Tissue-equivalent torso phantom for calibration of transuranic-nuclide counting facilities
Several tissue-equivalent human-torso phantoms have been constructed for the calibration of counting systems used for in-vivo measurement of transuranic radionuclides. The phantoms contain a simulated human rib cage (in some cases, real bone) and removable model organs, and they include tissue-equivalent chest plates that can be placed over the torso to simulate people with a wide range of statures. The organs included are the lungs, liver, and tracheobronchial lymph nodes. Polyurethane with varying concentrations of added calcium was used to simulate the linear photon-attenuation properties of various human tissues, including lean muscle, adipose-muscle mixtures, cartilage, and bone. Foamed polyurethane was used to simulate lung tissue. Organs have been loaded with highly pure /sup 238/Pu, /sup 239/Pu, /sup 241/Am, and other radionuclides of interest. The validity of the phantom as a calibration standard has been checked in separate intercomparison studies using human subjects whose lungs contained a plutonium simulant. The resulting phantom calibration factors generally compared to within +-20% of the average calibration factors obtained for the human subjects.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5796207
- Report Number(s):
- UCRL-93776; CONF-860146-8; ON: DE86009693
- Resource Relation:
- Conference: Radiobioassay and internal dosimetry workshop, Albuquerque, NM, USA, 20 Jan 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHEST
PHANTOMS
CALIBRATION
IN VIVO
MAN
RADIATION DETECTORS
TISSUE-EQUIVALENT MATERIALS
TRANSURANIUM ELEMENTS
ANIMALS
BODY
BODY AREAS
ELEMENTS
MAMMALS
MATERIALS
MEASURING INSTRUMENTS
MOCKUP
PRIMATES
STRUCTURAL MODELS
VERTEBRATES
655003* - Medical Physics- Dosimetry