A new X-ray scintillator for digital radiography

Author

Nagarkar, V.V. ; Tipnis, S.V. ; Miller, S.R. ; Lempicki, A. ; Brecher, C. ; Szupryczynski, P. ; Lingertat, H.

Author_Institution

Radiat. Monitoring Devices Inc., Watertown, MA, USA

Volume

1

fYear

2001

Firstpage

134

Abstract

We report a new scintillator based on a transparent ceramic of Lu₂O₃:Eu. The material has an extremely high density of 9.4 g/cm³ and a light output comparable to CsI:Tl. Its narrow band emission at 610 nm perfectly matches the spectral response of CCDs. To enhance the spatial and contrast resolution, we have developed a special process to pixelate the scintillator and prevent the spread of light within the scintillator volume. The performance of this pixelated device was thoroughly evaluated and found to equal or surpass all other currently known scintillators. The new scintillator is expected to play a major role in digital radiographic systems, when readout technologies capable of taking advantage of the transparency are developed further.

Keywords

X-ray detection; charge-coupled devices; diagnostic radiography; europium; lutetium compounds; position sensitive particle detectors; solid scintillation detectors; 610 nm; CCD; Lu₂O₃:Eu; X-ray scintillator; contrast resolution; digital radiography; high density; light output; narrow band emission; pixelated device; readout technologies; scintillator volume; spatial resolution; spectral response; transparent ceramic; Ceramics; Light scattering; Optical scattering; Particle scattering; Phosphors; Powders; Radiation monitoring; Radiography; Telephony; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2001 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-7324-3

Type

conf

DOI

10.1109/NSSMIC.2001.1008426

Filename

1008426