A flying spot x-ray system for Compton backscatter imaging
- Pennsylvania State Univ., Hershey, PA (United States)
- Hologic, Waltham, MA (United States)
A Compton x-ray backscatter imaging (CBI) system using a single detector and a mechanically rastered flying spot'' x-ray beam has been designed, built, and tested. While retaining the essential noninvasive imaging capability of previous multiple detector CBI devices, this single detector system incorporates several advances over earlier CBI devices: more efficient detection of scattered x-rays, reduced x-ray exposure, and a simplified scan protocol more suitable for use with humans. This new CBI system also has specific design features to permit automating data acquisition from multiple two-dimensional image planes for integration into a 3-D dynamic surface image. A simulated multislice scan study of a human thorax phantom provided x-ray dosimetry data verifying a very low x-ray dose delivered by this imaging device. Validation experiments with mechanical models show that surface displacement of typical heart beam frequencies can be measured to the nearest 0.1 mm (SD).
- OSTI ID:
- 6977287
- Journal Information:
- IEEE Transactions on Medical Imaging (Institute of Electrical and Electronics Engineers); (United States), Vol. 13:3; ISSN 0278-0062
- Country of Publication:
- United States
- Language:
- English
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CHEST
IMAGE PROCESSING
X-RAY EQUIPMENT
DESIGN
BIOMEDICAL RADIOGRAPHY
COMPTON EFFECT
LOW DOSE IRRADIATION
BASIC INTERACTIONS
BODY
BODY AREAS
DIAGNOSTIC TECHNIQUES
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
EQUIPMENT
INTERACTIONS
IRRADIATION
MEDICINE
NUCLEAR MEDICINE
PROCESSING
RADIOLOGY
SCATTERING
550602* - Medicine- External Radiation in Diagnostics- (1980-)