Radon exhalation rates and gamma doses from ceramic tiles.

abstract：:Transportable (e.g., "giraffe") air samplers can be used for both short-term "grab-sampling" situations involving a few minutes to several hours, as well as for long-term retrospective air sampling situations that typically last a week. It is the short-term coverage situation which begs the question: "how long a sampl...

journal_title：Health physics

authors： Justus AL

更新日期：2011-08-01 00:00:00

abstract：:Fetal radiation dose estimates were calculated for women who received oral administrations of 59Fe at Vanderbilt University in the 1940's. A similar dosimetry analysis was performed by Dyer and Brill in 1972; the availability of recently developed physical models of the pregnant female at different stages of gestation...

journal_title：Health physics

authors： Stabin MG,Stubbs JB,Russell JR

更新日期：1997-05-01 00:00:00

abstract：:Radiopharmaceutical therapy involves the use of radionuclides that are either conjugated to tumor-targeting agents (e.g., nanoscale constructs, antibodies, peptides, and small molecules) or that concentrate in tumors through natural physiological mechanisms that occur predominantly in neoplastic cells. In the latter c...

journal_title：Health physics

authors： Sgouros G

更新日期：2019-02-01 00:00:00

abstract：:The sorption of tin ions on human teeth from water and other drinks has been studied by the radioactive tracer technique using the isotope 113Sn (T(1/2) = 115.1 d) as a tracer. The tooth holds a minimum amount of tin from coffee and a maximum amount is held from water and from tea with sugar. The same technique was al...

journal_title：Health physics

authors： Helal AA,Alian GA,Madbouly HA

更新日期：2002-01-01 00:00:00

abstract：:The Pakistan Research Reactor-I (PARR-I) is a swimming pool type research reactor originally designed and built for a thermal power of 5 MW using High Enriched Uranium (HEU) fuel. In 1990-1991 the reactor was redesigned, partially decommissioned and recommissioned to operate with Low Enriched Uranium (LEU) fuel at a t...

journal_title：Health physics

authors： Ali A,Orfi SD,Manzur H,Aslam M

更新日期：2001-05-01 00:00:00

abstract：:The objectives of this research were (1) to analyze the transfers of 137Cs and 60Co in a retention pond, with emphasis on aquatic insects and (2) to determine if detectable concentrations of these radionuclides are exported by emerging aquatic insects. We analyzed the radionuclide concentrations in the following compo...

journal_title：Health physics

authors： Voshell JR Jr,Eldridge JS,Oakes TW

更新日期：1985-11-01 00:00:00

abstract：:During the winter months of 1992/93 and 1993/94, instantaneous indoor radon concentrations and gamma dose rates were measured in 890 schools in Slovenia attended in total by about 280,000 pupils. Under "closed conditions," the room to be surveyed was closed for more than 12 h prior to sampling, the air was sampled int...

journal_title：Health physics

authors： Vaupotic J,Sikovec M,Kobal I

更新日期：2000-05-01 00:00:00

abstract：:The use of silicon photodiodes for field radon measurements requires the utilization of measuring cells for protection against environmental electromagnetic fields. It is very important to study and optimize the impact of geometry conditions (dimensions of the measuring cell) on the photodiode detection efficiency tha...

journal_title：Health physics

authors： Voytchev M,Klein D,Voytchev K

更新日期：2001-06-01 00:00:00

abstract：:The variability in radiosensitivity across the human population is governed in part by genetic factors. The ability to predict therapeutic response, identify individuals at greatest risk for adverse clinical responses after therapeutic radiation doses, or identify individuals at high risk for carcinogenesis from envir...

journal_title：Health physics

authors： Story M,Ding LH,Brock WA,Ang KK,Alsbeih G,Minna J,Park S,Das A

更新日期：2012-11-01 00:00:00

abstract：:This study was done to provide data useful for predicting the deposition, retention and radiation dose patterns for humans who might be exposed to an aerosol containing 106RuO4 and respirable particles. Ruthenium-106 tetroxide was introduced into air containing inert particles. The inert particles were monodisperse. 0...

