Optimized light sharing module for PET block detectors

Author

Steinbach, Cecília O. ; Erdei, Gábor ; Péczeli, Imre ; Ujhelyi, Ferenc ; Bükki, Tamás ; Lorincz, Emoke

Author_Institution

Atomic Phys. Dept., Budapest Univ. of Technol. & Econ., Budapest, Hungary

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

2817

Lastpage

2820

Abstract

A new concept is presented realizing controlled deflection of emerging light cone from excited crystal pins in a PET block detector. The new light sharing module consists of special double prism units optically coupled to a continuous light guide. Slope angle in the prism unit can be optimized for each pin in the array. We present results of simulations for a block detector consisting of an array with 21 Ã— 21 pins and four 1.5" PMTs. First test results with a small 5 Ã— 5 light deflector are also presented.

Keywords

optical deflectors; optical design techniques; optical prisms; positron emission tomography; radiation detection; scintillation counters; PET block detectors; continuous light guide; controlled deflection; double prism units; emerging light cone; excited crystal pins; optimized light sharing module; Lighting control; Optical arrays; Optical coupling; Pins; Positron emission tomography; Sensor arrays; Solid modeling; Solid scintillation detectors; Spatial resolution; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2009.5401650

Filename

5401650