Study of radiation damage in zircon (ZrSiOâ‚„) crystals using fission tracks and d-spacing values of (112) plane

Amin, Y.M. (2006) Study of radiation damage in zircon (ZrSiOâ‚„) crystals using fission tracks and d-spacing values of (112) plane. Jurnal Fizik Malaysia, 27 (1). pp. 21-25. ISSN 0128-0333

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Official URL: http://fizik.um.edu.my/ifm/jfm.htm

Abstract

Radiation damage in zircon is caused primarily by α-particles from the chain decays of uranium and thorium and to certain extents by fission fragments of uranium present in the crystals as impurities. We have measured the damage by measuring the fission track densities and the d-spacing of the 112-plane. It is found that the track density and hence radiation damage varies from 1.4 × 10� tracks/cm² for the least damage zircon to 2.6 × 10� tracks/cm² for the most damage zircon studied. The d-value for 112-plane is found to be 2.5136 Å and 2.5177 Å for the least damage to the most damage zircon respectively. Damage in zircon is healed by annealing as can be seen from the reduction in track density and the corresponding decreases in d-spacing of 112-plane. The annealing temperature for complete erasure of the fission track varies from 980°C to 700°C for the most damage to least damage zircon respectively.

Item Type: Article
Uncontrolled Keywords: Radiation damage; Zircon
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Jan 2015 07:47
Last Modified: 16 Jan 2015 07:47
URI: http://eprints.um.edu.my/id/eprint/12153

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