log term test
DESCRIPTION
Log term test. Johan M., Vito P. 16/12/2013. Setup. MPOD. 1 SRB (4chs) . 30 COVERs. The Test. The test consists to repeat e very minute a noise scan over 24h. HV on but no active gas . The Test. The test consists to repeat e very minute a noise scan over 24h. - PowerPoint PPT PresentationTRANSCRIPT
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Log term testJohan M., Vito P.16/12/2013
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Setup
1 SRB (4chs)
MPOD
30 COVERs
![Page 3: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/3.jpg)
The TestThe test consists to repeat every
minute a noise scan over 24h. HV on but no active gas
![Page 4: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/4.jpg)
The TestThe test consists to repeat every
minute a noise scan over 24h. HV on but no active gas
![Page 5: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/5.jpg)
Noise Scan ResultsIn order to study the behavior of our electronics in time we ar computing the weighted mean and sigma of each channel versus the time.
![Page 6: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/6.jpg)
Noise Scan Results (Sigmas)
![Page 7: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/7.jpg)
Noise Scan Results (Means)
![Page 8: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/8.jpg)
Noise Scan ResultsIn order to study the behavior of our electronics in time we are computing the weighted mean and sigma of each channel versus the time. The mean variation is less than 1mV over 24h (no temperature or humidity monitoring).
![Page 9: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/9.jpg)
Noise Scan ResultsIn order to study the behavior of our electronics in time we ar computing the weighted mean and sigma of each channel versus the time. The mean variation is less than 1mV over 24h (no temperature or humidity monitoring). Few (~8/~1800) runs are clearly deviating from the collective behavior, but inspecting them…
![Page 10: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/10.jpg)
“Failing” Noise Scans
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“Failing” Noise Scans
![Page 12: Log term test](https://reader035.vdocuments.us/reader035/viewer/2022062520/56815e4f550346895dccc6d7/html5/thumbnails/12.jpg)
“Failing” Noise Scans
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Future Plans The long term test we performed up
to now does not suggest problems in our apparatus.
Possible external sources of noise have been found (to be confirmed).
Possible baseline variations.The apparatus Johan prepared for the
test is ready to be extensively used. A fully comprehensive test will be
performed from January.