Title :
Simultaneous measurement of time-resolved 2-D temperature distribution of evaporation surface heated by swept electron beam [in AVLIS]
Author_Institution :
Fac. of Eng., Ryukyus Univ., Okinawa, Japan
fDate :
6/1/2001 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
