Download or read book Radiological Physics Division Semiannual Report written by J. E. Rose and published by . This book was released on 1961 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book RADIOLOGICAL PHYSICS DIVISION SEMIANNUAL REPORT JULY THROUGH DECEMBER 1961 written by J. E. Rose and published by . This book was released on 1962 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division Semiannual Report July Through December 1960 written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.).

Download or read book Radiological Physics Division Semiannual Report for July Through December 1958 written by and published by . This book was released on 1959 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABS>Progress is reported in the following studies: the decay time of irradiated scintillation solutions; the performance of twin scintillation detectors for measuring neutrons in the presence of gamma radiation; the measurement of cosmic ray neutron background with a twin scintillation fast neutron spectrometer; the diffusion and absorption of gases in plastic-walled ionization chambers; calculations of the drift velocity and the energy distribution of electrons of helium, neon, argon, and nitrogen under the action of a uniform electric field; the development of equipment for tracer studies of atmospheric diffusion; the deposition and retention of isotopes of actinium, radon, radium, and thorium in bone; the effects of age on calcium metabolism in bone, ; the development of a mathematical theory of the retention of radioactive elements by bone; the development of a reproducible method for directly determining individual alpha activities in mixtures; the design of a flow-gas Geiger counter; a survey of the natural radioactivity of a number of municipal water supplies; measurements of activity in individuals by means of the human spectrometer; measurements of the cesium-l37 content of human subjects; measurements of the atmospheric content of cesium-137 as a function of time; a comparison of background radioactivity at the Laboratory and a site approximately 250 feet below grade level; development of a spectrometric method for measurements of radioactivity in soil; the effects of meteorological variables on the distribution of radon in the atmosphere; and studies of atmospheric diffusion. A list of publications during the period is included. (For preceding period see ANL-5919.) (C.H.).

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1958 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1957 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1960 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division Semiannual Report written by and published by . This book was released on 1963 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1962 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division Summary Report written by and published by . This book was released on 1962-07 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radium in Humans written by R. E. Rowland and published by . This book was released on 1995 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1963 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1957 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABS>Progress is reported in the following studies: the autoradiographic mapping of the deposition of Ca/sup 45/ in cortical bone in dogs; measurement of fission-product activity present in soil; factors affecting the performance of ionization chambers; calibration tests on the dibutyl phosphate method of isolating Th/sup 228/ from solutions of ashed bone; microradiographic demonstration of changes in mineral density in dog bones; radiometric determination of radon in bone and in the atmosphere; changes produced in xylene by exposure to massive doses of Co/sup 60/ gamma radiation; applications of the human spectrometer in in vivo measurements of Cs/sup 137/ build-up in humans; determinations of Cs/sup 137/ atmospheric content as a function of time; development of a tracer method using K/sup 42/ for measurement of exchangeable potassium in humans; determinations of the radium body burdens in fornner dial painters; and the atmospheric diffusion of stack particles. A meteorological model towing tank is described which was constructed as an alternative to a wind tunnel for model studies of atmospheric turbulent diffusion. Preliminary studies employing the apparatus are described. (For preceding period see ANL-5679.) (C.H.).

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1959 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: A list of publications and papers submitted for publication during the period is included. Progress is reported in the following studies: a decay-time study of an irradiated scintillating solution; the development of methods and equipment for use in measurements of the cosmic-ray neutron background; the effects of the addition of various gases singly and in pairs to the inert gas argon on results obtained with the halogen-sensitive positive ion tube used to measure the concentration of tracers in atmospheric air; the calibration of a quantitative alpha-track autoradiographic technique; studies on radiation carcinogenesis of radium and thorium oxides in the human skeleton; development of a method for counting individual alpha activities in mixtures in which the component activities do not show considerable variation; a survey of natural radium-226 and radium-228 content in municipal water supplies; radioac- tivity measurements and dose calculations of soil collected at Argonne; the effect of various meteorological parameters on thermal conditions in the soil; design of an automatic data processing system which records data from nearly 200,000 meteorological measurements made annually; and studies on meteorological parameters affecting atmospheric diffusion of particles. (For preceding period see AN1.-5967.) (C.H.).

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1961 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book TID written by and published by . This book was released on 1960 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiological Physics Division written by J. E. Rose and published by . This book was released on 1958 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: