Published February 1, 1983
| public
Journal Article
Relaxation time of an adsorbing ^4He film
- Creators
- Sinvani, M.
- Goodstein, D.
Chicago
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Abstract
The readsorption of ^4He atoms on a constantan heater surface was studied after flash desorption by the heat pulse technique. The replenishment of the desorbed film after the heat pulse was found to be essentially linear with the time between the pulses, reaching saturation at some critical value, t_(rc), which strongly depended on the pressure in the vapor, P_g. With the help of kinetic theory for the flux of atoms striking a surface, the measured value of t_(rc) could be calibrated to give P_g. We have verified this formula directly and used it to measure pressures down to 10^(−9) Torr.
Additional Information
© 1983 Published by Elsevier B.V. Received 1 June 1982; accepted for publication 27 June 1982. This work was supported by ONR Contract Number N0014-80-C-0447. We are happy to acknowledge discussions with Dr. Peter Taborek, who first suggested that pressures might be measured by means of t,c, and with Dr. Milton Cole. This work was supported by ONR Contract Number N0014-80-C-0447. One of us (M.S.) wishes to acknowledge the support of a Bantrell Fellowship.Additional details
- Eprint ID
- 62880
- DOI
- 10.1016/0039-6028(83)90465-X
- Resolver ID
- CaltechAUTHORS:20151214-123256868
- Office of Naval Research (ONR)
- N0014-80-C-0447
- Bantrell Fellowship
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2015-12-14Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field