The development of a Compton lung densitometer

Conference · Tue Nov 01 04:00:00 EST 1988

OSTI ID:6352775

Loo, B W; Goulding, F S; Madden, N W; Simon, D S

A field instrument is being developed for the non-invasive determination of absolute lung density using unique Compton backscattering techniques. A system consisting of a monoenergetic gamma-ray beam and a shielded high resolution high-purity-germanium (HPGe) detector in a close-coupled geometry is designed to minimize errors due to multiple scattering and uncontrollable attenuation in the chestwall. Results of studies on system performance with phantoms, the optimization of detectors, and the fabrication of a practical gamma-ray source are presented. 3 refs., 6 figs., 2 tabs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6352775
• Report Number(s): LBL-25170; CONF-881103-36; ON: DE89006654
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMALS
BODY
COMPTON DIODE DETECTORS
DENSITY
DETECTION
DIAGNOSTIC USES
DISEASES
DOMESTIC ANIMALS
EDEMA
ELECTROMAGNETIC RADIATION
ENVIRONMENTAL EXPOSURE
EQUIPMENT
GAMMA RADIATION
GOATS
IONIZING RADIATIONS
LUNGS
MAMMALS
MEASURING INSTRUMENTS
MOCKUP
MONITORING
OPTIMIZATION
ORGANS
PATHOLOGICAL CHANGES
PHANTOMS
PHYSICAL PROPERTIES
PORTABLE EQUIPMENT
RADIATION DETECTORS
RADIATIONS
RESPIRATORY SYSTEM
RESPIRATORY SYSTEM DISEASES
RUMINANTS
SHEEP
STRUCTURAL MODELS
SYMPTOMS
USES
VERTEBRATES