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Investigation of Single Crystal Zircon, (Zr,Pu)SiO4, Doped with 238Pu

Published online by Cambridge University Press:  11 February 2011

John M. Hanchar ,
Boris E. Burakov ,
Evgeniy B. Anderson  and
Maria V. Zamoryanskaya
John M. Hanchar
Affiliation:
The George Washington University, Department of Earth and Environmental Sciences, Washington DC, 20006, USA, fax: 202–994–0450, e-mail: [email protected]
Boris E. Burakov
Affiliation:
V.G. Khlopin Radium Institute, 28, 2-nd Murinskiy ave., St. Petersburg, 194021, Russia, fax: (7)-(812)-346–1129; e-mail: [email protected]; [email protected] [email protected]
Evgeniy B. Anderson
Affiliation:
V.G. Khlopin Radium Institute, 28, 2-nd Murinskiy ave., St. Petersburg, 194021, Russia, fax: (7)-(812)-346–1129; e-mail: [email protected]; [email protected] [email protected]
Maria V. Zamoryanskaya
Affiliation:
V.G. Khlopin Radium Institute, 28, 2-nd Murinskiy ave., St. Petersburg, 194021, Russia, fax: (7)-(812)-346–1129; e-mail: [email protected]; [email protected] [email protected]
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Abstract

Single crystals of 238Pu doped zircon (from 0.3 to 3.5 mm in size) were successfully grown for the first time ever using a Li-Mo flux synthesis method. The incorporation of Pu ranged from 1.9 to 4.7 wt. % el. (with approximately 81 wt.% of 238Pu isotope). The crystals obtained were pink-brown, and then over a period of five months changed to a brown color, and glow in the dark. The intensity of the CL emission in the Pu doped crystals is correlated with the Pu content, and the CL emission showed no change 141 days after the initial CL measurements were made. Single crystal X-ray diffraction results obtained 141 days after synthesis indicate unit cell parameters (in angstroms): a = 6.6267(15), c = 5.9992(10) and a cell volume of 263.41(10). Radiation damage calculations indicate that after only a short period of time, six months (∼3.3 ×1014 α-decay events per milligram), these zircon crystals have already accumulated significant α-induced radiation damage.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 757: Symposium II – Scientific Basis for Nuclear Waste Management XXVI , 2002 , II6.9
Copyright
Copyright © Materials Research Society 2003

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