High event rate gamma camera

Details High event rate gamma camera High event rate gamma camera

1997-12-31

1999-09-14

Westin, Edward P.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

25036309, G01T 1208

Patent

active

059526629

ABSTRACT:
An apparatus for use with a gamma camera to increase count rate without causing dead time or pile up, the apparatus including a first processor optimized for simplicity and minimum dead time but with moderate to poor spatial resolution for generally determining the impact point of a photon on a scintillation crystal and a second digital processor which uses the general position information from the first processor to identify a subset of PMT intensity signals for further processing to identify the precise impact point location.

REFERENCES:
patent: 4455616 (1984-06-01), Inbar
patent: 4780823 (1988-10-01), Stoub et al.
patent: 5508524 (1996-04-01), Goldberg et al.
The Effect of Pixel Geometry On Spatial and Spectral Resolution in a CdZnTe Imaging Array, Eskin, et al., 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, vol. 1, pp. 544-548, Oct. 21-18, 1995
Performance of CdZnTe Coplanar-Grid Gamma-Ray Detectors, IEEE Transactions on Nuclear Science, vol. 43, No. 3, pp. 1481-1486, Jun. 1996, Luke, et al.

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