Runs Digest

 0.5 GeV

  20k (1204)

275 k (1244-1258)

 1 GeV

 20k (1205)

125 k (1208-1210)

 1.5 GeV

50 k(1332, 1334)

 2.5 GeV

60k (1201-1202 )

 2,5 M (1181-1190)

100 k (1177-1180)

 0.5

  125k(1295, 1297-1300)
+ 60k(1303-1305)

 1. GeV

 100k (1220)

105 k (1214-1217)
+50 k(1310-1311)

1.5 GeV 

 2.5

 2.5 M(1223-1231)

 105k (1233-1237)

0.5 

 75 k+85 k =160 k
(1287_1289)(1291-1294)

 1.

 100k (1276-1279)
50k(1308-1309)

 1.5

 2.5

200k (1262-1271)

 100k (1272-1275)

 0.5

35k(1329-1330)

 1.

50K (1319-1320)
50k (1327-1328) 

 2.5

 2Mo (1312-1318)

 1201

 11/8

e- 

 2.5

 BT1

 0°

 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

 1204

 11/8

 e-

 0.5

 20k

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

 1218-1219

11/08 
21h43 

 e-

 1.

 30° (x,y,z)=(200,13.2,-48)

no 

 Accidentally started runs in synchronized Run Control. These were automatically aborted by the program.

 1220

 22h06

 e-

1. 

BT1 

idem 

 No

 100K, S0 new trigger, S4 off

 1221

 22h20

 e-

 1.

BT1 

Idem 

 YES

 Refrence point before changing momentum

 1239

 12/08
11:02 

 e-

 .5

 idem

 500 MeV electron with magnet off to check dump position with electron beam.9K

 1240

 .5

 idem

 500 MeV electron with magnet off to check dump position with electron beam.

 1259

 12/8
21:17

 e'

 1.

 1. Gev with magnet off

 1260

 12/8
21:34 

2.5 

magnet off, 2.5 GeV electrons to check beam and CU positions

 1261

 12/8
21:53 

 2.5

 Magnet Off
XY table has been moved few centimeters

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

  idem

 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

 tagged gamma

  240

  idem

 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. 

 1208

11/8 11h34

 tagged gamma

 e-
1 GeV

 240

  idem

yes

  New trigger S3 in veto  - 25k

 1209

 11/8
13h29 

 tagged gamma

 e-
1GeV

 240

 idem

 yes and no

around 30k : SYNCHRONIZATION LOST !
stopping the run, first 30000 events should well sycnhronized...  

1210 

 11/8
16h34 

 tagged gamma

 e-
1GeV 

 240

 idem

 yes

 Synchronized Tagged gamma with 1GeV electron beam, going for 70k to get all the statistic : 100Kevents
(+25 k from 1208 this cpunt is not taken into account in the eloogbook)

 1211-1213

 11/8

  Tagged

 1 GeV

180-240

  BT1

 30° (x,y,z)=(200,13.2,-48)

 various Magnet currents for setting up

 1214

 11/8

 Tagged

 e 1 GeV

 240

 BT1

 30° (x,y,z)=(200,13.2,-48)

  25k

 1215

 Tagged

 e 1GeV

 240

 BT1

 idem

 25k

 1216

 Tagged

 e 1 GeV

 240

 BT1

 idem

 25K

 1217

 11/8
21h22 

 Tagged

 e- 1 GeV

 240

 BT1

 idem

 30k
No spill during 4 minute

 1232

 12/08

 Tagged

 e- 2.5 GeV

 600

  BT1

 30° (x,y,z)=(200,13.2,-48)

 Not to be used , S4 not in the Trigger

 1233-1237

12/8 
7:21-9:36 

 Tagged

 e- 2.5

 600

 BT1

 idem

 1242

 12/8
11:45 

 e- 0.5 GeV

 100

  0 degrees, center of tower 2

 GeometryVerifiation

1243 

Tagged 

  e- 0.5 GeV

idem 

  0 degrees, center of tower 2

 yes

 rate too low

 1244-1245

12/08
12:44 13:35 

 Tagged

  e- 0.5 GeV

 120

  0 degrees, center of tower 2

 yes

 1246-1250

13:57 

 Tagged

  e- 0.5 GeV

120

  0 degrees, center of tower 2

 yes and no

 Sync lost after 6476 evts

1253-1258 

 tagged

e 0.5gev

 120

  0 degrees, center of tower 2

 yes

1272

13/8
3:52 

Tagged

e 2.5 GeV

600

48°

 Table moved to 48 deg, in order to allow full calrecon

 1273-1275

 13/8

Tagged 

e 2.5 GeV 

600 

 48°

 table@(-50,12.3,-48, 48deg)

 1276-1279

 13/8

 Tagged

 e 1GeV

 240

 48

idem 

 1287-1289

 13/8
11:07-12:41 

 Tagged

 e 0.5

 120

 48°

 Table(-50,12.3,-48, 48deg)
Trigger S0- S2- S4 -veto Sh - veto S3 - C1 - C2

 1290

 Junk

 1291-1294

 13/8
11:07-12:41 

 Tagged

 e 0.5

 120

 48°

  85 k

 1295,

 13/8
16:22

 Tagged

 e 0.5

120 

 30 °

25k 

 1297-1300

 13/8
18:11-19:10

 Tagged

 ie 0.5

 idem

 30°

  100 k

 1303

 13/8

 Tagged

 e 0.5

 idem

 30°

 25k

 1304

 13/8

 Tagged

e 0.5 

 120

 30°

 12 k . Rinsing number of events out of Sync

 1305

13/8 

 Tagged

 e 0.5

 120

30°

 25k

 1308-1309

 14/8
3:13 

 Tagged

e 1GeV 

 240

48° 

50K
in previous run 1307, Moved tile 4 (attached to GAFE 7) from on top of tracker tower to the +X side of the CU, at the base of the tower
This position corresponds to the tile 330 in the LAT.

