Simultaneous measurement of time-resolved 2-D temperature distribution of evaporation surface heated by swept electron beam [in AVLIS]

Author

Chen, Yen-wei

Author_Institution

Fac. of Eng., Ryukyus Univ., Okinawa, Japan

Volume

50

Issue

3

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

781

Lastpage

785

Abstract

The temporal variation and spatial distribution of metallic gadolinium surface temperature during electron beam evaporation have been measured simultaneously by a high-speed video camera with a bandpass filter. The temperature was determined from the radiation intensity recorded by the bandpass, high-speed video camera coupled with a bandpass filter, after calibration with a two-color thermometer. Analytical results indicate that temporal variation of the surface temperature will cause a significant fluctuation of the atomic beam

Keywords

blackbody radiation; electron beam applications; electron beam effects; evaporation; gadolinium; laser isotope separation; temperature distribution; temperature measurement; Gd; Planck´s law; atomic beam fluctuation; atomic vapour laser isotope separation; band-pass filter; blackbody radiation; calibration; electron beam evaporation; high-speed video camera; metal surface temperature; radiation intensity; simultaneous measurement; spatial distribution; swept electron beam heating; temporal variation; time-resolved 2D temperature distribution; two-color thermometer; Atom lasers; Atomic beams; Band pass filters; Cameras; Electron beams; Heating; Laser beams; Laser modes; Surface emitting lasers; Temperature distribution;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.930454

Filename

930454