Authors:
M. Schultz Advanced Measurement Technology, Inc. ORTEC 801 South Illinois Avenue Oak Ridge TN 37830 USA

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R. Keyser Advanced Measurement Technology, Inc. ORTEC 801 South Illinois Avenue Oak Ridge TN 37830 USA

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R. Trammell Advanced Measurement Technology, Inc. ORTEC 801 South Illinois Avenue Oak Ridge TN 37830 USA

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D. Upp Advanced Measurement Technology, Inc. ORTEC 801 South Illinois Avenue Oak Ridge TN 37830 USA

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Abstract  

A new digital filter has been investigated for removing low-frequency periodic noise from the output signal of hyper-pure germanium detectors (HPGe). Sources of noise examined include microphonics and simulated low-frequency noise (via input sinusoidal wave forms). In this paper, three distinctly different detector/mechanical-cooler combinations were investigated. Removal of the periodic noise induced from “outside” environmental sources, such as ground loops, is investigated using an input sinusoidal wave generator. The LFR not only improved spectral resolution across all energies in two of three detector/mechanical cooler combinations, but also removed simulated periodic noise from 100 to 3 kHz.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)