Scinticor: A new digital gamma camera
A new mobile gamma camera, Scinticor, has been developed with major improvements in design and performance. The instrument has a new scintillation detector which is a block of NaI (T1), (8x8x1'') optically divided into (20x20) elements with 115 photomuliplier tubes (PMT's) coupled to the scintillation exit glass of the crystal. Integrated hybrid circuits on each PMT transform the signal to a digital pulse which is the input to the digital positioning logic and dual window pulse height analyzer. Detector reliability is enhanced by automatic electronic tuning of each PMT. A new high sensitivity collimator provides 70% greater sensitivity than the present multi crystal collimator with same FWHM. The detector's special purpose array processor performs in real time (up to 100 frames/sec): ECG digitization, creation of first pass cardiac functional images and corrections for field uniformity, deadtime, radioactive decay, and environmental background. Data transmission to the mobile data processing console is via a 10Mb/s fiber optic link. Initial results indicate a major advance in collimated detector sensitivity and count rate with saturation over 1,000,000 cps. Energy resolution is 25% FWHM at 122 keV, Dynamic Edge Resolution is 3mm, Static Resoltion is 10mm. Initial clinical studies indicate this instrument is suitable for a wide range of dynamic studies.
- Research Organization:
- Baird Corp., Bedford, MA
- OSTI ID:
- 6944331
- Report Number(s):
- CONF-840619-
- Journal Information:
- J. Nucl. Med.; (United States), Vol. 25:5; Conference: 31. annual meeting of the Society of Nuclear Medicine, Los Angeles, CA, USA, 5 Jun 1984
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
GAMMA CAMERAS
DESIGN
PERFORMANCE
SCINTISCANNING
ARRAY PROCESSORS
DOSEMETERS
DYNAMIC FUNCTION STUDIES
GAMMA DOSIMETRY
IMAGE PROCESSING
INTEGRATED CIRCUITS
NAI DETECTORS
RELIABILITY
RESOLUTION
SENSITIVITY
CAMERAS
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DOSIMETRY
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
MEDICINE
MICROELECTRONIC CIRCUITS
NUCLEAR MEDICINE
PROCESSING
RADIATION DETECTORS
RADIOISOTOPE SCANNING
RADIOLOGY
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
440102* - Radiation Instrumentation- Radiation Dosemeters
550601 - Medicine- Unsealed Radionuclides in Diagnostics