Electron-Capture Decay Rate of <SUP>7</SUP>Be Encapsulated in C<SUB>60</SUB> Cages

• Ohtsuki T.

  Laboratory of Nuclear Science, Tohoku University

• Hirose K.

  Laboratory of Nuclear Science, Tohoku University

• Ohno K.

  Department of Physics, Yokohama National University

Bibliographic Information

Other Title

• Electron-Capture Decay Rate of 7Be Encapsulated in C60 Cages

Abstract

The decay rate of ⁷Be electron capture (EC) was measured in C₆₀ and Be metal with a reference method. The halflives of ⁷Be endohedral C₆₀ (⁷Be@C₆₀) and ⁷Be in Be metal (Be metal (⁷Be) ) were found to be 52.65±0.04 and 53.25±0.04 days, respectively. This amounts to a 1.13% difference in the EC-decay half-life between ⁷Be@C₆₀ and Be meta (⁷Be). The result is a reflection of the different electron wave-functions for ⁷Be inside C₆₀ compared to when ⁷Be is in a Be metal. Here, the magnitude of the average charge-transfer from the L (2s) electrons of the ⁷Be atom plays an important role in such variation in the decay constant in the environments.

Journal

• Journal of Nuclear and Radiochemical Sciences

  Journal of Nuclear and Radiochemical Sciences 8 (1), A1-A7, 2007

  The Japan Society of Nuclear and Radiochemical Sciences

Details

• CRID: 1390282679458082560
• NII Article ID: 10021101513
• NII Book ID: AA11948402
• DOI: 10.14494/jnrs2000.8.a1
• COI: 1:CAS:528:DC%2BD2sXhtFemu7bK
• ISSN: 18835813
• ISSN: 13454749
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed