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Chemically induced dynamic nuclear polarisation in thermally stimulated free radical reactions in γ-irradiated UO2+2 :SrSO4 phosphor

✍ Scribed by Mithlesh Kumar; M.D. Sastry; A.G.I. Dalvi; R.M. Kadam


Book ID
103023930
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
288 KB
Volume
134
Category
Article
ISSN
0009-2614

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✦ Synopsis


From electron paramagnetic resonance and thermally stimulated luminescence studies of y-irradiated UO$+ :SrS04, thermally stimulated reactions between H atoms and SO; have been identified as being responsible for the luminescence glow at 380 K. Close to this temperature, the EPR spectrum of hydrogen exhibits features compatible with chemically induced dynamic nuclear polarisation (CIDNP) suggesting that this reaction proceeds via the formation of radical pairs.