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THE e$sup -$$-$$gamma$-COINCIDENCES DURING THE DECAY OF Pt$sup 18$$sup 8$ (in Russian)

Journal Article · · Izvestiya Akademii Nauk, Seriya Fizicheskaya (U.S.S.R.) For English translation see Bull. Acad. Sci. USSR, Phys. Ser. (Engl. Transl.)
OSTI ID:4717759
; ; ;
A Pt/sup 188/ sample was separated from the spallation products of gold irradiated with 660-Mev protons. The e/sup -/- gamma coincidences were measured on a double-focusing BETA spectrometer which was hooked up to a scintillation gamma spectrometer. The results showed that the 140, 380 and 410-kev gamma rays, and the K x rays were in coincidence with the L55 conversion eiectrons. The intensity of the x rays in coincidence with the L55 electrons indicated the absence of K capture at the 55-kev level of Ir/sup 188/ (and also at the upper 437- and 473-kev levels). The K195 conversion electrons made the principal contribution to the coincidences with the 280-kev gamma rays. There were no coincidences between the 187- and 195-kev quanta. The K140 electrons were in coincidence with the 280-kev gamma rays, and this indicated the presence of a cascade from the 470-kev level to the 195-kev level. The relative intensities of the gamma lines were compared with those of the Nuclear Data Sheets, N3 (1959), and were found to be in good agreement. The ratio of the electron conversion coefficients at the K shell are as follows; alpha (K/sub 140/) : alpha (K/sub 187/): alpha (K/sub 195/) : alpha (K/sub 280/) : alpha ( L/sub 380/) : alpha (K/sub 410/) : alpha (K/sub 470/) =
Research Organization:
Moscow State Univ.
NSA Number:
NSA-17-022594
OSTI ID:
4717759
Journal Information:
Izvestiya Akademii Nauk, Seriya Fizicheskaya (U.S.S.R.) For English translation see Bull. Acad. Sci. USSR, Phys. Ser. (Engl. Transl.), Journal Name: Izvestiya Akademii Nauk, Seriya Fizicheskaya (U.S.S.R.) For English translation see Bull. Acad. Sci. USSR, Phys. Ser. (Engl. Transl.) Vol. Vol: 26; ISSN IANFA
Country of Publication:
Country unknown/Code not available
Language:
Russian

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Related Subjects

BETA SPECTROMETERS
COINCIDENCE METHODS
DECAY
ELECTRONS
ENERGY LEVELS
FISSION PRODUCTS
GAMMA RADIATION
GAMMA SPECTROMETERS
GOLD
INTERNAL CONVERSION
IRIDIUM 188
IRRADIATION
PHYSICS
PLATINUM 188
PROTONS
SCINTILLATIONS
X RADIATION