Alpha autoradiography of uranium pellets using particle track detectors. | [Nucleus • 1996]

Author(s):

1. Khalid Jamil: Environment Radiation Group, Radiation Physics Division, Pakistan Institute Nuclear Science Technology, (PINSTECH), Islamabad, Pakistan

2. Fazal-Ur-Rehman: Environment Radiation Group, Radiation Physics Division, Pakistan Institute Nuclear Science Technology, (PINSTECH), Islamabad, Pakistan

3. A. A. Qureshi: Environment Radiation Group, Radiation Physics Division, Pakistan Institute Nuclear Science Technology, (PINSTECH), Islamabad, Pakistan

4. S. Manzoor: Environment Radiation Group, Radiation Physics Division, Pakistan Institute Nuclear Science Technology, (PINSTECH), Islamabad, Pakistan

5. Safdar Ali: Environment Radiation Group, Radiation Physics Division, Pakistan Institute Nuclear Science Technology, (PINSTECH), Islamabad, Pakistan

6. H. A. Khan: Environment Radiation Group, Radiation Physics Division, Pakistan Institute Nuclear Science Technology, (PINSTECH), Islamabad, Pakistan

Abstract:

Alpha auto radiographic technique was employed to observe the variation of physical density of natural UO2 fuel pellets along its radial and cylindrical axes and to determine the presence of non-alpha emitting inclusions in the pellets. The alpha autoradiographs were able to reveal non-alpha emitting inclusions with dimensions as small as 50 µm which were uniformly distributed throughout the volume of the pellets. The results were verified using the method of induced fission radiography in the same pellets using mica track detectors. Alpha autoradiograph showed the presence of physical damage and cracks on the surface of fuel pellets. Alpha autoradiograph using CR-39 track detectors were found to be better than using CN-85. The results of this study show that alpha autoradiograph using CR-39 track detectors would be useful for the study of spent fuel pellets. Specially, the determination of physical density of spent fuel pellets with the method prescribed in this paper would be useful for burn up studies.

Page(s): 45-48

DOI: DOI not available

Published: Journal: Nucleus, Volume: 33, Issue: 1--2, Year: 1996

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