journal_title：Health physics

authors： Snipes MB,Kanapilly GM

更新日期：1983-04-01 00:00:00

abstract：:Our analysis of data from the beagle project completed at the University of Utah has provided some comparisons that appear to be useful in testing the model proposed by Raabe of effective thresholds for induction of skeletal malignancy by bone-seeking radionuclides in beagles. Raabe's model predicted that cumulative s...

journal_title：Health physics

authors： Lloyd RD,Taylor GN,Fisher DR,Schlenker RA,Miller SC

更新日期：2000-12-01 00:00:00

abstract：:Aerosol samples were collected and analyzed to characterize the spatial and temporal variations in the concentrations of plutonium and selected inorganic substances in the atmosphere around the Waste Isolation Pilot Plant (WIPP). High-volume aerosol sampling was conducted at three sites: (1) On Site, (2) Near Field, a...

journal_title：Health physics

authors： Arimoto R,Kirchner T,Webb J,Conley M,Stewart B,Schoep D,Walthall M

更新日期：2002-10-01 00:00:00

abstract：:The terrestrial gamma radiation level was determined throughout the Sultanate of Oman over a 3-y period. The dose rate at 1 m above the ground was measured at 512 locations using a compensated Geiger-Miller detector. The activity concentration of soil/rock samples, collected from 112 locations, was determined by gamma...

journal_title：Health physics

authors： Goddard CC

更新日期：2002-06-01 00:00:00

abstract：:A review is given of the classical theory of cluster formation to see whether it is a useful description of the behaviour of unattached radioactive particles. Special attention is given to the predictions concerning the size of the clusters, their growth, and their dependency on humidity and other trace gases. The the...

journal_title：Health physics

authors： Raes F

更新日期：1985-12-01 00:00:00

abstract：:Reliable radon laboratory operations motivated the construction of three radon gas calibration chambers. One chamber is used for background calibrations while the other two cover a radon gas concentration range of 110 to >5,550 Bq m(-3) (3-150 pCi L(-1)). The chambers entered commercial service, for tertiary radon cal...

journal_title：Health physics

authors： Distenfeld CH

更新日期：2007-08-01 00:00:00

abstract：:Experimental data are given on the content of genetically related pairs of radionuclides (226Ra and 222Rn; 224Ra and 220Rn) in soils and the above-ground phytomass of plants growing on plots with differing genesis of the higher concentrations of natural radionuclides in soils. Methods for determining gaseous radionucl...

journal_title：Health physics

authors： Taskayev AI,Popova ON,Alexakhin RM,Testov BV

更新日期：1986-05-01 00:00:00

abstract：:Studies of laboratory animal retinal exposure to green monochromatic laser radiation show an increasing stability of tissue with increasing pulse duration up to 10(-1) s. This mechanism of biological response of the eye to light damage is fundamental to living systems. It does not manifest itself in animals under deep...

journal_title：Health physics

authors： Zheltov G,Glazkov V,Podol'tzef A,Linnik L,Privalov A

更新日期：1989-05-01 00:00:00

abstract：:Dissolution characteristics of mixed-oxide nuclear fuels are important considerations for prediction of biological behavior of inhaled particles. Four representative industrial mixed-oxide powders were obtained from fuel fabrication enclosures. Studies of the dissolution of Pu, Am and U from aerosol particles of these...

journal_title：Health physics

authors： Eidson AF,Mewhinney JA

更新日期：1983-12-01 00:00:00

abstract：:The National Ignition Facility (NIF) has been designed to accommodate some challenging radiological conditions. The high prompt neutron source (up to 1.6 × 10(19) neutrons per shot) results in the need for significant fixed shielding. Concrete shielding approximately 2 m thick is used for the primary (target bay) shie...

journal_title：Health physics

authors： Kohut TR,Brereton SJ,Khater H

更新日期：2013-06-01 00:00:00

abstract：:The processes of uranium extraction, purification, and manufacture involve the risk of chemical intoxication. Acute uranium poisoning elicits renal failure which in turn may lead to death. Great efforts have been put into the search for a protective agent for acute uranium poisoning. Several chelating agents such as E...

