reference for percent of rejected hits for RICH

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User name ycwang

Log entry time 19:24:44 on December 02, 2008

Entry number 251769

keyword=reference for percent of rejected hits for RICH

<pre>

Mostly likely we reject the real noise?

I just provide the information as following.

The first type of rejected hits is 0xca00bad0(too many hits==noise?),
the second type of rejected hits is 0xca000bad (timeout), we see that
only the first type of rejected hits changes obviously with different
conditions.

Mauro gets some plots for good events when nhits<500 ; and one bump when
500<nhits<3000 for "stardard (CRAM_chan_MAX=120)" configuration ; and one
more bump for "CRAM_chan_MAX=180 configuration" then when 3000<nhits<6000
for specific run #4073.

</pre>

<pre>

ROC 14 ROC 15
CRAM_chan_MAX=120 time delay -152ns HV=2200V

4088.dat.0 516652 1086 4853522 145833 543 5224884
4088.dat.0 9.619 0.020 2.715 0.010
4088.dat.1 267256 508 2527846 75107 254 2720249
4088.dat.1 9.560 0.018 2.687 0.009

4074.dat.0 406683 1092 4985355 149342 546 5243242
4074.dat.0 7.541 0.020 2.769 0.010

Cram_chan_MAX=180 HV=2200 time delay= -152 ns
4073.dat.0 52048 1042 4831630 34052 521 4850147
4073.dat.0 1.066 0.021 0.697 0.011
4073.dat.1 33838 642 3251840 22037 321 3263962
4073.dat.1 1.030 0.020 0.671 0.010

cram_MAX=180 HV =2200V time delay -152ns

4069.dat.0 8679 184 884507 5783 92 887495
4069.dat.0 0.971 0.021 0.647 0.010

Cram_MAX=240 HV=2200V time delay -152ns
4068.dat.0 296 172 862842 575 86 862649
4068.dat.0 0.0343 0.0199 0.066 0.010

Cram_chan_MAX=120 time delay -152ns
HV=2150V
4063.dat.0 390951 1034 4969795 133989 567 5227224
4063.dat.0 7.291 0.019 2.499 0.011
4063.dat.1 186851 543 2520816 63210 295 2644805
4063.dat.1 6.903 0.020 2.334 0.011

ROC 14 ROC15
Transverse-in-plane
4037.dat.0 437731 1138 4812391 155528 569 5095163
4037.dat.0 8.336 0.022 2.962 0.011
4037.dat.1 237370 576 2538404 85151 288 2690911
4037.dat.1 8.550 0.021 3.067 0.010

4035.dat.0 439791 1110 4836219 157799 555 5118766
4035.dat.0 8.334 0.021 2.990 0.011
4035.dat.1 228192 526 2516162 81941 263 2662676
4035.dat.1 8.313 0.019 2.985 0.010

4027.dat.0 434634 1118 4876048 153815 559 5157426
4027.dat.0 8.181 0.021 2.896 0.011
4027.dat.1 226005 532 2485733 80661 266 2631343
4027.dat.1 8.332 0.020 2.974 0.010

4025.dat.0 438672 1075 4922363 156861 540 5204709
4025.dat.0 8.180 0.020 2.295 0.010
4025.dat.1 217917 530 2449903 78962 265 2589123
4025.dat.1 8.167 0.020 2.959 0.010

4017.dat.0 411207 1068 4896885 147592 537 5161031
4017.dat.0 7.745 0.020 2.780 0.010
4017.dat.1 206458 528 2500604 74216 264 2633110
4017.dat.1 7.625 0.020 2.741 0.010

4015.dat.0 417827 1112 4836371 148380 560 5106370
4015.dat.0 7.951 0.021 2.823 0.011
4015.dat.1 216675 542 2516263 78073 273 2655134
4015.dat.1 7.927 0.020 2.856 0.010

*************************************************
Vetical
**************************************************************************
HV=2250V
3993.dat.0 349144 1176 5049710 130962 611 5268457
3993.dat.0 6.466 0.022 2.425 0.011
3993.dat.1 165374 575 2459261 61736 297 2563177
3993.dat.1 6.299 0.022 2.352 0.011

HV = 2300V
3996.dat.0 480842 916 4695822 178872 458 4998250
3996.dat.0 9.287 0.018 3.455 0.009
3996.dat.1 272084 576 2622220 101124 288 2793468
3996.dat.1 9.399 0.020 3.493 0.010

