X-ray detector having an entrance section including a low energy

Details X-ray detector having an entrance section including a low energy X-ray detector having an entrance section including a low energy

1996-06-27

1998-09-22

O'Shea, Sandra L.

Electric lamp and discharge devices

Photosensitive

With optical device

250211VT, 313542, H01J 4000, H01J 3150

Patent

active

058119329

ABSTRACT:
An X-ray image intensifier tube (1) includes an entrance section (2) for converting high-energy X-rays of from 100 keV to 120 keV into an electron beam (10). The entrance section (2) had a conversion layer (3) with a filter layer (5) for absorbing a part of comparatively low energy (from 60 keV to 80 keV) of the X-rays and a conversion layer for converting the high-energy X-rays of approximately from 100 keV to 120 keV into radiation whereto the photocathode is sensitive.

REFERENCES:
patent: 4725724 (1988-02-01), Van Der Velden
patent: 4820926 (1989-04-01), Popma et al.
patent: 5315103 (1994-05-01), Raverdy et al.
patent: 5367155 (1994-11-01), Colditz et al.

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