Difference between revisions of "03-27-2015"
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| − | | Run #|| Description | + | | Run # (multihit data)|| Description |
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| − | | | + | |4501 || Cosmic rays test, DAQ is triggered by Det #1 (bottom, multihit TDC9), HV(Det#1) was reduced to -1150 V, LED threshold on the signal coming from the top of Det#1 was set to 255 mV and fed into CAEN N93B Dual Timer. The pulse width was increased by the timer to 60 ns. |
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Revision as of 19:50, 27 March 2015
Investigation of the nature of the secon peak in the second hit mode.
1. LED is in non-updating mode, 30 mV threshold, 40 ns pulse width:
2. LED is in updating mode (in hope to get rid of the second pulse), 30 mV threshold, 40 ns pulse width:
Second pulse is still there.
Another case of the second pulse appearance (same conditions):
| Run # (multihit data) | Description |
| 4501 | Cosmic rays test, DAQ is triggered by Det #1 (bottom, multihit TDC9), HV(Det#1) was reduced to -1150 V, LED threshold on the signal coming from the top of Det#1 was set to 255 mV and fed into CAEN N93B Dual Timer. The pulse width was increased by the timer to 60 ns. |