Radiological image intensifier tube having an aluminum layer

Details Radiological image intensifier tube having an aluminum layer Radiological image intensifier tube having an aluminum layer

1997-12-24

1999-11-09

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313543, 313106, H01J 4014

Patent

active

059819359

ABSTRACT:
The disclosure relates to radiological image intensifier tubes comprising a vacuum electron tube and a luminescent observation screen comprising means to improve the contrast of the image. These means consist of a layer of aluminium with a thickness of at least 1 micrometer, partially absorbent for the incident electrons, placed in the path of the electrons generated by the tube and in the vicinity of the layer of luminophores. The deposited layer has the effect of reducing, firstly, the quantity of electrons re-emitted from the observation screen to the tube and, secondly, the proportion of these electrons that return to strike the layer of luminophores. Application to radiological type image intensifier tubes.

REFERENCES:
patent: 3911165 (1975-10-01), Kanai et al.
patent: 5146076 (1992-09-01), Raverdy et al.
patent: 5248874 (1993-09-01), Raverdy
patent: 5256870 (1993-10-01), Raverdy et al.
patent: 5315103 (1994-05-01), Raverdy et al.
Patent Abstracts of Japan, vol. 96, No. 5, May 31, 1996, and JP 08 022784 A, Jan. 23, 1996.

Affiliated with

Also associated with

Rating

Radiological image intensifier tube having an aluminum layer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radiological image intensifier tube having an aluminum layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiological image intensifier tube having an aluminum layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1459581