Publication Date

1972

Document Type

Dissertation/Thesis

First Advisor

Bushnell, David L.||Hasan, Mazhar

Degree Name

M.S. Ed. (Master of Education)

Department

Department of Physics

LCSH

Rhenium--Isotopes||Tungsten--Isotopes

Abstract

The electron capture decay of ¹⁸⁴Re to ¹⁸⁴W has been examined using a 20 cm³ Ge(Li) detector. Energies and intensities of gamma-ray transitions within the excited ¹⁸⁴W nucleus have been determined. A coincidence system utilizing a 20 cm³ Ge(Li) detector and a 3 X 3 inch NaI (Tl) detector was used to examine gamma rays in coincidence with five energy gates. The fast-slow coincidence system utilized time-to-pulse-height conversion with a resolving time of 30 nsec. A new gamma ray of 1430.5±0.3 keV has been observed. A level scheme is proposed consisting of levels at 111.24, 364.08, 748.1, 903.3, 1006.0, 1121.5, 1129.1, 1133.8, 1221.7, 1285.1, 1314.4, 1386.5, 1430.5, and 1501.1 keV. Of these, the 1314.4 and 1430.5 keV levels are new to the ¹⁸⁴W level scheme.

Comments

Includes bibliographical references.||Includes illustrations.

Extent

58 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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