An avalanche transistor coincidence circuit for use with the orange spectrometer.

This thesis describes the use of avalanche transistors in a circuit for measuring delayed coincidences. Using the circuit, the time characteristics of the beta-ray Orange Spectrometer are determined to be such that for most coincidence measurements the lower limit of resolution will be determined pr...

Full description

Bibliographic Details
Main Author:	Hardy, John. C.
Other Authors:	Bell, R. (Supervisor)
Format:	Others
Language:	en
Published:	McGill University 1963
Subjects:	Physics.
Online Access:	http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115111

id	ndltd-LACETR-oai-collectionscanada.gc.ca-QMM.115111
record_format	oai_dc
spelling	ndltd-LACETR-oai-collectionscanada.gc.ca-QMM.1151112014-02-13T04:10:01ZAn avalanche transistor coincidence circuit for use with the orange spectrometer.Hardy, John. C.Physics.This thesis describes the use of avalanche transistors in a circuit for measuring delayed coincidences. Using the circuit, the time characteristics of the beta-ray Orange Spectrometer are determined to be such that for most coincidence measurements the lower limit of resolution will be determined primarily by the photomultipliers and scintillators, and not the spectrometer. A method for calculating the electron path lengths - and so, times of flight - which can be applied to spectrometers of this type is outlined and tested. The circuit provides a ready means for measuring the time characteristics of the avalanche transistor itself, and such a study is made. On this basis it is shown that the coincidence only “sees” the photomultiplier pulse for that instant at which it reaches a certain predetermined voltage.McGill UniversityBell, R. (Supervisor)1963Electronic Thesis or Dissertationapplication/pdfenalephsysno: NNNNNNNNNTheses scanned by McGill Library.All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated.Master of Science. (Department of Physics.) http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115111
collection	NDLTD
language	en
format	Others
sources	NDLTD
topic	Physics.
spellingShingle	Physics. Hardy, John. C. An avalanche transistor coincidence circuit for use with the orange spectrometer.
description	This thesis describes the use of avalanche transistors in a circuit for measuring delayed coincidences. Using the circuit, the time characteristics of the beta-ray Orange Spectrometer are determined to be such that for most coincidence measurements the lower limit of resolution will be determined primarily by the photomultipliers and scintillators, and not the spectrometer. A method for calculating the electron path lengths - and so, times of flight - which can be applied to spectrometers of this type is outlined and tested. The circuit provides a ready means for measuring the time characteristics of the avalanche transistor itself, and such a study is made. On this basis it is shown that the coincidence only “sees” the photomultiplier pulse for that instant at which it reaches a certain predetermined voltage.
author2	Bell, R. (Supervisor)
author_facet	Bell, R. (Supervisor) Hardy, John. C.
author	Hardy, John. C.
author_sort	Hardy, John. C.
title	An avalanche transistor coincidence circuit for use with the orange spectrometer.
title_short	An avalanche transistor coincidence circuit for use with the orange spectrometer.
title_full	An avalanche transistor coincidence circuit for use with the orange spectrometer.
title_fullStr	An avalanche transistor coincidence circuit for use with the orange spectrometer.
title_full_unstemmed	An avalanche transistor coincidence circuit for use with the orange spectrometer.
title_sort	avalanche transistor coincidence circuit for use with the orange spectrometer.
publisher	McGill University
publishDate	1963
url	http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115111
work_keys_str_mv	AT hardyjohnc anavalanchetransistorcoincidencecircuitforusewiththeorangespectrometer AT hardyjohnc avalanchetransistorcoincidencecircuitforusewiththeorangespectrometer
_version_	1716646585514852352

An avalanche transistor coincidence circuit for use with the orange spectrometer.

Similar Items