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User name suleiman
Log entry time 13:32:12 on November 7,2002
Entry number 89790
keyword=Summary of June Lumi Studies
June 02
Lumi Test:
- The frame is 7 meters downstream the target.
Length: Left-Right= 30 inches
Top-Bottom= 29 inches
- Average Front Window thickness = 5 mil
- Average Back Window thickness = 5 mil
- Lumi1 is installed under the beamline.
- lumi1 goes into ADC1 chan1. Beamline Crate HV Slot 1 chan 11.
C.H. Patch panel Signal 19
June 26, 2002
Beam Energy: 4712.9 MeV, 100 uA on 15 cm LD2. INTEG_TIME=7000
Raster size: Size x*y (mm*mm) 1.7*2.0 (CodaRunID=1819)
Run# Start Stop PMT1-HV
----- ------ ----- --------
1254 07:51 08:05 -500
1255 08:32 08:46 -550
1256 08:50 09:04 -600
1257 09:05 09:20 -650
1258 09:21 09:36 -700
1259 09:38 09:52 -725
1260 09:54 10:08 -675
- lumi1 goes into ADC1 chan2
1261 10:13 10:28 -675
- lumi1 goes into ADC1 chan3
1262 10:28 10:43 -675
- lumi1 goes into ADC1 chan4
1263 10:44 10:58 -675
- lumi1 goes into ADC1 chan1
1264 14:00 14:16 -675
1265 15:25 15:41 -675
- Instead of the twin-ax BNC adopter, use the batch panel
1266 15:52 16:07 -675
-------------------------------
Thursday June 27, 2002
Beam Energy: 4712.9 MeV, 100 uA on 15 cm LD2.
1268 07:45 07:59 -675
1269 08:27 09:04 -675 (I_Leakage = -311 uA)
PMT HV resistance= 2.187M ohm.
1270 09:07 09:26 -600 (I_Leakage = -276 uA)
1271 09:32 09:56 -750 (I_Leakage = -346 uA)
1272 10:09 10:23 -675 (I_Leakage = -311 uA)
1273 13:21 13:26 -800 Ia1=-17.3 (I_Leakage = -370 uA)
1274 13:34 14:26 -675 Ia1= -3.3 (I_Leakage = -310 uA)
[PZT and IA feedback tests]
1285 22:31 22:44 -675 Ia1=-2.9
Raster size: Size x*y (mm*mm) 1.7*2.0 (CodaRunID=1877)
1290 and 1291: 9-foil optics C target, INTEG_TIME=7000
Raster OFF, 100 uA
-------------------------------
Friday June 28, 2002
[PZT and IA feedback tests]
1304 LD2 INTEG_TIME=4000, OVERSAMPLE=3
Beam Energy: 4712.9 MeV, 100 uA on 15 cm LH2.
INTEG_TIME=7000, OVERSAMPLE=1
Raster size: Size x*y (mm*mm) 1.7*2.0 (CodaRunID=1878)
1305 07:41 08:04 -675 Ia1=-2.0
End of experiment: d(e,e'p)
-----------------------------------------------------------
Friday June 28, 2002
- RCS test
Beam Energy: 2848.04 MeV, 50 uA on 15 cm LH2. INTEG_TIME=7000
Raster size: Size x*y (mm*mm) 2.5*0.2 (CodaRunID=1888)
- Install Lumi2 on top of the beamline.
- ADC1 chan2. Beamline Crate HV Slot 1 chan 10. C.H. Patch panel Signal 18
Run# Start Stop I_b PMT1-HV PMT2-HV Ia1(uA) Ia2(uA) lumi1r
----- ------ ----- ---- -------- ------- ------- ------- ------
1306 09:59 10:22 NB 0 0
12:35 50 -750 -500 -3.5 -0.9
1307 12:44 12:51 50 -750 -500
1308 12:55 13:04 50 -800 -600 -6.6 -5.1
1309 13:07 13:13 50 -850 -650 -11.8 -10.7 max
1310 13:18 13:41 50 -825 -625 -8.8 -7.1
1311 13:41 13:53 50 -825 -625
1312 14:12 14:18 100-50 -100 -100
1313 14:22 14:45 50 -825 -625
1314 14:47 15:10 50 -825 -625
1315 15:13 15:36 50 -825 -625
1316 15:37 15:59 50 -825 -625
1317 16:00 16:22 50 -825 -625
-----------------------------------------------------------
Friday June 28, 2002
- 17:00 Access move lumi1 from bottom to right of the beamline
- Lead Test (3 foils of 0.5 mm Pb each)
Beam Energy: 2848.04 MeV, 5-75 uA on 15 cm LH2 + Pb (27% r.l.).
