Radiocesium contamination at a steel plant in Ireland.

abstract：:A group of workers internally contaminated with Am have been followed for about 12 years. The source of contamination was AmO2 powder used for production of AmBe neutron sources and other applications. The production of some radionuclide sources included chemical treatment of the original material, which transformed t...

journal_title：Health physics

authors： Malátová I,Vrba T,Becková V,Pospísilová H

更新日期：2010-10-01 00:00:00

abstract：:This study was designed to provide tissue distribution data of 244Cm that was inhaled by beagle dogs. Two chemical forms that were presumed to bracket the solubility of pure Cm compounds in vivo were used: 244Cm2O3 (oxide) and 244Cm(NO3)3 (nitrate). Adult dogs of both sexes received a single brief pernasal exposure to...

journal_title：Health physics

authors： Guilmette RA,Kanapilly GM

更新日期：1988-12-01 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：:Institutional radiation safety programs routinely use wipe test sampling and liquid scintillation counting analysis to indicate the presence of removable radioactive contamination. Significant volumes of liquid waste can be generated by such surveillance activities, and the subsequent disposal of these materials can s...

journal_title：Health physics

authors： Emery RJ

更新日期：1997-03-01 00:00:00

abstract：:Medical workers constitute the largest group of individuals occupationally exposed to radiation, and their collective dose equivalent is exceeded only by persons employed in the nuclear fuel cycle. Although medical workers have increased in number by about 50% over the past two decades, their collective dose has stead...

journal_title：Health physics

authors： Hendee WR,Edwards FM

更新日期：1990-03-01 00:00:00

abstract：:Different numerical strategies in searching for orphan radioactive sources in the environment by means of a mobile detector system have been evaluated. A carborne 3- by 3-inch NaI(Tl) spectrometric system was used with an unshielded 2 GBq 137Cs source as a test source. In this paper, a previous method (MB method), bas...

journal_title：Health physics

authors： Hjerpe T,Samuelsson C

更新日期：2003-02-01 00:00:00

abstract：:In the last 50 years several radiation accidents occurred in which industrial radiographers and others suffered severe radiation injuries from inadvertent contact with radiation sources. Such accidents involving acute localized injuries are characterized by a severe initial reaction progressing through erythema to ski...

journal_title：Health physics

authors： Lefaix JL,Daburon F

更新日期：1998-10-01 00:00:00

abstract：:Gamma-ray spectra were measured from Scottish heather honey samples gathered from hive locations with associated airborne gamma-ray survey data. The honeys all contained radiocesium, with activity concentrations ranging from 43-680 Bq kg(-1) 137Cs, and 134Cs/137Cs ratios consistent with Chernobyl deposition. Activity ...

journal_title：Health physics

authors： Fisk S,Sanderson DC

更新日期：1999-10-01 00:00:00

abstract：:A model is presented to analyze the retention of Pu in the major deposition organs of the beagle dog and predict the dynamic behavior of skeletal labels. The kinetic part describing the gross organ distribution was represented by a compartment model. A fit to empirical retention equations of liver and skeleton yielded...

journal_title：Health physics

authors： Polig E

更新日期：1989-09-01 00:00:00

abstract：:This work was directed towards an assessment of alpha/beta separation, alpha detection efficiency, energy resolution, quench sensitivity, and background count rate for four commercially available liquid scintillation cocktails using a Wallac 1415 liquid scintillation counter. The four cocktails were Wallac Oy OptiPhas...

journal_title：Health physics

authors： DeVol TA,Brown DD,Leyba JD,Fjeld RA

更新日期：1996-01-01 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 deployment of a radiological dispersal device (RDD) is likely to result in relatively low radiation exposure of the targeted population, insufficient to cause a severe radiation detriment. Nevertheless, due to atmospheric dispersion of the radioactive material, an urban area equaling several city blocks could be a...

journal_title：Health physics

authors： Steinhausler F

更新日期：2005-11-01 00:00:00

abstract：:In 1980, the NCRP formed Scientific Committee 66 with an assignment to address the subject of "biological effects of ultrasound and exposure criteria." It was recognized that the primary source of exposure to ultrasound was through medical applications and, especially, through procedures employing diagnostic ultrasoun...

