NDLI: A High Rate 4πβ-γ Coincidence Counting System

Content Provider	IEEE Xplore Digital Library
Author	Johnson, L. O. Gehrke, R. J.
Copyright Year	1963
Abstract	A high count rate 4πβ-γ coincidence counting system for the determination of absolute disintegration rates of short half-life radionuclides is described. With this system the dead time per pulse is minimized by not stretching any pulses beyond the width necessary to satisfy overlap coincidence requirements. The pulse widths in the beta-ray (β), gamma-ray (γ), and coincidence channels are extendable and not fixed. Therefore, the dead-time for each channel is measured and recorded along with the gross count data during each counting period. The equations used to correct for the β, , and coincidence channel dead times and for accidental coincidences are presented but not rigorously developed in this paper. Experimental results are presented for a decaying source of ⁵⁶Mn initially at 2 × 10⁶ d/s and a set of ⁶⁰Co sources of accurately known source strengths varying from 10³ to 2 × 10⁶ d/s. A check of the accidental coincidence equation for the case of two independent sources with varying source strengths is presented.
Sponsorship	IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD
Starting Page	476
Ending Page	485
Page Count	10
File Size	2848744
File Format	PDF
ISSN	00189499
Volume Number	26
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1979-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse amplifiers Space vector pulse width modulation Pulse shaping methods Pulse measurements Time measurement Logic circuits Instruments Equations Detectors Geometry
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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