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Proceedings Paper

Tentative study on flash ultraviolet generator for high-speed microscopy
Author(s): Michiaki Sagae; Eiichi Sato; Tatsumi Usuki; Koetsu Sato; Hidenori Ojima; Kazuyoshi Takayama; Yoshiharu Tamakawa
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Paper Abstract

Tentative study on the flash ultraviolet generator for high- speed microscopy in the atmosphere is described. The ultraviolet generator for fundamental studies consists of the following essential components: a high-voltage generator, a high-voltage main condenser, a thyratron, and a mercury-xenon lamp. The high-voltage condenser is charged up to about 14 kV, and the electric charges in the condenser are discharged to the lamp by closing the thyratron. The flash ultraviolet rays including visible lights are then produced. The radiation intensity increased according to increases in the electrostatic energy in the condenser by increasing the condenser charging voltage. The cathode voltage (- 1 times the tube voltage) and the discharge current were measured by a high-voltage divider and a current transformer, respectively. The peak cathode voltage increased according to increases in the charging voltage, and the value with a charging voltage 14 kV was about -14 kV. When the charging voltage was increased, the tube current increased, and the peak current had a value of less than 0.35 A. The output of ultraviolet rays including visible lights was detected by a pin diode, and the duration was less than 1 microsecond.

Paper Details

Date Published: 17 April 2001
PDF: 8 pages
Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); doi: 10.1117/12.424304
Show Author Affiliations
Michiaki Sagae, Iwate Medical Univ. (Japan)
Eiichi Sato, Iwate Medical Univ. (Japan)
Tatsumi Usuki, Toreck Co., Ltd. (Japan)
Koetsu Sato, Toreck Co., Ltd. (Japan)
Hidenori Ojima, Tohoku Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)
Yoshiharu Tamakawa, Iwate Medical Univ. (Japan)


Published in SPIE Proceedings Vol. 4183:
24th International Congress on High-Speed Photography and Photonics
Kazuyoshi Takayama; Tsutomo Saito; Harald Kleine; Eugene V. Timofeev, Editor(s)

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