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Biomedical probe using a fiber-optic coupled scintillator. [Counting /sup 239/Pu in tracheobronchial lymph nodes]

Journal Article · · Med. Phys.; (United States)
OSTI ID:7098264
 [1];
  1. Battelle Pacific Northwest Lab., Richland, WA
+ Show Author Affiliations
A high-sensitivity biomedical radiation probe which employs a fiber-optic coupled NaI(Tl) scintillator as a detector is described. It was developed for in vivo counting of low-energy /sup 239/Pu photons from material located in the tracheobronchial lymph nodes. This probe is 20 times as sensitive as a solid-state probe (avalanche diode) previously developed for this application. Tests with /super 99m/Tc show a sensitivity more than 90 times greater than biomedical probes using DcTe of GaAs; however, the improved sensitivity is largely due to an increased sensitive volume. Probes were evaluated in animals and phantoms for detection of /sup 239/Pu and for location of lung tumors labeled with /sup 111/In.
OSTI ID:
7098264
Journal Information:
Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 3:2; ISSN MPHYA
Country of Publication:
United States
Language:
English

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Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
560161 -- Radionuclide Effects
Kinetics
& Toxicology-- Man
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALI METAL COMPOUNDS
ALPHA DECAY RADIOISOTOPES
BRONCHI
DESIGN
EVEN-ODD NUCLEI
HALIDES
HALOGEN COMPOUNDS
HEAVY NUCLEI
IN VIVO
INORGANIC PHOSPHORS
INTERNAL IRRADIATION
IODIDES
IODINE COMPOUNDS
IRRADIATION
ISOTOPES
LIGHT PIPES
LOW LEVEL COUNTERS
LYMPH NODES
LYMPHATIC SYSTEM
MEASURING INSTRUMENTS
MONITORING
NUCLEI
PERFORMANCE
PHOSPHORS
PLUTONIUM 239
PLUTONIUM ISOTOPES
RADIATION DETECTORS
RADIATION MONITORING
RADIOISOTOPES
RESPIRATORY SYSTEM
SCINTILLATION COUNTERS
SODIUM COMPOUNDS
SODIUM IODIDES
SOLID SCINTILLATION DETECTORS
TRACHEA
USES
YEARS LIVING RADIOISOTOPES