RADIOLOGICAL PHYSICS DIVISION SEMIANNUAL REPORT, JULY THROUGH DECEMBER 1960

Technical Report · Wed Feb 01 00:00:00 EST 1961

DOI:https://doi.org/10.2172/4004116· OSTI ID:4004116

Data are presented from studies on the total Ra>s2/sup >> /ntent, radon retention, and activity of hotspots in human bones approximately 30 yr post- adiministration of Ra. Preliminary results are reported from a study of the incidence of bone tumors following injection of Pu>s2/sup >>,/a>s2/sup >>/ / sup ,/r>s9/sup >,/r Ca>s4/sup > / mice. Calculations were made of the radiation dose from hotspots formed in bone by these radioisotopes. The gamma spectra of 20 subjects who contained known quantities of K>s4/sup > /re obtained with several different sized NaI(Tl) crystals located at various points around the body. These spectra were analyzed to determine the variations in counting rates that resulted with each patient-crystal arrangement. The total-body gamma spectra of 12 unexposed employees were measured with the human spectrometer over a span of 30 mo. Data are tabulated on Co>s1/sup >>//s4/sup > /tios. The respo nse of a scintillation counter to gamma radiation asAa function of incidence angle was measured. Studies were made on the refractive index of selected optical media. Improvements were made in the design and in the scintillator solvent for a twin scintillation fast neutron detector. Measurements were made of the skeletal and soft tissue content of Ra in normal humans whose primary source of Ra was food. Calculations of the half lives and distributions of stuble Pb and Pb>s2/sup >> / the human body are discussed. Meteorological studies reported include a comparison of observed plume rise of stack effluent with values obtuined from well-known formulas, towing tank studies of horizontal turbulent air flow, and soil temperature studies. (C.H.)

• Research Organization: Argonne National Lab., Ill.
• DOE Contract Number: W-31-109-ENG-38
• NSA Number: NSA-15-019658
• OSTI ID: 4004116
• Report Number(s): ANL-6297
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: United States
• Language: English

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HEALTH AND SAFETY
ADSORPTION
AEROSOLS
AIR
ANGULAR DISTRIBUTION
BODY
BONES
CALCIUM 45
CESIUM 137
CRYSTALS
DISTRIBUTION
FAST NEUTRONS
FOOD
GAMMA RADIATION
GAS FLOW
HALF-LIFE
LATTICES
LEAD
LEAD 210
MAN
MATHEMATICS
MEASURED VALUES
METEOROLOGY
MICE
NEUTRON DETECTION
OPTICAL SYSTEMS
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PLUTONIUM 239
POTASSIUM 42
QUANTITY RATIO
RADIATION DOSES
RADIOACTIVITY
RADIOBIOLOGY
RADIOCHEMISTRY
RADIUM
RADIUM 226
RADON
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SCINTILLATION COUNTERS
SODIUM IODIDES
SOILS
SOLVENTS
SPECTRA
SPECTROMETERS
SPECTROSCOPY
STRONTIUM 90
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TISSUES
TUMORS
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