Thermoluminescence of Thoria
Journal Article
·
· Journal of Chemical Physics
A large symmetrical glow peak was found in unirradiated thoria at 195 plus or minus 5 deg C. Upon irradiation with Co/sup 60/, a second smaller peak appeared at 65 plus or minus 5 deg C. After thoria was subjected to about 10/ sup 4/ r, beth peaks began to grow. The time to decay to one-half intensity was measured at 100, 125, and 150 deg C for the 195 deg C peak in unirradiated thoria. The activation energies based on calculations for seven curves are 1.22 plus or minus 0.05 and 0.65 plus or minus 0.10 ev for the 195 and 65 deg C peaks, respectively. Assuming a first-order process, the 195 deg C peak is definitely established as the result of a first-order reaction. Indications that the 65 deg C peak may be the result of a second-order decay are given. (P.C.H.)
- Research Organization:
- Marquette Univ., Milwaukee
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-012262
- OSTI ID:
- 4789004
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 4 Vol. 36; ISSN JCPSA6; ISSN 0021-9606
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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