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Author Holloway, J. T. ♦ Lu, D. C.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENGINEERING AND EQUIPMENT ♦ BETA PARTICLES ♦ CESIUM 137 ♦ FILMS ♦ MAGNETIC FIELDS ♦ PLANNING ♦ PROPORTIONAL COUNTERS ♦ RADIATIONS ♦ RADIOACTIVITY ♦ SAMPLING ♦ SPECTROMETERS
Abstract The design and construction of a cylindrical proportional counter 36 in. long. 12 in. i.d. is described, and its performance as a spectrometer for studying son radiations from radioactive samples of low specific activity is given. The counter tank is operated in an axial magnetic field of 2500 gauss to constrain beta rays to helical paths. A line width of 3.4% ( DELTA E/E) is obtained for 625-kev electrons from a Cs/sup 137/ source mounted on a thin film placed within the tank. Simple theory would predict 2.2%,. Beta spectra are readily obtained with sources having total activities less than 10 m mu C. (auth)
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-02-01
Journal Rev. Sci. Instr.
Volume Number 31
Organization Iowa State Univ., Ames


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