Radiation Damage in bcc Metal Nb Studied by Perturbed Angular Correlation and Positron Annihilation Techniques

Chin. Phys. Lett.

1992, Vol. 9

Issue (12): 656-658 DOI:

Original Articles

Radiation Damage in bcc Metal Nb Studied by Perturbed Angular Correlation and Positron Annihilation Techniques

ZHU Shengyun;ZHENG Shengnan;LI Anli;HUANG Hanchen;LI Donghong;XU Guoji

China Institute of Atomic Energy, Beijing 102413

Cite this article:

ZHU Shengyun, ZHENG Shengnan, LI Anli et al 1992 Chin. Phys. Lett. 9 656-658

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Abstract 9 The radiation damage induced by the reactor neutrons in body-centered-cubic metal Nb is simulated by the 81 MeV carbon irradiation to a total dose of 2.5x10¹⁶/cm². The created radiation damage and its thermal annealing behavior are studied by positron annihilation and perturbed angular correlation techniques. The results show the existence of both mono- and di-vacancies in Nb after the irradiation. Most of the defects caused by the radiation damage disappear after annealing around 960K. The radiation damage is completely annealed at 1058K.

Keywords: 61.80.-x

Published: 01 December 1992

PACS:

61.80.-x

(Physical radiation effects, radiation damage)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1992/V9/I12/0656

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	ZHU Shengyun
	ZHENG Shengnan
	LI Anli
	HUANG Hanchen
	LI Donghong
	XU Guoji

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