Medical gamma ray imaging

Details Medical gamma ray imaging Medical gamma ray imaging

1982-01-27

1984-11-27

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

G01T 118

Patent

active

044853076

ABSTRACT:
A method and apparatus for determining the distribution of a position-emitting radioisotope into an object, the apparatus consisting of a wire mesh radiation converter, an ionizable gas for propagating ionization events caused by electrodes released by the converter, a drift field, a spatial position detector and signal processing circuitry for correlating near-simultaneous ionization events and determining their time differences, whereby the position sources of back-to-back collinear radiation can be located and a distribution image constructed.

REFERENCES:
patent: 3262002 (1966-07-01), Kreplin
patent: 3359421 (1967-12-01), Perez-Mendez et al.
patent: 3603831 (1971-09-01), Kimmel
patent: 3703638 (1972-11-01), Allemand et al.
patent: 3772521 (1973-11-01), Perez-Mendez
patent: 3786270 (1974-01-01), Borkowski et al.
patent: 4320299 (1982-03-01), Bateman et al.

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