Abstract
In this paper, the Laplace inversion technique, i.e., CONTIN program, has been used to analyze the positron lifetime spectra to obtain continuous annihilation rate distribution (ARD). Two kinds of materials were studied by measuring the positron ARD. In dealuminated Y-type zeolite, five peaks were observed, and the longest component is related to o-Ps lifetime in the secondary pores. In GaAs and in InP semiconductors, the native defects were successfully identified by the difference in positron ARD shape. More evidently, when InP sample was irradiated with high energy heavy ions, the positron ARD showed difference with different irradiation dose. These results indicate that the CONTIN analysis is a good complement to the PATFIT program.
Article PDF
Similar content being viewed by others
References
A. DUSPAQUIER, A. P. MILLS, Jr. (Eds), Positron Spectroscopy of Solids, Amsterdam, Oxford, Tokyo, Washington D.C., 1995.
PATFIT package Risó National Laboratory, Roskide, Denmark, 1989.
D. M. SCHRADER, S. G. USMAR, in: Positron Annihilation Studies on Fluids, S. C. SHARMA (Ed.), World Scientific, Singapore, 1988, p. 215.
S. W. PROVENCHER, Comput. Phys. Commun., 27 (1982) 299.
R. B. GREGORY, Y. ZHU, Nucl. Instrum. Methods Phys. Res., A290 (1990) 172.
Z. TANG, C. L. WANG, S. J. WANG, Chinese Science Bulletin, (1995) 541.
Y. C. JEAN, in Ref. 1. Positron Spectroscopy of Solids, Amsterdam, Oxford, Tokyo, Washington D. C., p. 563.
Z. TANG, S. J. WANG, X. H. GAO, Phys. Rev., B50 (1994) 3209.
A. ZUKAL, V. PATELOVÁ, U. LOHSE, Zeolites, 6 (1986) 133.
J. LYNCH, F. RAATZ, P. DUFRESNE, Zeolites, 7 (1987) 333.
G. A. BARAFF, M. SCHLÜTER, Phys. Rev. Lett., 55 (1985) 1327.
M. J. PUSKA, J. Phys., Condens Matt., 1 (1989) 7347.
HONGQI XU, U. LINDEFELT, Phys. Rev., B41 (1990) 5979.
T. BRETAGNON, S. DANNEFAER, D. KERR, J. Appl. Phys., 73 (1993) 4697.
HONGQI XU, Phys. Rev., B42 (1990) 11295.
R. J. JANSEN, Phys. Rev., B41 (1990) 7666.
M. ALATALO, R. M. NIEMINEN, M. J. PUSKA, A. P. SEITSONEN, R. VIRKKANEN, Phys. Rev., B47 (1993) 6381.
Author information
Authors and Affiliations
Additional information
Supported by the National Natural Science Foundation of China.
Rights and permissions
About this article
Cite this article
Wang, S.J., Chen, Z.Q. & Ma, L. The application of Laplace inversion technique in analysis of positron lifetime spectra. Journal of Radioanalytical and Nuclear Chemistry, Articles 211, 153–160 (1996). https://doi.org/10.1007/BF02036267
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02036267