 1310-1311

14/8 

Tagged 

e 1 GeV 

240 

30° 

50k 

 1319-1320

 Tagged

 1 GeV

240 

Pos 4, 145° 

 Yes 

 50k. 

1321

14/8 

idem 

 Yes and no

 sync lost after ??

 1327-1328

14/8 

Tagged 

 1 GeV

240 

 idem

Yes 

50k 

 1329-1330

 14/8
12:16 

Tagged 

 0.5 GeV

120 

 Pos 4, 145°

 yes

35k 

 1331

 1.5 GeV

360 

Pos 1, 0°

 No

 test beam position, no sync

 1332

14:27 

Tagged 

1.5 GeV 

360 

Pos 1, 0° 

Yes

 25k

 1333

 Tagged

1.5 

360 

same 

 yes and no

 no sync after <3600 evts

 1334-1335

14/8
16:12

 Tagged

 1.5 GeV

360 

Same 

 yes

50 k

 1336, 1337

 same

sync lost afyer 1733 and 1280 evts 

 1338

 same

25k 

 1339-1342

 Pos 2

 100k

 1343-1346

1181-1190

 8/8
9/8 

e+g

2.5

 600

BT1

Pos 1 : 0 degrees, center of tower 2

no

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

1222

 11/8

  2.5 GeV

 0

Pos 2 : 30° (x,y,z)=(200,13.2,-48

yes

check beam position

 1223-1231

12/8 

e+g 

2.5 GeV 

 600

 BT1

idem 

 no

 rate stable after adjustement in run 1223
2.5 Mevents 

 1262-1271

 13/8
<3:02 

 e+g

 2.5

 600

  pos 3 : 50°

 1312-1318

 14/8

 2.5

600 

Pos 4 : 145 ° 

  2 Mevents

 1148-1164; 1166-1169

 8/8

e beam

various

BT1

0 degrees, various positions to align with tagger

yes

many different configurations, for expert only

 1170

e beam

1.5

BT1

0 degrees, center of tower 2

 yes

 dump in place, slits at 51.5

 1171

e beam

1.25 

BT1

0 degrees, center of tower 2

 yes

magnet current 600A, direct tagger calibration

 1172

e beam

1.125

BT1

0 degrees, center of tower 2

 yes

magnet current 600A, direct tagger calibration-NOT Synchronised

 1173

e beam

 1.375

BT1

0 degrees, center of tower 2

 yes

magnet current 600A, direct tagger calibration, slits reduce to 51

 1174

 8/8

e beam

1.125 

 BT1

0 degrees, center of tower 2

yes

magnet current 600A, direct tagger calibration

1282

13/8

e

BT1

48°,

Test - - Tagger calibration
Trigger is standard : S0.S2.S4.C1.C2.veto(S3+Sh)
Magnet Current set to 300A to shoot the beam directly in the Tagger.
300A is not enough trying to go up to 320A and then to 350A and then to 400A
400A is OK, Stopping run and start the Good On

 1283

 13/8

 e

 1 eEV

 BT1

 400 A

 1284

 13/8

 e

 0.75

 BT1

 330 A Synchronization Lost from the beginning...

 1285

 13/8

 e

0.75 GeV

BT1 

 Magnet Current = 330A
All 4 Si tagger chamber are fully populated.

 1286

13/8 

e 

.5 

 Magnet current @ 120 A
Pressure of C1 = 0.9 bars, C2=0.97 bars
Beam shut down after 18553 events

 1165

 8/8

 BT22(S3 only)

 pedestal

 1191

 9/8 8h51

-

-

 BT22 (S3 only)

-

-

monitor pedestal shift

 1198

 10/8

 BT22

 pedestal T ~22.3C

 1201

 11/8

 BT22

 Pedestal T~ ?

 1281

 13/8

 Pedestal- Trigger is now only S0 and the beam is off...have only muons deviated by the magnet.
We used to trigger on S3 when it was out of the beam, but now it's on the beam line, so we had to find a new strategy !
Average Rate 26Hz

 1348

 14/8
21:26 

BT 22 

 5k

 1192, 1193

 9/8

 cosmic

 1194-1197

10/8 

 cosmic

 BT3

 4318

 11/8

 1307

 muons to check light leak

 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

 1238

 12/8

 Software test

 1241

 12/8

 Software test

 1280

 13/8

 Test run for CU CAL pedestals - JUNK

 1296

 Junk

 1301-1302

 Junk

1322-1326

 junk

 1347

 first run to prepare positron setting of tonight
Turn Off Magnet and Move table to position (-50, 0, 550, -45degree)

 1349-1354

 to check a lead brick position that should simulate the MMS.

• we start with 240 A that is too much: the beam miss the lead and enter the CU side.
• second setting is 200A, it seems better. let's scan more current to be sure.
• magnet 160 A, beam is bent too much... etc..