Irradiation Yields of Radicals in Gamma-Irradiated Ice at 4.2° and 77°K
The electron paramagnetic resonance (EPR) spectra of both ice and deuterated ice that are subjected to gamma irradiation at 4.2 deg K are presented and discussed. Experimental radical irradiation yields at 4.2 deg K are reported for the H/sub 2/O system as a function of sustained irradiation dosage. A comparison between the irradiation yields at 4.2 and 77 deg K is given and the resulting similarities discussed in terms of intra-spur reactions. Evidence is presented for the existence of an appreciable isotope effect for the irradiation yields in a mixture of H/sub 2/O and D/sub 2/O. (auth) 2O751 The products obtained when CO/sub 2/ is subjected to the action of slow electrons in an ozonizer are CO, O/sub 2/, and O/sub 3/. The effect of adding small concentrations of C/sub 3/O/sub 2/ to the CO/sub 2/ current before and after its passage through the discharge is investigated. The results may be explained in terms of two fast reactions: C/sub 3/O/sub 2/ + O yields C/sub 2/O + CO/sub 2/; C/sub 2/O + 0 yields 2 CO, and two slow reactions: C/sub 3/O/sub 2/ + O/sub 2/ yields CO/sub 2/ + O/sub 2/ + C/sub 2/O; C/sub 2/O; C/sub 2/O + 0/sub 3/ yields 2 CO + O/sub 2/. The part played by these re actions in the mechanisms of CO/sub 2/ radiolysis and CO photolysis is discussed.
- Research Organization:
- Aerojet-General Corp., Azusa, Calif.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-020750
- OSTI ID:
- 4089721
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 5 Vol. 34; 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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