Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1996-06-21
1998-04-14
Glick, Edward J.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
2504931, 2504941, G21K 500, G21K 502
Patent
active
057395403
ABSTRACT:
A nuclear medicine diagnostic apparatus, particularly involving emission computed tomography, wherein absorption correction is performed by a gamma ray source including a plurality of line sources arrayed in a common plane. Each line source produces a radiation distribution having a peak and defining a half-width distance at which the radiation from the line source is attenuated by one-half. The plurality of line sources are arranged at a pitch equal to the half-width distance or an integral multiple of the half-width distance. In one embodiment, a serpentine line source is used having straight line portions and a plurality of bent portions, with the straight line portions arrayed parallel to each other at a pitch equal to the half-width distance or an integral multiple of the half-width distance.
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Tan et al., "A Scanning Line Source for Simuitaneous Emission and Transmission Measurements in SPECT," Journal of Nuclear Medicine, vol. 34, No. 10, Oct. 1993, pp. 1752-1760.
Ichihara Takashi
Kawahara Hiroharu
Motomura Nobutoku
Glick Edward J.
Kabushiki Kaisha Toshiba
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