Abstract
7Be decays via electron capture and therefore its half-life is expected to depend on the electron density at the nucleus. We measured the 7Be half-life in palladium, tungsten, zirconium and tantalum metals, in order to investigate the influence of the quasi-free electrons in metals on the probability of electron capture. The 7Be samples were obtained implanting a 4.85MeV pure radioactive 7Be ion beam. The 7Be half-life was determined measuring the 478 keV gamma decay following the electron capture by means of HPGe detectors. In order to reduce systematic errors, we planned to perform independent measurements in three different laboratories: Naples (Italy), Bochum (Germany) and Debrecen (Hungary). On the basis of the first results, we do not find a 7Be half-life change within the experimental errors of 0.4%.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
E. Segré, C.E. Wiegand, Phys. Rev. 75, 39 (1949).
M.M. Bé et al., Table of Radionuclide (comments on evaluation), Monographie BIPM-5 (2004) Bureau International des poids et des mesures.
T. Ohtsuki et al., Phys. Rev. Lett. 93, 112501 (2004).
A. Ray et al., Phys. Lett. B 455, 69 (1999).
S.H. Zhou et al., Chin. Phys. Lett. 22 No. 3, 565 (2005).
F. Raiola et al., Phys. Lett. B 547, 193 (2002).
F. Raiola et al., Phys. Lett. A 719, 37c (2003).
F. Lagoutine et al., Int. J. Appl. Radiat. Isot. 26, 131 (1975).
E.B. Norman et al., Phys. Lett. B 519, 15 (2001).
Z.Y. Liu et al., Chin. Phys. Lett. 20 No. 6, 829 (2003).
Zs. Fülöp et al., Nucl. Phys. A 758, 697c (2005).
L. Gialanella et al., Nucl. Instrum. Methods B 197, 150 (2002).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2006 Società Italiana di Fisica / Springer-Verlag
About this paper
Cite this paper
Limata, B.N. et al. (2006). New measurement of 7Be half-life in different metallic environments. In: Fülöp, Z., Gyürky, G., Somorjai, E. (eds) The 2nd International Conference on Nuclear Physics in Astrophysics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-32843-2_29
Download citation
DOI: https://doi.org/10.1007/3-540-32843-2_29
Received:
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-32842-1
Online ISBN: 978-3-540-32843-8
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)