Ultrarapid camera for visulaizing the intensity profile of a las

Details Ultrarapid camera for visulaizing the intensity profile of a las Ultrarapid camera for visulaizing the intensity profile of a las

1993-07-28

1994-11-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313529, H01J 4014

Patent

active

053629590

ABSTRACT:
The invention relates to an ultrarapid camera for visualizing the intensity profile of a laser pulse. This camera comprises in vacuum housing a photocathode, an extraction grid, focalization electrodes, deflection plates and a visualization screen. According to the invention, the electron emitting photocathode is constituted by at least one metal tip (3, 12) and means (9, 10) are provided to send said laser pulse (13) into a zone situated in front of said tip.

REFERENCES:
patent: 4868380 (1989-09-01), Booman et al.
patent: 5013902 (1991-05-01), Allard
patent: 5221836 (1993-06-01), Kinoshita
IBM Technical Disclosure Bulletin, vol. 26, No. 12, May 1984, p. 6604.

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