Role of Ionizztion in Radiatin Annealing
Technical Report
·
OSTI ID:966637
- North American Aviation, Inc., Park City, KS (United States)
The role of ionization in the phenomenon of" radiation annealing" of graphite has been studied by using a I-MeV electron beam. Changes in the C-axis of a sample with a Hanford irradiation of 460 Mwd/ct were studied. Two thermal anneals of 4 hours each at 350°C proved sufficient to complete the thermal annealing at this temperature. The samples were then irradiated for 7- 1/2 hrs at a temperature of 340 °C. The samples received an irradiation of 47 microampere-hours, equivalent in ionization to an exposure of 200 Mwd/ct in a Hanford reactor. No changes were noted as a result of the electron bombardment. It is concluded that the ionization is not of major importance in radiation annealing.
- Research Organization:
- North American Aviation, Inc., Park City, KS (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AT(11-1)-GEN-8
- OSTI ID:
- 966637
- Report Number(s):
- NAA-SR--1025
- Country of Publication:
- United States
- Language:
- English
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