journal_title：Health physics

authors： Ubios AM,Braun EM,Cabrini RL

更新日期：1994-05-01 00:00:00

abstract：:The thermoluminescent (TL) response to ultraviolet irradiation of CaF2:Tm phosphor is affected by pre-irradiation high-temperature treatment. The experimental results indicate that the maximum intrinsic TL output is about 2000 times higher for 1000 degrees C treatment than when not treated. TL stability for this phosp...

journal_title：Health physics

authors： Li SH,Hsu PC,Weng PS

更新日期：1991-12-01 00:00:00

abstract：:For efficiently measuring ultraviolet transmission through clothing materials for a large number of samples, an automated measuring system with a broad-band method has been built and calibrated against a spectroradiometer based instrument. The apparatus can be used to test 60 samples in 25 min. A selection of clothing...

journal_title：Health physics

authors： Zhang Z,Thomas BW,Wong CF,Fleming RA

更新日期：1997-02-01 00:00:00

abstract：:The kinetics with which tritiated thymidine is eliminated from birds and the concentration of radioactivity remaining in the carcass after 350-430 h were measured. Birds injected with tritiated thymidine eliminated 98% of the radioactivity injected within 28 h. Ninety-eight percent was identified in the excreta, and l...

journal_title：Health physics

authors： Party E,Barnea A,Linins I,Gershey EL

更新日期：1997-04-01 00:00:00

abstract：:The process of nuclear fission, which was discovered in 1938, opened the door to the production of nuclear weapons, which were used in 1945 by the United States against Japan in World War II, and to the detonation of >500 nuclear weapons tests in the atmosphere by the United States, the former Soviet Union, the United...

journal_title：Health physics

authors： Bouville A

更新日期：2020-04-01 00:00:00

abstract：:One goal of this research was to reproduce the photon specific absorbed fraction calculations of Cristy and Eckerman using their gastrointestinal (GI) tract model. A second goal was to calculate photon specific absorbed fraction values for their GI tract model using electron tracking techniques. A final goal was to ca...

journal_title：Health physics

authors： Poston JW Jr,Kodimer KA,Bolch WE,Poston JW Sr

更新日期：1996-09-01 00:00:00

abstract：:Radiofrequency-induced hyperthermia has recently gained acceptance in cancer therapy. One of a few commercially available systems is the Magnetrode, a device operating at 13.56 MHz with an output power up to 1000 W. Heating of the prescribed part of the patient's body is accomplished by one of the coil electrodes. To ...

journal_title：Health physics

authors： Stuchly MA,Repacholi MH,Lecuyer DW

更新日期：1983-07-01 00:00:00

abstract：:Guidelines for occupational exposure to radiation are based on annual absorbed or effective dose. Guidelines for Rn exposure are currently based on air concentrations of Rn or decay products. Models of bronchial dose from decay product exposure are based on calculations that have five major parameters with parameter v...

journal_title：Health physics

authors： Harley NH

更新日期：2018-04-01 00:00:00

abstract：:The aim of this paper is to compare and contrast the needs for biodosimetry for initial triage for military forces and civilian populations when there are radiation exposures that involve potentially a large number of persons. Several differences in the likely scenarios for exposure of military forces include a greate...

journal_title：Health physics

authors： Swartz HM,Flood AB,Williams BB,Meineke V,Dörr H

更新日期：2014-06-01 00:00:00

abstract：:The aim of this study is to evaluate the application and accuracy of polymer gels for determining electron dose distributions in the presence of small heterogeneities made of bone and air. Different cylindrical phantoms containing MAGIC (Methacrylic and Ascorbic acid in Gelatin Initiated by Copper) normoxic polymer ge...

journal_title：Health physics

authors： Asl RG,Nedaie HA,Banaee N

更新日期：2017-12-01 00:00:00

abstract：:The Nuclear Regulatory Commission's Regulatory Guide 8.39, "Release of Patients Administered Radioactive Materials," permits licensees to authorize the release of patients treated with 131I [(T 1/2)p = 8.04 d] if the total dose equivalent to another individual from the released individual is not likely to exceed 5 mil...

journal_title：Health physics

authors： DeSantis DM,Chabot GE

更新日期：2001-07-01 00:00:00