X-ray measurement apparatus for the measurement of x-ray doses a

Details X-ray measurement apparatus for the measurement of x-ray doses a X-ray measurement apparatus for the measurement of x-ray doses a

1990-04-24

1992-01-14

Westin, Edward P.

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

25037007, 25037001, 378 98, G01D 1800

Patent

active

050816640

ABSTRACT:
A compact X-ray measurement apparatus is realized for dose as well as energy measurements by using an X-ray detector comprising scintillation crystals coupled to photodiodes. To this end, the current generated by the photodiodes is periodically applied to an integrator and the photodiode is charged across its intrinsic capacitance during sampling and reset periods of the integrator. Loss of charge is thus avoided and a low X-ray dose can be measured. The X-ray measurement apparatus can be calibrated by calibration of the photodiodes.

REFERENCES:
patent: 4070581 (1978-01-01), Gibbons et al.
patent: 4442496 (1984-04-01), Simon et al.
patent: 4843619 (1989-06-01), Sheridan
patent: 4880981 (1989-11-01), Johnston
patent: 4916727 (1990-04-01), Sheridan
patent: 4942596 (1990-07-01), Eberhard et al.
Brochure--"The Nero 6000B Makes X-ray Machine Performance Studies as Easy as Possible . . . ," 6 pages, 1985.

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