HV =2150V
3998.dat.0 478251 1142 4723507 177722 571 5024607
3998.dat.0 9.192 0.022 3.416 0.011
3998.dat.1 266084 584 2676482 99178 292 2843680
3998.dat.1 9.041 0.020 3.370 0.010

HV =2200V
4000.dat.0 480242 1058 4849460 176529 529 5153702
4000.dat.0 9.009 0.020 3.311 0.010
4000.dat.1 64001 194 914645 21103 97 957640
4000.dat.1 6.538 0.020 2.156 0.010

Before(-152ns)
3934

after(-152ns)
3987.dat.0 368418 1124 5047468 139876 562 5276572
3987.dat.0 6.801 0.021 2.582 0.010

****************************************************************************

HV=2200 Cram_chan_MAX=120 time delay =-200ns
3800.dat.0 91063 1813 5561464 38639 2370 5613331
3800.dat.0 1.611 0.032 0.683 0.042
3800.dat.1 41298 823 2392469 16976 952 2416662
3800.dat.1 1.696 0.034 (53 minutes) 0.697 0.039

3835.dat.0 86909 2099 5926472 37510 1452 5976518
3835.dat.0 1.445 0.035 0.624 0.024
3835.dat.1 33443 735 2236462 14547 548 2255545
3835.dat.1 1.473 0.032 (69minutes) 0.641 0.024

3868.dat.0 105284 1936 5693700 (0xca00bad0) 38106 2522 5760292
3868.dat.0 1.815 0.033 (0xca000bad) 0.657 0.043
3868.dat.1 46210 848 2396802 16608 938 2426314
3868.dat.1 1.891 0.035 (57minutes) 0.680 0.038

3882.dat.0 112020 1942 5538488 39328 2476 5610646
3882.dat.0 1.982 0.034 0.696 0.044
3882.dat.1 50246 840 2581444 (55minutes) 17011 1191 2614328
3882.dat.1 1.909 0.032 0.646 0.045

3884.dat.0 115132 1862 5720946 (62minutes) 38084 2793 5797063
3884.dat.0 1.972 0.032 0.652 0.048
3884.dat.1 52115 812 2473463 16564 1115 2508711
3884.dat.1 2.063 0.032 0.656 0.044

************************************************

3955.dat.0 58019 1798 5240823 27819 899 5271922
3955.dat.0 1.095 0.034 1.129 0.525 0.017 0.542
3955.dat.1 26001 856 2579903 12359 428 2593973
3955.dat.1 0.997 0.033 1.030 0.474 0.016 0.490

3956.dat.0 56543 1840 5363247 26475 920 5394235
3956.dat.0 1.043 0.034 1.077 0.488 0.017 0.505
3956.dat.1 25905 854 2473501 12506 427 2487327
3956.dat.1 1.036 0.034 1.070 0.500 0.017 0.517

3957.dat.0 57082 1908 5330390 27371 954 5361055
3957.dat.0 1.059 0.035 1.094 0.508 0.018 0.526
3957.dat.1 22165 670 2282575 10433 335 2294642
3957.dat.1 0.961 0.029 0.990 0.453 0.014 0.467

******Time delay to 200ns ******** From RUN # 3955 to RUN #3971

3966.dat.0 55921 1774 5318275 (56 minutes) 26685 887 5348398
3966.dat.0 1.040 0.033 1.073 0.496 0.016 0.512
3966.dat.1 27278 880 2545632 12748 440 2560602
3966.dat.1 1.060 0.034 1.094 0.495 0.017 0.5

3967.dat.0 54617 1818 5402425 (61minutes) 26043 909 5431908
3967.dat.0 1.001 0.033 1.034 0.477 0.017 0.494
3967.dat.1 27083 798 2524279 12992 399 2538769
3967.dat.1 1.061 0.031 1.092 0.509 0.016 0.525

3968.dat.0 53723 1772 5561705 (71minutes) 25831 886 5590483
3968.dat.0 0.956 0.032 0.988 0.460 0.016 0.476
3968.dat.1 24185 792 2488753 11694 396 2501640

3968.dat.1 0.962 0.032 0.994 0.465 0.016 0.481

</pre>

A copy of this log entry has been emailed to: "Robert Michaels" , "Alexandre Camsonne" , "Mauro Iodice" , "Evaristo Cisbani" ,francesco.cusanno@iss.infn.it