High Resolution Automatic Beta Spectrometer

High Resolution Automatic Beta Spectrometer

A homogeneous magnetic field beta spectrometer and its completely automatic control system are described. Momentum resolution is such that a monoenergetic line has a full width at half maximum intensity of 0.22%. The instrument was used to analyze the conversion line spectrum of the 411‐kev gamma ra...

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Veröffentlicht in:Rev. Sci. Instr 1955-10, Vol.26 (10), p.959-962
Hauptverfasser: Birkhoff, Robert D., Smith, Arthur W., Hubbell, Harry H., Cheka, Joseph S.
Format: Artikel
Sprache:eng
Schlagworte:
BETA SPECTROMETERS
CONFIGURATION
CONTROL SYSTEMS
ENERGY RANGE
GAMMA RADIATION
INTERNAL CONVERSION
MAGNETIC FIELDS
MEASURED VALUES
MERCURY 198
MOMENTUM
PHYSICS
PLANNING
RESOLUTION
SPECTRA
USES
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Beschreibung
Zusammenfassung:A homogeneous magnetic field beta spectrometer and its completely automatic control system are described. Momentum resolution is such that a monoenergetic line has a full width at half maximum intensity of 0.22%. The instrument was used to analyze the conversion line spectrum of the 411‐kev gamma ray from Hg198. The data give for the conversion ratios K:L:M:N values of 1:0.361:0.100:0.027; and for (LI +LII ): LIII , the value 5.9.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1715164