Edge resolved dual scintillator gamma ray detection system and method
First Claim
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1. A detector, comprising:
- a first position sensitive radiation detector having a first radiation sensitive area and a second radiation insensitive area;
a first scintillator having a first decay time, located adjacent to the first radiation sensitive area; and
a second scintillator having a second decay time different than the first decay time, located adjacent to the second radiation insensitive area and being optically coupled to the first scintillator.
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Abstract
A detector includes a first position sensitive radiation detector having a first radiation sensitive area and a second radiation insensitive area. The detector further includes a first scintillator having a first decay time, located adjacent to the first radiation sensitive area and a second scintillator having a second decay time different than the first decay time, located adjacent to the second radiation insensitive area and being optically coupled to the first scintillator.
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Citations
29 Claims
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1. A detector, comprising:
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a first position sensitive radiation detector having a first radiation sensitive area and a second radiation insensitive area;
a first scintillator having a first decay time, located adjacent to the first radiation sensitive area; and
a second scintillator having a second decay time different than the first decay time, located adjacent to the second radiation insensitive area and being optically coupled to the first scintillator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A PET detection system, comprising:
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a first detector ring;
a second detector ring adjacent to and coaxial with the first detector ring;
a first PS-PMT located on the first detector ring;
a second PS-PMT located on the second detector ring, adjacent to the first PS-PMT, such that a first edge area of the first PS-PMT detection surface is adjacent to a first edge area of the second PS-PMT detection surface;
a plurality of first scintillator pixels having a first decay time mounted adjacent to the detection surfaces of the first and the second PS-PMTs;
at least one second scintillator pixel having a second decay time different from the first decay time, mounted adjacent to each of the first edge area of the first PS-PMT detection surface and the first edge area of the second PS-PMT detection surface; and
wherein each of the second scintillator pixels are optically coupled to an adjacent first scintillator pixel. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. An imaging method, comprising:
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receiving electromagnetic radiation at a first scintillator from a radiation source;
emitting first radiation from the first scintillator having a first decay time;
receiving the first radiation at a first radiation sensitive area of a first position sensitive radiation detector;
receiving electromagnetic radiation at a second scintillator from the radiation source;
emitting second radiation from the second scintillator having a second decay time different than the first decay time;
propagating the second radiation through the first scintillator to the first radiation sensitive area of the first position sensitive radiation detector;
distinguishing a difference between the first decay time and the second decay time; and
forming a position sensitive image from electromagnetic radiation received by the first and the second scintillators based on the difference between the first decay time and the second decay time. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification