6533b824fe1ef96bd127feb0
RESEARCH PRODUCT
Position sensitive scintillator based detector improvements by means of an integrated front-end
Ch.w. LercheNéstor FerrandoFernando MateoR.j. ColomJose M. BenllochJosé MonzóA. SebastiaVicente HerreroJorge D. MartinezR. Gadeasubject
PhysicsNuclear and High Energy PhysicsPhotomultiplierbusiness.industryDetectorEqualization (audio)ScintillatorFront and back endsOpticsApplication-specific integrated circuitCalibrationElectronicsbusinessInstrumentationdescription
PESIC is an integrated front-end for multianode photomultiplier based nuclear imaging devices. Its architecture has been designed to improve position sensitive detectors behavior by equalizing its response over its whole area. Its preamplying stage introduces two main benefits: digitally programmable gain adjustment for every photomultiplier output, and isolation from other front-end electronics by means of current buffers. This last feature allows to use different types of photomultipliers and optimizes front-end deadtime, reducing impact position dependent output delay. PESIC also includes an indirect measurement of the depth of interaction of the gamma ray inside the scintillator crystal, based on the width of its light distribution. Test measurements have been carried out in an experimental dual detector PET setup in order to quantify improvements obtained from integrated front-end calibration capabilities.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-01 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |