Physical characteristics of TTV03, a new high spiral resolution time-of-flight position tomograph

Conference · Sun Apr 01 00:00:00 EST 1990 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)

OSTI ID:6587707

Mazoyer, B; Trebosser, R; Schoukroun, C; Verrey, B; Syrota, A ^[1]; Vacher, J; Lemasson, P; Monnet, O; Bouvier, A; Lecomte, J L ^[2]

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1. Service Hospitalier Frederic Joliot, CEA, 91406 Orsay (FR)
2. Div. LETI, CEA, 38000 Grenoble (FR)

The authors present TTV03, a new high spatial resolution TOF-PET system. The machine consists of four 89 cm diameter rings made of 7 mm wide, 18 mm high and 45 mm deep BaF{sub 2} crystals (324 per ring) individually coupled to 11 mm diameter phototubes. The transaxial resolution (FWHM) in the reconstructed image is 5.7 mm at center, 5.7 mm (tangential) and 6.5 mm (radial) at 10 cm. The axial resolution is 8.8 mm (direct plane) and 6.7 mm (crossplane) at center, 10.3 mm (direct) and 11.2 mm (cross) at 10 cm from center. With a 150 keV threshold, the time-of-flight resolution is 750 psec (FWHM), and, with a 4.18 nsec coincidence window, the sensitivity (true evts/.sec per {mu}Ci/cc) is 9800 (direct plane) and 14300 (crossplane).

• OSTI ID: 6587707
• Report Number(s): CONF-900143-; CODEN: IETNA; TRN: 90-031692
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA), Vol. 37:2; Conference: Institute for Electronic and Electrical Engineers (IEEE) nuclear science symposium, San Francisco, CA (USA), 15-19 Jan 1990; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
62 RADIOLOGY AND NUCLEAR MEDICINE
BARIUM FLUORIDES
CRYSTAL LATTICES
BRAIN
POSITRON COMPUTED TOMOGRAPHY
IMAGE SCANNERS
TIME-OF-FLIGHT SPECTROMETERS
SPATIAL RESOLUTION
DIAGNOSTIC USES
HEART
IMAGE PROCESSING
PHOTOMULTIPLIERS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BODY
CARDIOVASCULAR SYSTEM
CENTRAL NERVOUS SYSTEM
COMPUTERIZED TOMOGRAPHY
CRYSTAL STRUCTURE
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MEASURING INSTRUMENTS
NERVOUS SYSTEM
ORGANS
PHOTOTUBES
PROCESSING
RESOLUTION
SPECTROMETERS
TOMOGRAPHY
USES
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation
550601 - Medicine- Unsealed Radionuclides in Diagnostics