ELECTRON-ELECTRON COINCIDENCE SPECTROMETER BRS-IV
Technical Report
·
OSTI ID:4080313
The original construction and recent modifications of the BRS-IV electron-electron coincidence spectrometer are summarized, and instructions for its use are given. The original spectrometer consisted of two collinear thin- lens beta spectrometers back-to-back. The whole was iron-free, and Helmholtz coils were used to negate the effect of the earth's magnetic field. The spectrometer was designed for a 1% transmission with a 2% resolution. It became necessary to modify the instrument because of its low transmission and because a new coincidence circuit was needed for higher counting rates. The modification decreased the source-to-detector distance from 100 to 40 cm and increased the maximum solid angle accepted from the source from 0.4% to 4% of 4 pi . (T.R.H.)
- Research Organization:
- California. Univ., Berkeley. Lawrence Radiation Lab.
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-15-006133
- OSTI ID:
- 4080313
- Report Number(s):
- UCRL-9423
- Country of Publication:
- United States
- Language:
- English
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