Innovative LuYAP:Ce array for PET imaging

• We present an imaging characterization of a 10 x 10 LuYAP array (2 x 2 x 10 mm3 pixels) with an innovative dielectric coating insulation (0.015 mm thick), in view of its possible use in a gamma camera for imaging positron emission tomography (PET) or in similar applications, e.g. as γ-prompt detector in hadron therapy. The particular assembly of this array was realized in order to obtain a packing fraction of 98%, improving detection efficiency and light collection. For imaging purpose, the array has been coupled with a selected Hamamatsu H10966-100 Multi Anode Photomultiplier read out by a customized 64 independent channels electronics. This tube presents a superbialkali photocathode with 38% of quantum efficiency, permitting to enhance energy resolution and consequently image quality. A pixel identification of about 0.5 mm at 662 keV was obtained, highlighting the potentiality of this detector in PET applications.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Medicinteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Medical Engineering (hsv//eng)

Nyckelord

Gamma camera

SPECT

PET PET/CT

coronary CT angiography (CTA)

Scintillators

scintillation and light emission processes (solid

gas and liquid scintillators)

Cameras

Ionization

Pixels

Positron emission tomography

Scintillation counters

Single photon emission computed tomography

Coronary ct angiographies

Detection efficiency

Dielectric coatings

Emission process

Energy resolutions

Independent channels

Multi-anode photomultipliers

Positron emission tomography (PET)

Computerized tomography

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