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Absolute desorption yields of metastable atoms from the surface of solid rare gases induced by exciton creation |
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| Authors: | T Hirayama A Hayama T Koike T Kuninobu I Arakawa K Mitsuke M Sakurai E V Savchenko |
| Institution: | a Department of Physics, Gakushuin University, Mejiro, Toshima, Tokyo 171, Japan b Institute for Molecular Science, Myodaiji, Okazaki 444, Japan c Department of Physics, Kobe University, Nada, Kobe 657, Japan d B. Verkin Institute for Low Temperature Physics and Engineering, Kharkov 310164, Ukraine |
| Abstract: | Absolute yields of the metastable excited atoms desorbed from the surfaces of solid Ne and Ar by the creation of surface and bulk excitons have been measured using monochromated synchrotron radiation as a selective excitation source. We have obtained the absolute yields of (2.3 ± 0.7) × 10−3, (1.4 ± 0.4) × 10−3, and (7.8 ± 2.3) × 10−4 atoms/photon at the excitation of S1, B1 and S′ exciton for Ne, respectively, and 1 × 10−5 atoms/photon at S1 excitation for Ar. The probability for metastable atom desorption is found to be about 2 to 10% at the excitation of S1 exciton on the surface of solid Ne. |
| Keywords: | Absolute desorption yield Desorption probability DIET PSD Rare gas solid Synchrotron radiation |
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