Radiant energy – Calibration or standardization methods
Patent
1990-09-04
1992-04-07
Hannaher, Constantine
Radiant energy
Calibration or standardization methods
25636309, 25637001, G01T 100, G01D 1800
Patent
active
051030926
ABSTRACT:
A method of and apparatus for radiation detection including temperature control so that the temperature of the radiation detector, which includes a photodiode with a leakage current of 0.4-18 pA, is controlled to a setup temperature plus or minus 0.35.degree. C. With this condition established, offset data and reference data of the detector are collected in the absence of a body under test, offset data immediately before an actual signal measurement is collected and thereafter signal data through the exposure of a body under test is collected. The collected data are subjected to sensitivity calibration and offset calibration, thereby to obtain projection data, and image data is obtained through image processing of the projection data.
REFERENCES:
patent: 4323977 (1982-04-01), Aseneau
patent: 4424446 (1984-01-01), Inbar et al.
patent: 4517460 (1985-05-01), Meulenbeugge et al.
patent: 4670840 (1987-06-01), Freundlich
patent: 4868393 (1989-09-01), Kiri et al.
patent: 4882495 (1989-11-01), Tanaka
patent: 4891829 (1990-01-01), Deckman et al.
patent: 4899054 (1990-02-01), Barfod
Nakagawa Manabu
Shimizu Toshihiko
Takahashi Tetsuhiko
Glick Edward J.
Hannaher Constantine
Hitachi Medical Corporation
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