Radiolysis of solid CO2 and future electron spin resonance dating on outer planets

Paramagnetic radicals have been detected in solid CO2 with gamma irradiation at 77 K with the measurement of electron spin resonance (ESR). Species of O3(-), CO3(-), CH3, SO3(-), and HO2 are identified. The lifetimes of O3(-), CH3 and HO2 at several temperatures were obtained by isothermal annealing...

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Veröffentlicht in:	Japanese Journal of Applied Physics 1994, Vol.33 (10B), p.L1453-L1455
Hauptverfasser:	HIRAI, M, IKEYA, M, TSUKAMOTO, Y, YAMANAKA, C
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Exact sciences and technology General and physical chemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Radiation chemistry
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Zusammenfassung:	Paramagnetic radicals have been detected in solid CO2 with gamma irradiation at 77 K with the measurement of electron spin resonance (ESR). Species of O3(-), CO3(-), CH3, SO3(-), and HO2 are identified. The lifetimes of O3(-), CH3 and HO2 at several temperatures were obtained by isothermal annealing experiments. Their stability at the ambient temperature of Mars and icy satellites was estimated from the Arrhenius plot of the lifetime for the future possibility of ESR dating of solid CO2. (Author)
ISSN:	0021-4922 1347-4065
DOI:	10.1143/jjap.33.L1453