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Gadolinium metastable states population distributions and atomic density under high-rate electron beam evaporation

Abstract

Metastable states population distributions of gadolinium atoms under high-rate electron beam evaporation were measured by laser light absorption. The experiments were carried out under high atomic density of 10{sup 12} {approx} 10{sup 13} atoms/cm{sup 3} at the light absorption zone and following several vapor characteristics were found: (1) The atomic excitation temperature derived from metastable states population distribution was considerably lower than the evaporation surface temperature and decreased with increasing the evaporation rate. (2) Atomic vapor is almost free from the cluster formation caused by a rapid expansion into a high vacuum. (3) The atomic density is in reciprocal proportion to the square of the distance from the evaporation surface. (author).
Authors:
Nishimura, Akihiko; Arisawa, Takashi; Ohba, Hironori; Shibata, Takemasa [1] 
  1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Publication Date:
Oct 01, 1991
Product Type:
Technical Report
Report Number:
JAERI-M-91-178
Reference Number:
SCA: 400202; 661220; PA: JPN-92:001074; SN: 92000680874
Resource Relation:
Other Information: PBD: Oct 1991
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GADOLINIUM; METASTABLE STATES; EVAPORATION; ELECTRON BEAMS; ENERGY SPECTRA; HEATING; EXCITATION; ATOMS; VAPORS; LASER RADIATION; TRANSMISSION; 400202; 661220; ISOTOPE EFFECTS, ISOTOPE EXCHANGE, AND ISOTOPE SEPARATION; PARTICLE BEAM PRODUCTION AND HANDLING; TARGETS
OSTI ID:
10127612
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE92782008; TRN: JP9201074
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
JPN
Size:
19 p.
Announcement Date:
Jul 04, 2005

Citation Formats

Nishimura, Akihiko, Arisawa, Takashi, Ohba, Hironori, and Shibata, Takemasa. Gadolinium metastable states population distributions and atomic density under high-rate electron beam evaporation. Japan: N. p., 1991. Web.
Nishimura, Akihiko, Arisawa, Takashi, Ohba, Hironori, & Shibata, Takemasa. Gadolinium metastable states population distributions and atomic density under high-rate electron beam evaporation. Japan.
Nishimura, Akihiko, Arisawa, Takashi, Ohba, Hironori, and Shibata, Takemasa. 1991. "Gadolinium metastable states population distributions and atomic density under high-rate electron beam evaporation." Japan.
@misc{etde_10127612,
title = {Gadolinium metastable states population distributions and atomic density under high-rate electron beam evaporation}
author = {Nishimura, Akihiko, Arisawa, Takashi, Ohba, Hironori, and Shibata, Takemasa}
abstractNote = {Metastable states population distributions of gadolinium atoms under high-rate electron beam evaporation were measured by laser light absorption. The experiments were carried out under high atomic density of 10{sup 12} {approx} 10{sup 13} atoms/cm{sup 3} at the light absorption zone and following several vapor characteristics were found: (1) The atomic excitation temperature derived from metastable states population distribution was considerably lower than the evaporation surface temperature and decreased with increasing the evaporation rate. (2) Atomic vapor is almost free from the cluster formation caused by a rapid expansion into a high vacuum. (3) The atomic density is in reciprocal proportion to the square of the distance from the evaporation surface. (author).}
place = {Japan}
year = {1991}
month = {Oct}
}