Modular 64x64 CdZnTe arrays with multiplexer readout for high-resolution nuclear medicine imaging

Book · Wed Dec 30 23:00:00 EST 1998

OSTI ID:323851

Woolfenden, J M; Barber, H B; Barrett, H H; Barrett, H H; Dereniak, E L; Eskin, J D; Marks, D G; Matherson, K J; Young, E T ^[1]; Augustine, F L ^[2]

---

1. Univ. of Arizona, Tucson, AZ (United States)
2. Augustine Engineering, Encinitas, CA (United States)

The authors are developing modular arrays of CdZnTe radiation detectors for high-resolution nuclear medicine imaging. Each detector is delineated into a 64x64 array of pixels; the pixel pitch is 380 {micro}m. Each pixel is connected to a corresponding pad on a multiplexer readout circuit. The imaging system is controlled by a personal computer. They obtained images of standard nuclear medicine phantoms in which the spatial resolution of approximately 1.5 mm was limited by the collimator that was used. Significant improvements in spatial resolution should be possible with different collimator designs. These results are promising for high-resolution nuclear medicine imaging.

• Sponsoring Organization: National Cancer Inst., Bethesda, MD (United States)
• OSTI ID: 323851
• Report Number(s): CONF-971201--
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
55 BIOLOGY AND MEDICINE
BASIC STUDIES
CADMIUM TELLURIDES
EXPERIMENTAL DATA
GAMMA CAMERAS
GAMMA DETECTION
MULTIPLEXERS
READOUT SYSTEMS
SEMICONDUCTOR DETECTORS
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
ZINC TELLURIDES