Raster size: Size x*y (mm*mm) 2.5*0.2 (CodaRunID=1900)
- INTEG_TIME=7000
Run# Start Stop I_b PMT1-HV PMT2-HV Ia1(uA) Ia2(uA)
----- ------ ----- ---- -------- ------- ------- -------
1318 19:46 19:52 5 -825 -625 -420 -20.4
5 -600 -600 -5.7 -13.0
1319 20:00 20:23 5 -600 -575 -5.7 -8.4
1320 20:23 20:46 5 -600 -575
1321 20:50 21:13 5 -600 -575
1322 21:14 21:37 5 -600 -575
1323 21:37 21:52 5 -600 -575
1324 21:53 22:15 5,10,15 -600 -575
1325 22:16 22:38 5,10,15 -600 -575
1326 22:39 23:01 15 -600 -575
1327 23:43 00:06 25 -600 -575
1328 00:06 00:21 25,45 -600 -575
1329 00:21 00:25 45 -600 -575
1330 00:28 00:51 45 -575 -550 -6.4 -6.9
1331 00:53 01:16 15,60 -575 -550
1332 01:16 01:37 15,75 -575 -550
1333 01:37 01:48 15 -575 -550 (End Lead Test)
change INTEG_TIME from 7000 to 2600 and OVERSAMPLE from 1 to 5
1334 01:55 02:05 50 -575 -550 0.0 0.0 (optics target)
Turn OFF HV.
[INTEG_TIME Study]
INTEG_TIME OVERSAMPE I (uA)
1334 2600 5 50
1335 2550 5 0
1336 2550 5 10
1337 2550 5 50
1338 1100 11 50
1339 1100 11 50
1340 7000 1 50
1341 12000 1 30
1342 12000 1 60
-----------------------------------------------------------
Saturday June 29, 2002
[PZT and IA feedback tests] Empty target
- INTEG_TIME=12000
- Turn on HV
- 13:15 PMT1=-825 V, PMT2=-625 V, Empty target, 50 uA. Last run 1361
- 14:50 PMT1=-900 V, PMT2=-700 V, Empty target, 50 uA. Run 1362
Put in C thick target (0.5943 +/- 0.0008 g/cm^2). No raster 50 uA
Beam Energy: 2848.04 MeV
Run# Start Stop I_b PMT1-HV PMT2-HV Ia1(uA) Ia2(uA)
----- ------ ----- ---- -------- ------- ------- -------
1363 15:10 50 -900 -700 -10.7 -1.5
1364 15:22 50 -875 -725 -8.1 -2.1
during run 15:36 50 -850 -750 -6.2 -3.0
Runs: 1365, 1366, 1367, 1368, 1369, 1372, 1373
23:00 HV are OFF
-----------------------------------------------------------
Sunday June 30, 2002
[source feedback tests]
- INTEG_TIME=12000
- 11:30 Install lumi3: PMT H1949-50 (PMT R 1828-01) under the beam line.
- ADC1 chan3. Beamline Crate HV Slot 1 chan 9. C.H. Patch panel Signal 17
- Install lumi4 detector in the moller
11:40 No Beam: lumi3 (PMT only)
HV3 (V) Ia3 (uA)
------ -------
-500 0
-1000 0
-1500 0
-2000 -0.1
-2500 -2.1 Start Run 1394: 11:46 -> 11:57
-2600 -2.3 Start Run 1395: 11:58 -> 12:05
-2300 -0.2 Start Run 1396: 12:06 -> 12:09
OFF
18:00 No Beam: Replace PMT with my PMT (H7195). lumi3 (PMT only)
HV3 (V) Ia3 (uA)
------ -------
0 0
-500 0
-1000 0 (I_Leakage = -495 uA)
-1500 0 (I_Leakage = -689 uA)
-2000 0 (I_Leakage = -918 uA)
-2500 -0.4
-2700 -1.0 Start Run 1397: 18:13 -> 18:17
-2800 -1.7 Start Run 1398: 18:18 -> 18:30
OFF
- 22:00 Resolution study: C thin target (0.1109 +/- 0.0008 g/cm^2).
