Versions Compared

Old Version 5

changes.mady.by.user Unknown User (bogaert)

Saved on

compared with

New Version 6

changes.mady.by.user Unknown User (bogaert)

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

 Runs

 Date

particle

energy

CU configuration

CU position

AD

notes

 1201

 11/8

e- 

 2.5

 BT1

 

 

 av rate 34 HZ, CU instant rate 500 hz. S0 counts 21k per spîll

 1202

 

 e-

 2.5

 BT1

 

 

 3 phasing errors for 30k events. run stopped due to beam off

1205


e-

1.




S0:14 k count per spill
HW trg: 700 count per spill
DAQ trg: 300 count per spill
beam divergence: 6.3mrad on XZ, 5mrad on YZ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 1203

 

 e-

0.5 

 

 

 

 S0 = 13k/spill, wrong focus setting 

 

 

 

 

 

 

 

 

 

Tagged photon runs

 Runs

 Date

particle

energy

IMagnet 

CU configuration

CU position

AD

notes

1176 

 

tagged g

3GeV

 600

BT1

0 degrees, center of tower 2

yes 

events in twr3?

 1177-1180

 

tagged g

e beam at 2.5GeV

 600

BT1

0 degrees, center of tower 2

yes

magnet ON, 25K evts per run 

 1206

 

 tagged gamma

e-  1GeV

 240

 

 

 

 S0:14k count per spill
HW trg: 100 count per spill
DAQ trg: 100 count per spill
Lot of 0 cluster in chamber 2 and 3, we need to tune the bending magnet and/or improve the veto to select a small spot.

 1207

 11/8

 

 

 

 

 

 

 idem with S1 in the trigger
this run is to see if the zero that we see is a trigger or magner problem:

  • it seem that it's a trigger issue: now the fraction of zero seems similar to what we saw in the other physics runs.
    S0: 14 k count
    HW & DAQ trg :20 counts

 1208

11/8 11h34

 

 e-
1 GeV

 240

 

 


   New trigger S3 in veto 
count per spill:
S0: 12k
HW: 50
DAQ: 60

The beam spot on the tagger chamber is ok. the nunber of 'zero cluster evts' is also resonable.
The intervention on the trigger logic actually fixed the problem.
This is a good run for analysis. Bravo Mazziotta!
|

 1209

 11/8
13h29 

 

 e-
1GeV

 

 

 

 

 Slits position changed from 51.5 to 52: S0 rate passed form 14 kCount to 20 kCount per spill
 


good tagged run with 1GeV beam.
trigger counts per spill (2 spill per cycle):
S0: 20k
HW: 80
DAQ: 70

after 3.5k event slits closed to 51.5.
.

around 30k : SYNCHRONIZATION LOST !
stopping the run, first 30000 events should well sycnhronized...
for the event for which the synchronization was lost the DeltaEventTime was 128s that is corresponding to the turnover of the 2nd GASU counter. ||
|
| |

1210 

 11/8

 

 

 

 

 

 

 Synchronized Tagged gamma with 1GeV electron beam, going for 70k to get all the statistic
+ beam intensity is very low : DAQ rate ~ 15events/spill and S0 ~ 2700events/spill
+ after 12k : we have 3 spills taking ~200 events per super cycle

 

 

 

 

 

 

 

 

 

Full-brem Photon runs

 Runs

 Date

particle

energy

 I(Magnet)

CU configuration

CU position

AD

notes

1183-1190

 8/8
9/8 

e+g

2.5

 600

BT1

0 degrees, center of tower 2

yes 

overall 2M evts  - (false report of 300 A for 1185 in elogBook)


 



 





 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

...

Runs

Date 

particle

energy

CU configuration

CU position

AD

notes

 1192, 1193

 9/8

 cosmic

 

 

 

 

 

 1194-1197

10/8 

 cosmic

 

 BT3

 

 

 

 

Sil Calibration runs

Runs

Date 

particle

energy

CU configuration

CU position

AD

notes

 4318

 11/8

 

 

 

 

 

 

 

Not to be used 

Runs

Date 

particle

energy

 IMagnet

CU configuration

CU position

AD

notes notes 

 1200  

 11/8

 e-

 2.5

 0

 

 

 

 ? Control Room ajustingSpill structure during run

 1203

  11/8

 e-

0.5 

  0

 

 

 

 S0 = 13k/spill, wrong focus setting

 1204

 11/8

 e-

 0.5

 0

 

 

 

9 mrad on XY 12 mrad on XZ