Difference between revisions of "TDC calibration"
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| − | '''run# 8742''': delay dt=59 ns between the rise side of the common start pulse and the | + | '''run# 8742''': delay dt=59 ns between the rise side of the common start pulse and the fall side of the fake stop signal. |
[[File:dt_100ns_8742_pic.jpg | 500 px]] | [[File:dt_100ns_8742_pic.jpg | 500 px]] | ||
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| − | '''run# 8736''': delay dt=100 ns between the | + | '''run# 8736''': delay dt=100 ns between the rise side of the common start pulse and the fall side of the fake stop signal. |
[[File:dt_100ns_8736_pic.jpg | 500 px]] | [[File:dt_100ns_8736_pic.jpg | 500 px]] | ||
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| − | '''run# 8737''': delay dt=200 ns between the | + | '''run# 8737''': delay dt=200 ns between the rise side of the common start pulse and the fall side of the fake stop signal. |
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The mean of the peak is at 165.5 channel | The mean of the peak is at 165.5 channel | ||
| − | '''run# 8738''': delay dt=300 ns between the | + | '''run# 8738''': delay dt=300 ns between the rise side of the common start pulse and the fall side of the fake stop signal. |
[[File:r8738_tdc.jpg | 500 px]] | [[File:r8738_tdc.jpg | 500 px]] | ||
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| − | '''run# 8739''': delay dt=400 ns between the | + | '''run# 8739''': delay dt=400 ns between the rise side of the common start pulse and the fall side of the fake stop signal. |
The data look like: | The data look like: | ||
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The mean of the peak is at 511.5 channel | The mean of the peak is at 511.5 channel | ||
| − | '''run# 8740''': delay dt=800 ns between the | + | '''run# 8740''': delay dt=800 ns between the rise side of the common start pulse and the fall side of the fake stop signal. |
The data look like: | The data look like: | ||
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The mean of the "main" peak is at 1197 channel | The mean of the "main" peak is at 1197 channel | ||
| − | '''run# 8741''': delay dt=1000 ns between the | + | '''run# 8741''': delay dt=1000 ns between the rise side of the common start pulse and the fall side of the fake stop signal. |
The data look like: | The data look like: | ||
Revision as of 15:00, 19 March 2015
run# 8742: delay dt=59 ns between the rise side of the common start pulse and the fall side of the fake stop signal.
The data look like:
run# 8736: delay dt=100 ns between the rise side of the common start pulse and the fall side of the fake stop signal.
The data look like:
run# 8737: delay dt=200 ns between the rise side of the common start pulse and the fall side of the fake stop signal.
The data look like:
The mean of the peak is at 165.5 channel
run# 8738: delay dt=300 ns between the rise side of the common start pulse and the fall side of the fake stop signal.
The data look like:
The mean of the peak is at 335.7 channel
run# 8739: delay dt=400 ns between the rise side of the common start pulse and the fall side of the fake stop signal.
The data look like:
The mean of the peak is at 511.5 channel
run# 8740: delay dt=800 ns between the rise side of the common start pulse and the fall side of the fake stop signal.
The data look like:
The mean of the "main" peak is at 1197 channel
run# 8741: delay dt=1000 ns between the rise side of the common start pulse and the fall side of the fake stop signal.
The data look like:
The mean of the "main" peak is at 1548 channel
Calibration procedure summary
| Delay, ns | Average TDC ch # |
| 100 | 165.5 |
| 200 | 335.7 |
| 300 | 511.5 |
| 700 | 1197 |
| 900 | 1548 |
TDC calibration plot:
regression line fit y = 1.724728814 x - 7.940677966
The TDC calibration is
