Method of calibrating multi-crystal single block radiation detec

Details Method of calibrating multi-crystal single block radiation detec Method of calibrating multi-crystal single block radiation detec

1997-09-29

1999-11-16

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

2502521, 250367, 250369, G01T 1164, G01T 1202

Patent

active

059862661

ABSTRACT:
A method of calibrating multi-crystal, single block radiation detectors for use in positron emission tomography and other devices with multi-crystal, single block radiation detectors that are used to determine gamma ray distribution. The detector units are individually subjected to a gamma ray flood source wherein the gamma ray has an energy in excess of about 0.7 MeV, and preferably above about 1.0 MeV. Energies of up to about 10 MeV are usable with the calibration method, with higher energies giving rise to containment and handling problems because of the energy. The light produced within each of the crystals is converted to electrical signals through, for example, photomultiplier tubes. These signals are used to generate a lookup map, this map providing information as to the correct positioning and response of each crystal in the array of crystals of the block detector. The method is useful for detector blocks of of many sizes that are divided into arrays of a large number of crystals.

REFERENCES:
patent: 4223221 (1980-09-01), Gambini et al.
patent: 4256960 (1981-03-01), Snider
patent: 4424446 (1984-01-01), Inbar et al.
patent: 4517460 (1985-05-01), Meulenbrugge et al.
patent: 5171986 (1992-12-01), Loomis et al.
patent: 5227634 (1993-07-01), Ryuo et al.
"An Improved Multicrystal 2-D BGO Detector for PET", J.G. Rogers et al. IEEE Transactions on Nuclear Science, vol. 39, No. 4, pp. 1063-1068, 1992.

Affiliated with

Also associated with

Rating

Method of calibrating multi-crystal single block radiation detec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of calibrating multi-crystal single block radiation detec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of calibrating multi-crystal single block radiation detec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1327650