THE DECAY OF Eu$sup 146$(4.7d) TO Sm$sup 14$$sup 6$

Journal Article · Sat Dec 01 04:00:00 EST 1962 · Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B

DOI:https://doi.org/10.1016/0029-5582(62)90382-6· OSTI ID:4719253

Funk, Jr, E G; Mihelich, J W; Schwerdtfeger, C F

The electron-capture and positron decay of 4.7-day Eu/sup 146/ to levels in Sm/sup 146/ is investigated with scintillation counters, magnetic spectrometers, and coincidence and directionalcorrelation techniques. The complex gamma spectrum extends to 2940 kev, with the most prominent transitions being those-of 635, 687, 704, 749, 902, 1061, 1300, and 1536 kev. Conversion electrons are studied with permanentmagnet spectrographs and an intermediate- image spectrometer. Levels in Sm/sup 146/ are established at the foilowing energies: 749 (21), 1384 (4+, 3-), 2051, 2288, 2884, 3180, 3202, and 3464 kev. A number of less certain levels are postulated on the basis of energy and intensity considerations. Positron branches of 2107, 1466, and 798 kev proceed to levels at 749, 1384, and 2051 kev, respectively. Directionai-correlation measurements are carried out on the 635-749 kev gamma cascade, but the results are ambiguous. A tabulation of energy-level data for the region of neutron number 82 to 88 is presented. (auth)

• Research Organization: Univ. of Notre Dame, Ind.
• NSA Number: NSA-17-009547
• OSTI ID: 4719253
• Report Number(s): TID-16277; 0029-5582
• Journal Information: Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B, Journal Name: Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B Vol. Vol: 39; ISSN NUPHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CAPTURE
COINCIDENCE METHODS
DECAY
ELECTRON TUBES
ELECTRONS
ENERGY LEVELS
EUROPIUM 146
GAMMA RADIATION
IMAGES
INTERNAL CONVERSION
LIFETIME
MAGNETIC FIELDS
NEUTRONS
PHYSICS
POSITRONS
SAMARIUM 146
SCINTILLATION COUNTERS
SPECTRA
SPECTROMETERS