Active reset of digitized preamplifiers for ionizing-radiation sensors

In this paper, we propose a new add-on circuit structure that swiftly desaturates a digitized charge preamplifier for ionizing-radiation detectors when an energetic event occurs, or when a burst of piled up events puts it into saturation. The amplitude of the energetic event can even be reconstructe...

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Bibliographic Details
Published inIEEE transactions on nuclear science Vol. 51; no. 3; pp. 831 - 835
Main Authors Pullia, A., Boiano, C., Bassini, R., Pascovici, G.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2004
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Analog-digital conversion
Beams (radiation)
Bursting
Capacitance
Circuits
Digitization
Energetic particles
Energy measurement
Event detection
Feedback
Gamma ray detectors
Nuclear power generation
Particle beams
Photons
Preamplifiers
Saturation
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Summary:In this paper, we propose a new add-on circuit structure that swiftly desaturates a digitized charge preamplifier for ionizing-radiation detectors when an energetic event occurs, or when a burst of piled up events puts it into saturation. The amplitude of the energetic event can even be reconstructed with a time-over-threshold (TOT) measurement of the fast-reset transient. With an analog-to-digital converter (ADC) range of 10 MeV, we were able to measure events of up to 100 MeV. The circuit is conceived for experiments where a spurious background of energetic particles and photons exists, such those with exotic beams in the new generation of nuclear-physics research facilities.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2004.829582