable from 7:18 to 7:25.

  157   Wed Mar 8 07:57:05 2023 IKProblems Beambeam unstable

The beam was unstable from 7:55. Stabilized around 8:03.

Counting rates are higher, EAGLE det4 went to ~2.5kHZ from ~2kHz (attached).

According to the operator, a bit of a tuning was done, current is 1nA.

 

run control = 48

run data =  /onlineNEDA_00/xData/hil099/run_0048_08-03-2023_01h08m57s/needleRU_i48_0048_0041.caendat

RU =  10.4 MB/s

LF =   4.3 MB/s

 

 

 

 

  165   Wed Mar 8 14:47:34 2023 AMRuns Beambeam unstable

two drops in beam intesitivity at 14:33, 14:37 and 14:51

  162   Wed Mar 8 12:11:59 2023 IKProblem Fixed Generalbeam tuned

Beam tuning was made, focusing significantly improved.

 

Intensity:

beam dump: 0.9-1 nA,

collimator: 0.5 nA.

 

Rates:

RU =  8.2 MB/s

LF =   4.03 MB/s

EAGLE det4: 2.2 kHz

 

  32   Thu Mar 2 15:15:40 2023 mgbRuns Generalbeam stopped. eagle is opened and run 30 continues

Data

Position = 522.6

Supposed = 520

Plunger run = 32

Micrometer = 525.3

Run Data = /onlineNEDA_00/xData/hil099/run_0030_02-03-2023_11h18m31s/needleRU_i30_0030_0011.caendat

 

RU = 3.53 Mb/s

LF = 2.40 Mb/s

beam off and on and off. eagle is opened and run 30 continues

new cable is stucked

Cable test is going on

  185   Thu Mar 9 13:22:37 2023 OSTOther Beambeam stopped 13:21-13:24 for control
  54   Fri Mar 3 11:48:29 2023 IPRuns Generalbeam stopped

The beam is gone.

  219   Fri Mar 10 21:29:28 2023 IPRuns Beambeam start

the beam starts at 21:27.

But the operators are still working on focusing the beam.

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