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U.S. Department of Energy
Office of Scientific and Technical Information

GEOLOGIC ASPECTS OF THORIUM RECOVERY FROM COMMON ROCKS. Quarterly Progress Report, December 1, 1960 through February 28, 1961

Technical Report ·
OSTI ID:4023964
Studies were made of the thorium content of the Conway granite of New Hampshire. The single channel, vacuum tube pulse height analyzer was replaced by a 256 channel, transistorized instrument that improved the accuracy and speed of the radiometric determination of thorium in rocks. A transistorized portable instrument is also being constructed. It was concluded that the thorium in the Conway granite is very heterogeneously distributed and that these samples are hard to homogenize. The alpha activity of Brazil nuts was studied as part of an investigation of the thorium content of laterites. (M.C.G.)
Research Organization:
Rice Univ., Houston, Tex.
DOE Contract Number:
W-7405-ENG-26
NSA Number:
NSA-15-017127
OSTI ID:
4023964
Report Number(s):
TID-12543
Country of Publication:
United States
Language:
English