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

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

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jjapl..33l1453h&link_type=abstract

Japanese Journal of Applied Physics, Part 2: Letters (ISSN 0021-4922), vol. 33, no. 10B, p. L1453-L1455

Physics

Crystal Defects, Crystal Lattices, Electron Irradiation, Electron Paramagnetic Resonance, Gamma Rays, Gas Giant Planets, Geochronology, Icy Satellites, Mars Surface, Planetary Temperature, Radiolysis, Solidified Gases, Ambient Temperature, Annealing, Carbon Dioxide, Estimating, Hydroxyl Radicals, Methyl Compounds, Peroxides, Reaction Kinetics, Solid Cryogens, Time Measurement

Scientific paper

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.

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