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− | =06-11-2008=
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− | {| border="1" |cellpadding="20" cellspacing="0
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− | |colspan= "3" | HV settings
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− | |-
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− | | Wire || Volts
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− | |-
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− | |Sense || 1400
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− | |-
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− | |Field || -700
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− | |-
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− | |Guard || 700
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− | |}<br>
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− | [[Image:Noise_level_on_Metalica_and_Plastika_using_VPI_PostAmp_PreAmp_6_3V_HVon_1400V.png|400px]]<br>
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− |
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− | Channel 1 is Metalica and Channel 2 Plastika.<br>
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− |
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− | {| border="1" |cellpadding="20" cellspacing="0
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− | |-
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− | |Threshold(mV) || Metalica (Events/hr)VPI PostAmp || Plastika (Events/hr)VPI PostAmp
| |
− | |-
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− | | 150 || 871 || 722
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− | |-
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− | | 150 || 894 || 611
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− | |-
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− | | 150 || 920 || 670
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− | |-
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− | | 150 || 900 || 613
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− | |-
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− | | 200 || 589 || 466
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− | |-
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− | | 250 || 473 || 381
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− | |-
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− | | 400 || 190 || 181
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− | |-
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− | |}<br>
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− |
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| =06-12-2008= | | =06-12-2008= |
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Revision as of 16:47, 17 June 2008
06-12-2008
HV settings
|
Wire |
Volts
|
Sense |
1400
|
Field |
-700
|
Guard |
700
|
Threshold(mV) |
Metalica (Events/hr)VPI PostAmp |
Plastika (Events/hr)VPI PostAmp |
Coincidence(Events/hr)
|
100 |
1609 |
1146 |
|
100 |
1707 |
1176 |
|
100 |
1515 |
1192 |
|
100 |
1643 |
1443 |
|
150 |
1101 |
890 |
|
150 |
1040 |
914 |
|
150 |
1045 |
820 |
|
150 |
1112 |
876 |
|
200 |
697 |
694 |
|
200 |
666 |
633 |
|
250 |
475 |
498 |
|
250 |
466 |
481 |
|
300 |
371 |
385 |
|
350 |
270 |
318 |
|
400 |
204 |
202 |
|
400 |
207 |
257 |
|
450 |
155 |
200 |
|
Threshold(mV) |
Metalica (Events/hr)VPI PostAmp |
Plastika (Events/hr)VPI PostAmp |
Coincidence(Events/hr)
|
100 |
[math]1619 \pm 69[/math] |
[math]1239 \pm 119[/math] |
|
150 |
[math]1075 \pm 32[/math] |
[math]875 \pm 35[/math] |
|
200 |
[math]682 \pm 16[/math] |
[math]664 \pm 31[/math] |
|
250 |
[math]471 \pm 5[/math] |
[math]490 \pm 9[/math] |
|
300 |
|
|
|
350 |
|
|
|
400 |
[math]206 \pm 1[/math] |
[math]230 \pm 27[/math] |
|
450 |
|
|
|
500 |
|
|
|
Bottom Scintillator
|
Top Scintillator
|
Threshold(mV) |
Rate(Events/hr) |
Threshold(mV) |
Rate(Events/hr)
|
250 |
739 |
50 |
1286
|
250 |
805 |
50 |
1308
|
250 |
652 |
50 |
1299
|
250 |
748 |
50 |
1289
|
300 |
368 |
100 |
470
|
300 |
356 |
100 |
460
|
300 |
385 |
100 |
443
|
300 |
392 |
100 |
457
|
350 |
237 |
150 |
132
|
350 |
240 |
150 |
110
|
350 |
255 |
150 |
117
|
|
|
175 |
63
|
400 |
164 |
200 |
40
|
450 |
120 |
250 |
18
|
450 |
121 |
250 |
18
|
500 |
92 |
|
|
06-17-2008
HV settings
|
Wire |
Volts
|
Sense |
1450
|
Field |
-725
|
Guard |
725
|
old
HV settings
|
Wire |
Volts
|
Sense |
1500
|
Field |
-750
|
Guard |
750
|
The Voltage on the PreAmp is 6.3 Volts
Threshold(mV) |
Metalica (Events/hr)GainAmp777 |
Plastika (Events/hr)GainAmp777 |
Coincidence(Events/hr)GainAmp777 |
Metalica (Events/hr)VPI PostAmp |
Plastika (Events/hr)VPI PostAmp |
Coincidence(events/hr)VPI PostAmp
|
150 |
963 |
597 |
132 |
1474 |
1467 |
151
|
150 |
1370 |
763 |
37 |
2563 |
2400 |
240
|
150 |
1851 |
1024 |
82 |
4133 |
3492 |
362
|
150 |
2254 |
1673 |
141 |
5971 |
4676 |
501
|
200 |
928 |
878 |
51 |
3361 |
2266 |
105
|
200 |
1226 |
1088 |
85 |
5220 |
3043 |
139
|
200 |
1502 |
1263 |
20 |
6882 |
3833 |
118
|
200 |
1690 |
1372 |
23 |
6884 |
4173 |
125
|
Threshold(mV) |
Metalica (Events/hr)GainAmp777 |
Plastika (Events/hr)GainAmp777 |
Coincidence(Events/hr)GainAmp777 |
Metalica (Events/hr)VPI PostAmp |
Plastika (Events/hr)VPI PostAmp |
Coincidence(events/hr)VPI PostAmp
|
150 |
[math]1610 \pm 487[/math] |
[math]1014 \pm 410[/math] |
[math]98 \pm 42[/math] |
[math]3535 \pm 1694[/math] |
[math]3009 \pm 1200[/math] |
[math]314 \pm 132[/math]
|
200 |
[math]1337 \pm 288[/math] |
[math]1150 \pm 187[/math] |
[math]45 \pm 26[/math] |
[math]5587 \pm 1453[/math] |
|
|
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