Difference between revisions of "Cerenkov"
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(New page: Importance values on Gas Cerenkov: 1, There 10 mirrors to collect the light then focusson 10 PMTs. 2, Filled with CO2: n=1.00041 3, Light emission threshold: for electron ~ 0.017 GeV/c,...) |
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| − | + | Some importance values on Gas Cerenkov: | |
1, There 10 mirrors to collect the light then focusson 10 PMTs. | 1, There 10 mirrors to collect the light then focusson 10 PMTs. | ||
| − | 2, Filled with CO2: n=1.00041 | + | 2, Filled with CO2: n=1.00041. |
| − | 3, Light emission threshold: for electron ~ 0.017 GeV/c, for pion ~ 4.8 Gev/c | + | 3, 1000mm for the GC in R-HRS and 1500mm for the GC in L-HRS. |
| + | 4, Light emission threshold: for electron ~ 0.017 GeV/c, for pion ~ 4.8 Gev/c. | ||
| + | |||
| + | ADC Alignment: | ||
| + | # Ped Peak_obs Peak_need SPE Gain HV_old HV_new hv_ratio | ||
| + | Cer#0 422.9 668.5 722.9 235.650 1.221 -1752.0 -1787.4 1.020 | ||
| + | Cer#1 366.6 895.7 666.6 519.158 0.567 -1800.0 -1700.7 0.945 | ||
| + | Cer#2 372.9 761.6 672.9 378.643 0.772 -2001.0 -1949.9 0.974 | ||
| + | Cer#3 389.9 761.3 689.9 361.424 0.808 -1571.0 -1537.8 0.979 | ||
| + | Cer#4 517.3 883.0 817.3 355.736 0.820 -1926.0 -1888.2 0.980 | ||
| + | Cer#5 457.1 729.4 757.1 262.349 1.102 -1651.0 -1667.0 1.010 | ||
| + | Cer#6 474.8 812.3 774.8 327.507 0.889 -1650.0 -1630.7 0.988 | ||
| + | Cer#7 432.4 616.5 732.4 174.119 1.629 -1999.0 -2099.0 1.050 | ||
| + | Cer#8 409.8 592.0 709.8 172.258 1.646 -1840.0 -1934.0 1.051 | ||
| + | Cer#9 395.9 658.2 695.9 252.239 1.144 -1750.0 -1773.7 1.014 | ||
| + | |||
| + | [[Image:L.cer.ADC.png]] | ||
| + | [[Image:L.cer.ADC.spe.png]] | ||
Latest revision as of 15:21, 21 March 2011
Some importance values on Gas Cerenkov:
1, There 10 mirrors to collect the light then focusson 10 PMTs. 2, Filled with CO2: n=1.00041. 3, 1000mm for the GC in R-HRS and 1500mm for the GC in L-HRS. 4, Light emission threshold: for electron ~ 0.017 GeV/c, for pion ~ 4.8 Gev/c.
ADC Alignment:
# Ped Peak_obs Peak_need SPE Gain HV_old HV_new hv_ratio Cer#0 422.9 668.5 722.9 235.650 1.221 -1752.0 -1787.4 1.020 Cer#1 366.6 895.7 666.6 519.158 0.567 -1800.0 -1700.7 0.945 Cer#2 372.9 761.6 672.9 378.643 0.772 -2001.0 -1949.9 0.974 Cer#3 389.9 761.3 689.9 361.424 0.808 -1571.0 -1537.8 0.979 Cer#4 517.3 883.0 817.3 355.736 0.820 -1926.0 -1888.2 0.980 Cer#5 457.1 729.4 757.1 262.349 1.102 -1651.0 -1667.0 1.010 Cer#6 474.8 812.3 774.8 327.507 0.889 -1650.0 -1630.7 0.988 Cer#7 432.4 616.5 732.4 174.119 1.629 -1999.0 -2099.0 1.050 Cer#8 409.8 592.0 709.8 172.258 1.646 -1840.0 -1934.0 1.051 Cer#9 395.9 658.2 695.9 252.239 1.144 -1750.0 -1773.7 1.014
