NATURAL ALPHA RADIOACTIVITY IN MEDIUM-HEAVY ELEMENTS

Journal Article · Tue Mar 14 23:00:00 EST 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.121.1758· OSTI ID:4056503

Macfarlane, R D; Kohman, T P

A large cylindrical ionization counter accommodating samples up to 1200 cm/sup 2/ in area was used for measurements of natural alpha radioactivity in medium-heavy elements. Low-background techniques and multichannel pulse analysis are employed. The method has greater energy resolution and yields better counting statistics than the nuclear emul sion technique, but dces not have as great a sensitivity. The results obtained from measurements on natural elements and isotopically enriched samples are given for Ce/sup 142/ Nd/sup 144/, Sm/sup 146/, Sm/sup 148/, Sm/sup 149/, Gd /sup 152/, Hf/sup 174/, W/sup 180/, Pt/sup 190/ , and Hg/sup 196/. (auth)

• Research Organization: Carnegie Inst. of Tech., Pittsburgh
• NSA Number: NSA-15-015083
• OSTI ID: 4056503
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 121; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA DECAY
BACKGROUND
CERIUM 142
COUNTERS
CYLINDERS
EFFICIENCY
ENERGY
ENRICHMENT
ERRORS
GADOLINIUM 152
HAFNIUM 174
INSTRUMENTS
IONIZATION CHAMBERS
ISOTOPES
MEASURED VALUES
MERCURY 196
NEODYMIUM 144
NUCLEI
PERFORMANCE
PHYSICS
PLATINUM 190
PULSE ANALYZERS
RADIOACTIVITY
RESOLUTION
SAMARIUM 146
SAMARIUM 147
SAMARIUM 148
SAMARIUM 149
STATISTICS
TUNGSTEN 180