PRELIMINARY MEASUREMENT OF H-2 PRESSURE THROUGH DETECTION OF PHOTOELECTRONS IN VACUUM RANGE FROM 10(-3) TO 10(-6) PA

Authors
SEKINE S KOKUBUN K ICHIMURA S
Citation
S. Sekine et al., PRELIMINARY MEASUREMENT OF H-2 PRESSURE THROUGH DETECTION OF PHOTOELECTRONS IN VACUUM RANGE FROM 10(-3) TO 10(-6) PA, JPN J A P 2, 33(9A), 1994, pp. 120001274-120001276
Citations number
19
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS → ACNP
Volume
33
Issue
9A
Year of publication
1994
Pages
120001274 - 120001276
Database
ISI
SICI code
Abstract
H-2 molecules in a vacuum chamber were nonresonantly ionized by an int ense visible laser pulse, and the number of photoelectrons produced wa s measured as a function of H-2 pressure. The signal intensity was pro portional to H-2 pressure in the range from 1 x 10(-3) to 1 x 10(-6) P a. The present result showed experimentally that the detection of lase r-induced photoelectrons can be applied for the measurement of pressur e in the ultrahigh-vacuum range.