2 DETECTOR MWPC POSITRON CAMERA WITH HONEYCOMB LEAD CONVERTERS FOR MEDICAL IMAGING - PERFORMANCE AND DEVELOPMENTS

被引：10

作者：

PEREZMENDEZ, V ^{[1
]}

LIM, CB ^{[1
]}

ORTENDAHL, D ^{[1
]}

SEMPER, R ^{[1
]}

CHENG, A ^{[1
]}

CHU, D ^{[1
]}

HATTNER, R ^{[1
]}

KAUFMAN, L ^{[1
]}

PRICE, DC ^{[1
]}

机构：

[1] UNIV CALIF SAN FRANCISCO,DEPT RADIOL,SAN FRANCISCO,CA 94143

来源：

NUCLEAR INSTRUMENTS & METHODS | 1978年 / 156卷 / 1-2期

关键词：

D O I：

10.1016/0029-554X(78)90688-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A MWPC camera for nuclear medicine imaging with positron emitting isotopes has been built. The two planar detectors are converter coupled MWPC with sensitive area 48×48 cm2 placed 50 cm apart with clear space in between for the patient. The effective sensitivity of 5.8% for each detector with a spatial resolution of 7 mm fwhm on the image plane is achieved by use of honeycomb lead-on-plastic converters. Present performance in imaging test objects and in clinical applications is described, using various computer 3D reconstruction algorithms. Developments in progress include the use of small diameter lead oxide glass tube converters; techniques to eliminate multiple scatter events and improve the point response function; and electronics to provide accidental event subtraction. © 1978.

引用

页码：33 / 40

页数：8

共 22 条

[1]

ATKINS FB, 1976, 4TH INT C MED PHYS O

[2] ELECTRONIC DISCRIMINATION OF EFFECTIVE THICKNESS OF PROPORTIONAL-COUNTERS [J].

BORKOWSKI, CJ ;

KOPP, MK .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1977, 24 (01) :287-292

[3]

BRADT H, 1946, HELV PHYS ACTA, V19, P77

[4] HIGH ACCURACY MEASUREMENTS IN PROPORTIONAL CHAMBERS AND CLARIFICATION OF AVALANCHE MECHANISMS AROUND WIRES [J].

CHARPAK, G ;

PETERSEN, G ;

POLICARPO, A ;

SAULI, F .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1978, 25 (01) :122-125

[5]

CHU D, 1976, IEEE T NUCL SCI, V23, P634

[6]

CHU D, 1977, IAEASM21063, V1

[7] AVALANCHE LOCALIZATION AND ITS EFFECTS IN PROPORTIONAL-COUNTERS [J].

FISCHER, J ;

OKUNO, H ;

WALENTA, AH .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1978, 25 (01) :794-799

[8]

Grove R., 1970, Nuclear Instruments and Methods, V89, P257, DOI 10.1016/0029-554X(70)90833-5

[9]

GROVE R, 1973, IEEE T NUCL SCI, V20, P426

[10] HIGH-RESOLUTION PROPORTIONAL CHAMBER POSITRON CAMERA AND ITS APPLICATIONS [J].

JEAVONS, AP ;

TOWNSEND, DW ;

FORD, NL ;

KULL, K ;

MANUEL, A ;

FISCHER, O ;

PETER, M .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1978, 25 (01) :164-173

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