System for detecting two X-ray energies

Details System for detecting two X-ray energies System for detecting two X-ray energies

1985-06-13

1989-04-11

Church, Craig E.

X-ray or gamma ray systems or devices

Beam control

Filter

378146, 250367, 2505051, G21K 300

Patent

active

048213063

ABSTRACT:
A system comprising an X-ray source (1), an elongate detector tube (3) including at least one cathode (5) extending in the longitudinal direction of the tube and at least one anode (6) located opposite to the cathode, a slit diaphragm (2), and a filter (4) mounted in the path between the X-ray source (1) and the detector tube (3). The filter (4) blocks relatively low energy X-radiation in a portion of the beam emitted by the source (1). The cathode (5) is provided with an X-ray detection layer consisting of two strips (8',8") extending in the longitudinal direction of the tube (3). One strip (8") receives the radiation passed by the filter (4) and the other strip (8') receives the unfiltered radiation. The one strip (8") is of considerably greater thickness than the other strip (8').

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