Scintillation camera with pulse height analyzer

Details Scintillation camera with pulse height analyzer Scintillation camera with pulse height analyzer

1983-11-21

1987-04-28

Harkcom, Gary V.

Boots, shoes, and leggings

364571, 250363S, 378901, G06F 1542, G01T 120

Patent

active

046619097

ABSTRACT:
A radiation imaging apparatus provided with a pulse height analyzer for checking whether the pulse height of the energy signal produced in response to each scintillation event falls within an energy window set for the particular (x,y) coordinate position of the scintillation. The pulse height analyzer has a memory for storing a plurality of energy windows each for a particular one of the coordinate positions in the scintillator and each having a particular central level and a particular width such that the nonuniformity of the sensitivity of the detector due to the position-dependency of the energy signal and/or other causes can be corrected. A preliminary pulse height analyzer may be provided to increase the counting rate of energy signals useful for image production.

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patent: 4212061 (1980-07-01), Knoll et al.
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patent: 4274001 (1981-06-01), Nagasawa
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patent: 4323977 (1982-04-01), Arseneau
patent: 4415982 (1983-11-01), Nishikawa
patent: 4529883 (1985-07-01), Yamakawa et al.
patent: 4538227 (1985-08-01), Toraichi et al.
Knoll et al., "Computer Correction of Camera Nonidealities in Gamma Ray Imaging", IEEE Transactions on Nuclear Science, vol. NS-29, No. 4, Aug. 1982, pp. 1272-1279.

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