Modification of the nuclear energy level width

Il-T. Cheon

doi:10.1209/epl/i2004-10439-3

All issues

Volume 69 / No 6 (March 2005)

Europhys. Lett., 69 6 (2005) 900-905

Abstract

This article has an erratum: [https://doi.org/10.1209/epl/i2005-10361-2]

Issue		Europhys. Lett. Volume 69, Number 6, March 2005


Page(s)		900 - 905
Section		Nuclear physics
DOI		https://doi.org/10.1209/epl/i2004-10439-3
Published online		16 February 2005

Europhys. Lett., 69 (6), pp. 900-905 (2005)

Modification of the nuclear energy level width

Il-T. Cheon

Department of Physics, Yonsei University - Seoul 120-749, Korea

Corresponding author: itcheon@hotmail.com

Received: 16 November 2004
Accepted: 19 January 2005

Abstract

A possible method is proposed to modulate the nuclear γ-decay constant which is related to the lifetime. When the radioactive $\chem{{}^{133}Cs}$ nucleus embedded in a compound is placed between two silver plates and separated by 0.02 $\un{cm}$ from each plate, the width of 81 $\un{keV}$ excited level turns out to be $6.90\times 10^{-8}$ $\un{eV}$ at 4.2 $\un{K}$ , which is about 4% narrower than the natural line width, $7.27\times 10^{-8}$ $\un{eV}$ . This implies 5.4% increase of the lifetime.

PACS: 21.10.Tg – Lifetimes / 23.20.Lv – γ transitions and level energies / 25.20.Dc – Photon absorption and scattering

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