Radiation Damage in Single Crystal CsI(Tl) and Polycrystal CsI

O Barnouin; A Procoli; H Chung; GH Miley

doi:10.1520/STP26522S

SYMPOSIA PAPER Published: 01 January 1990

STP26522S

Radiation Damage in Single Crystal CsI(Tl) and Polycrystal CsI

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Radiation damage in single crystal CsI(Tl) and polycrystal CsI was assessed by measuring the changes in radioluminescent intensity caused by successive neutron and gamma ray pulses from a TRIGA nuclear reactor. The radioluminescent intensity from the single crystal decreases within nine pulses by 30% in the near infrared range (0.7–4.5 μm) and by 25% in the visible range (0.2–1 μm) before staying constant. For the polycrystal CsI, the emission in the visible range decreases by 60% within 6 pulses and then remains constant, whereas no measurable emission is observed in the infrared. Finally, a heating and cooling cycle is shown to repair the damage for both crystals.

Author Information

Barnouin, O

Procoli, A

Chung, H

Miley, GH

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Details

Developed by Committee: E13

Pages: 568–575

DOI: 10.1520/STP26522S

ISBN-EB: 978-0-8031-5157-4

ISBN-13: 978-0-8031-4478-1

Radiation Damage in Single Crystal CsI(Tl) and Polycrystal CsI

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