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Author: WU-C-Y-R; YANG-B-W; JUDGE-D-L
Authors Abstract: N
Title: TOTAL ION DESORPTION YIELDS OF H2O, D2O, CH3OH, CD3OD AND
WATER-METHANOL MIXED ICES IRRADIATED AT 584 ANGSTROM
Source: PLANETARY AND SPACE SCIENCE, vol. 42, issue 4, (APR, 1994)
: pp. 273-277.
Abstract: Preliminary measurements of the total ion desorption yields
of several pure and mixed molecular ices have been carried out
using the He I 584 angstrom resonance radiation as the incident
photon beam. The various ice samples were prepared at 77 K in
an ultrahigh vacuum system. The total ion desorption yields of
H2O ices, D2O ices, CH3OH ices, CD3OD ices, H2O-CH3OH mixed ices
and D2O-CD3OD mixed ices were determined. Minor isotopic
effects on the ion desorption processes of the above-mentioned
ices have been observed. There is a clear enhancement in the
ion desorption yields of water-methanol mixed ices in comparison
with pure ices. Such data are required in the interpretation of
the gaseous atmospheres of comets, asteroids, icy planets,
satellites and rings, and interstellar icy grains.
English Abstract: Y
Pub. Type: ARTICLE
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