Vertex  Detector T11 Test Beam May '99

Run List

This list has been transcribed from the log book, please report any errors or additional information.

I=leakage current on SCTA, believed to be correlated with common mode noise

FZ files are stored on Tape Y21249

Run         Events     I       comments             Tape File sequence

Beta source

  7                                    Runs taken in lab  237
34                                          "                                  238
41                                          "                                  218

Beam aimed at small radius region

56             8178               small sci. coincidence, 25ns time gate 233
66             4246                                                                                                                 239
73             10000             large sci. only                                                           241
74             1000                      "                                                                                242
77             10000                    "                                                                                245
78             10000                    "                                                            246
79             1000                      "                                                                                247
80             1000                 25ns time gate, small sci. coincidence 248
81             1000                      "                                                                                    249
82             1000                large sci only , no time gate                            250
83-90      1000 each       SCTA parameter scan
                                              251,missing?,253,254,252,255,256,257
92-106    5000 each        25ns time gate, small sci. coincidence
                                                               259-272, last missing ?
110          1000                 large sci. only,  274
111          1000                       " 275
112          1000                 small sci. coincidence 276
114          1000                 25ns time gate, small sci. coincidence , missing ?
116-117 1000                 VA2 timing checks 279,280
120          3000                 25ns time gate, small sci. coincidence 282
121-122 1000                 VA2 system only 283-284
123          5000                 25ns time gate, small sci. coincidence 285
124            100                    " 286
125          1000                 No VA2  287
127            200  31.8uA    25ns time gate, small sci. coincidence 289
128            635                       " 290
129-131  3000 each 34uA " 291-293
132-136  5000 each            " 294-298
137           3800                      " 299
138           2400                      " 300
139-141   5000                     " 301-303
142-143   1000                 tests with collimator slits changed, large sci only 304-305
144           1000                 25ns time gate, small sci. coincidence 306
145-149   5000                 25ns time gate, small sci. coincidence 307-311
150              ?                     crashed during run 312
151            1000     7.4uA  no beam- all bias at 0V 313
152            1000      22uA  no beam-90V bias 314

Beam Aimed at Large radius region

155            1000    20uA   25ns time gate, small sci. coincidence 315
163            5000    39uA      " 318
166            5000    44uA      " 320
167             ?         45uA       " , hplb02 crash during run 321
168             10000  46uA     " 323
169-179    10000  42uA     ", data taking overnight, at 9:30   324-334
185             1000                    "  337
186             10000                  "  338
191             2650                    "  341
192             5000                    "  342
193             10000  41uA     "  343
194             10000                        344
195             10000  42uA      "  350
196             10000  42uA      "  351

Beam aimed at small radius region

-Four consecutive samples from SCTA

217              500                    10ns Timing gate, small sci coincidence 367
218            1000                    25ns Timing gate, small sci coincidence 368
219            5000    38uA         " 369
220            5000    38uA         " 370
221            5000                       " 371
225-226   5000                       " 378-379
 

- SCTA Bias Voltage scan performed, VA2 at 90V

- Chip 1+2 of SCTA R are accidentally disconnected

227            5000    35uA        50V 380
228            5000    33.2uA     52V 381
229            2000    33.1uA     54V 382
230            1000    33.7uA     62V 383
231            2000    36.7uA     48V 384
232            2000    34.6uA     56V 385
234            2000    35.5uA     58V 346
235            ?              ?              60V 347
236            2000    36.3uA     65V 348
237            5000    39.3uA     47V 349
238            2000    40.6uA     75V 394
239            2000    43.4uA     80V 395
240            5000    39.0uA     44V 386
241            5000    48.0uA     120V 387
242          10000                      52V 388

- Chip 1+2 of SCTA R are reconnected

- SCTA Phi Detector with 1 chip connected

-Beam aimed at area of Phi detector read out

-Bias Voltage scan of SCTA R Detector, Phi det. + VA2 at 90V (why ???)

244         10000                        90V , Did we lose this data ?  missing?
245         10000     15uA          80V  390
246         10000     30uA          90V 391

-Bias Voltage scan of SCTA Phi Detector, R det. + VA2 at 90V

247        10000                          60V  392
248        10000                          70V 393
249        10000                        100V 396
250        10000                          50V  missing
251          5000                        150V  missing
252          5000                        150V 397
253          5000                          45V 398
254          5000                          45V 399
255          5000                        180V 400
256          5000                        180V 401
257          5000                          55V 402
258          5000                          55V 403
259          5000                          70V 404
260          5000                          60V 405

- Disconnect cables (bias, lemos, timing signals) to R detector

266          3200                          90V