THE INTRINSIC RESOLUTION OF X-RAY-IMAGING PLATES

被引：9

作者：

TEMPLER, RH

WARRENDER, NA

SEDDON, JM

DAVIS, JM

HARRISON, A

机构：

[1] UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND

[2] UNIV OXFORD,INORGAN CHEM LAB,OXFORD OX1 3QR,ENGLAND

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 310卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(91)91033-R

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The spatial resolution of BaFBr:Eu2+ X-ray imaging plates is limited by the scattering of light within the granular structure of the screen. In this work we have examined the scattering of the luminescence emission within the phosphor, which gives rise to the intrinsic limit to a screen's resolution. We find by comparison with measurements made on CaSO4:Dy3+ screens that the plate-like crystal habit of BaFBr gives rise to a poorer intrinsic resolution. Of special note are the diffuse wings to the point spread function of BaFBr screens, which give significant signal levels out to +/- 750-mu-m at a surface loading of 18.8 mg cm-2.

引用

页码：232 / 235

页数：4

共 7 条

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Aitken M. J., 1968, 2ND P INT C LUM DOS, P248

[2]

EMEMIYA Y, 1988, NUCL INSTRUM METH A, V266, P645

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