No raster 100 uA. Beam Energy: 4712.9 MeV
HV1 (V) Ia1 (uA) HV2 (V) Ia2 (uA) HV3 (V) Ia3 (uA)
------ -------- ------- ------- ------- -------
-600 0 -600 0 -600 0 I_b=5 uA
-600 0 -600 0 -600 0 I_b=100 uA
-875 -2.1 -725 -0.6 -900 -0.8
-900 -2.8 -775 -1.0 -950 -1.3
-950 -4.8 -825 -2.0 -1000 -2.1
-875 -3.5 -1050 -3.4
Run# Start Stop I_b HV1(V) Ia1(uA) HV2(V) Ia2(uA) HV3(V) Ia3(uA)
----- ------ ----- ---- ------ ------- ------ ------- ------ -------
1399 22:41 22:44 100
** Change INTEG_TIME from 12000 -> 7000
1400 22:48 23:00
-975 -6.1 -900 -4.5 -1100 -5.2
1401 23:04 23:16
1402 23:16 23:30
1403 23:30 23:42
23:43 -1000 -7.5 -950 -7.5 -1150 -7.9
1404 23:47 00:15
1405 00:15 00:44
1406 00:48 01:16
1407 01:16 01:45 95
1408 01:45 02:07
HV OFF.
END LUMI TEST.
-----------
Radiation Survey: lumi1 and lumi2 and 3 sheets of lead.
- Radiation type: Gamma
- Dose Rate: - Contact = 0.08 uREM
30 cm = 0.03 uREM
----------------------------------------------
Analysis of the data taken during experiment: d(e,e'p)
- integtime = 7000, oversample=1
! Run no. HV lumi1(chan) rms(chan) Asym_lumi1 sigma(ppm)
1254 -500 1620 27 8646
1255 -550 3952 59 7195
1256 -600 8915 129 6977
1257 -650 18617 286 6910
1258 -700 37044 571 6786
1259 -725 50911 739 6738
1260 -675 25533 382 6774
! adc1_2, adc1_3, adc1_4
1261 -675 26213 359 6623
1262 -675 25285 359 6656
1263 -675 24864 341 6593
!
1264 -675 23402 321 6501
1265 -675 23207 314 6344
1266 -675 22949 308 6325
1268 -675 19217 302 7288
1269 -675 18944 287 7196
!
1270 -600 6236 92 7224
1271 -750 50377 791 7056
1272 -675 18406 271 7047
1274 -675 17070 266 6802
1275 -675 16568 229 6642
1277 -675 16324 224 6624
1278 -675 16307 217 6250
1279 -675 16182 224 6669
!
1280 -675 16046 213 6338
1281 -675 16043 213 6569
1282 -675 15912 208 6283
1283 -675 15775 215 6302
1284 -675 15410 228 7091
1285 -675 15384 228 7203
1286 -675 15006 228 7275
1287 -675 14968 253 7274
1288 -675 15075 234 7236
!
! 9-foil optics C target, integtime = 7000, oversample=1
! Raster OFF, 100 uA (dominated by Pedestal Noise)
1290 -675 3527 20 1838
1291 -675 3496 22 1784
!
! LD2 target
1292 -675 15195 220 7157
1293 -675 15095 261 7132
1294 -675 14998 228 7281
1296 -675 14919 229 7177
1297 -675 14826 221 7367
1298 -675 14765 234 7233
1299 -675 14674 260 7245
!
1300 -675 14652 237 7279
1301 -675 14500 222 7213
1302 -675 14408 240 7180
1303 -675 14305 217 7230
!
! LD2, integtime = 4000, oversample=3
! Raster ON, 100 uA
1304 -675 8152 123 7653
!
! LH2, integtime = 7000, oversample=1
1305 -675 10770 588 16401
!
! --
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