Last change
on this file since 10117 was 307, checked in by harald, 25 years ago |
This is the starting point for Trigger Studies. I introduced a
Class MTrigger, that will do all the trigger stuff in the camera program.
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File size:
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1 | //
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2 | // class MTrigger
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3 | //
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4 | // implemented by Harald Kornmayer
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5 | //
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6 | // This is a class to simulate the trigger.
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7 | // It assumes a special response of the PMT for one single Photo-electron.
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8 | //
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9 | //
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10 | //
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11 | #include <iostream.h>
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12 | #include <math.h>
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13 |
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14 | #include "TObject.h"
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15 |
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16 | #include "Mdefine.h"
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17 |
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18 | #define TRIGGER_TIME_SLICES 400
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19 | //
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20 | // We need 400 Time Slices of 0.25 nsec width.
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21 | // So the whole Time range we studies is 100 nsec.
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22 | //
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23 | #define RESPONSE_SLICES 40
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24 | //
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25 | // This is for the standard response Signal to 1 Photoelectron
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26 | // that leaves the Photocathode
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27 | // The whole Timescale for the signal is 10 nsec
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28 | //
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29 | //
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30 | // These values are discussed with Eckart. We start from this point.
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31 | #define RESPONSE_FWHM 2.
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32 | #define RESPONSE_AMPLITUDE 1.
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33 | //
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34 | // This are the Standard values of the response function for
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35 | // 1 photo electron.
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36 | // We assume a gaussian pulse with FWHM 2.5 nsec.
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37 | //
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38 |
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39 | #define CHANNEL_THRESHOLD 2.
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40 | //
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41 | // This is the diskriminator threshold for each individual channel
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42 | // First we set the value to 2 unit of the RESPONSE_AMPLITUDE
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43 | //
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44 | #define TRIGGER_GATE 3.
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45 | //
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46 | // Here we set the width of the digital signal we get if the signal
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47 | // passes the diskriminator
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48 | //
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49 | #define TRIGGER_MULTI 4.
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50 | //
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51 | // We get a Level Zero Trigger, if we have a least TRIGGER_MULTI
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52 | // channels with a diskrimiator signal at the same time
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53 | //
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54 |
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