Decay of <SUP>170</SUP>Ho Isomers to Levels in <SUP>170</SUP>Er

• Kawade Kiyoshi

  Department of Nuclear Engineering, Nagoya University

• Hiei Akira

  Department of Nuclear Engineering, Nagoya University

• Yamamoto Hiroshi

  Department of Nuclear Engineering, Nagoya University

• Amemiya Susumu

  Department of Nuclear Engineering, Nagoya University

• Katoh Toshio

  Department of Nuclear Engineering, Nagoya University

Bibliographic Information

Other Title

• Decay of 170Ho isomers to levels in 170Er

Abstract

Beta- and gamma-rays emitted in the decay of ¹⁷⁰Ho isomers have been studied with Ge(Li), NaI(Tl) and plastic detectors. Sources were prepared by the ¹⁷⁰Er(n, p)¹⁷⁰Ho reaction with about 15 MeV neutrons. Fifty γ-rays have been observed and thirty-six of them are assigned to the ¹⁷⁰Er level scheme including seven new levels at 1010.5, 1217.3, 1900.5, 1982.6, 2039.3, 2684.8 and 3606.2 keV. The most probable spin assignments of 1^± and 4^± are proposed for the 43 sec and 2.8 min ¹⁷⁰Ho, respectively. Both Q_β values are 4.0±0.2 MeV. The K=0 assignment for the 2⁺ state at 959.8 keV is proposed from the E2 branching rations to the ground-state band. It is found that the relative B(E2) values from γ-vibrational band can not be explained by a single value of the band mixing parameter z₂.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 36 (5), 1221-1229, 1974

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• General Physics and Astronomy

Details

• CRID: 1390282679171210624
• NII Article ID: 110001959085
• NII Article ID: 130003894034
• NII Article ID: 210000084260
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.36.1221
• BIBCODE: 1974JPSJ...36.1221K
• COI: 1:CAS:528:DyaE2cXktF2nu7o%3D
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 7669494
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7669494
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.36.1221
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed