A multichannel electron detection system for use in a stabilized magnetic spectrometer

Loading...
Thumbnail Image
Authors
Kenaston, George W.
Luke, C. Thomas, Jr.
Sones, William C.
Subjects
Advisors
Crittenden, E.C., Jr.
Date of Issue
1965
Date
1965
Publisher
Monterey, California: U.S. Naval Postgraduate School
Language
en_US
Abstract
Multichannel counting systems facilitate the determination of differential cross sections in electron scattering experiments. The need for a high resolution counting system capable of handling fast counting rates has led to the construction of a transistorized, multichannel system for use with the 100 Mev linear electron accelerator being constructed at the U.S. Naval Postgraduate School. Design and operation of the counting system are discussed, and testing procedures are described. Since accurate measurement and stability of the spectrometer magnetic field is of fundamental importance in the operation of the multichannel detector, an accurate rotating coil fluxmeter for measuring and regulating the spectrometer magnetic field has also been built and is described. More familiar techniques of magnetic field measurement are not suitable for this application. Measurement of magnet current does not yield sufficient accuracy due to variations in field strength not linearly related to magnet current, and nuclear­ magnetic resonance devices are impractical where there is an inhomogeneous field such as exists in a double focusing spec­trometer magnet. The fluxmeter measures and regulates field strength to an accuracy of one part in 1000 or one gauss, whichever is greater.
Type
Thesis
Description
URI
Series/Report No
Department
Physics
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Collections