journal_title：Health physics

authors： Nyborg WL

更新日期：2002-05-01 00:00:00

abstract：:Uptake of 226Ra, 232Th, 230Th, and 228Th from water, sediment, and diet sources to bone and muscle of white suckers (Catostomus commersoni) was studied in sixteen lakes in the uranium-mining district of Ontario, Canada. Fish tissues did not increase linearly with environmental concentrations. The best relationship app...

journal_title：Health physics

authors： Pyle GG,Clulow FV

更新日期：1997-09-01 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：:A mathematical model describing the dynamics of lymphopoiesis in mammals continuously exposed to ionizing radiation has been developed. It is based on the theory of chalone regulation of hematopoiesis. The model comprises a system of nine differential equations. Results from the model were compared with our experiment...

journal_title：Health physics

authors： Zukhbaya TM,Smirnova OA

更新日期：1991-07-01 00:00:00

abstract：:In 1992, the University of Texas Health Science Center at Houston (UTHSCH) Radiation Safety Program began assembling data on a monthly basis that described various program drivers and associated activities. At the end of calendar year 2002, a decade of data had been collected, so the information was summarized into a ...

journal_title：Health physics

authors： Emery RJ,Gutierrez JM

更新日期：2014-08-01 00:00:00

abstract：:Many first responders are outfitted with electronic personal dosimeters to recognize and be alerted to radiological hazards during their response operations. These dosimeters provide invaluable measurement data for force protection, allowing the first responder to assess a response situation and take protective measur...

journal_title：Health physics

authors： Fabian R,Bell J,Brandl A

更新日期：2020-08-01 00:00:00

abstract：:We are considering some aspects related to the decontamination activities of about 50 houses affected by 137Cs in Goiânia. We describe the way these contaminations occurred, the instruments used, and the procedures. We also discuss the dose limits established for decontamination and the consequences resulting from thi...

journal_title：Health physics

authors： da Silva CJ,Delgado JU,Luiz MT,Cunha PG,Barros PD

更新日期：1991-01-01 00:00:00

abstract：:Assessing risk from manmade and naturally occurring radionuclides in the environment has long been of primary interest in radiation protection. Early investigations and decisions relied on direct measurements of radiation in environmental media; however, these techniques were inadequate for determining exposure to hum...

journal_title：Health physics

authors： Till JE

更新日期：1988-08-01 00:00:00

abstract：:We determined the suitability of optically stimulated recombination luminescence in quartz for low-level dosimetry of recent events such as radiation accidents. Minimum detectable doses were determined for both fired and unfired quartz. Using a single aliquot technique, good detection of doses on the order of 0.01 Gy ...

journal_title：Health physics

authors： Godfrey-Smith DI,Haskell EH

更新日期：1993-10-01 00:00:00

abstract：:Depleted uranium (DU) is an alpha particle emitter and radioactive heavy metal used in military applications. Due to internalization of DU during military operations and the ensuing chronic internal exposure to DU, there are concerns regarding its potential health effects. Preconceptional paternal irradiation has been...

journal_title：Health physics

authors： Miller AC,Stewart M,Rivas R

更新日期：2010-09-01 00:00:00

abstract：:This paper summarizes an environmental radionuclide baseline study undertaken for the Department of National Defence in Canada. The purpose of the project was to establish levels of radionuclides present in the environment around areas where nuclear propelled vessels may be berthed. Specifically, this report describes...

journal_title：Health physics

authors： Waller EJ,Cole D

更新日期：1999-07-01 00:00:00

abstract：:Thyroids from mule deer (Odocoileus hemionus) were collected in New Mexico, Colorado, Wyoming and Idaho and 129I/127I atom ratios were determined. Iodine-129/127 atom ratios were significantly (P less than 0.005) different among states. Ratios in Wyoming and Idaho control thyroids were significantly (P less than 0.05)...

journal_title：Health physics

authors： Markham OD,Hakonson TE,Whicker FW,Morton JS

更新日期：1983-07-01 00:00:00

abstract：:Soil permeability to air can increase substantially with measurement length scale. We tested the hypothesis that the scale effect could resolve large model underpredictions of radon and soil-gas entry into two experimental basement structures located in natural sandy-loam soil at a field site in Ben Lomond, CA. Previo...

journal_title：Health physics

authors： Garbesi K,Robinson AL,Sextro RG,Nazaroff WW

更新日期：1999-08-01 00:00:00

abstract：:Improved health effects models have been developed for assessing the early effects, late somatic effects and genetic effects that might result from low-LET radiation exposures to populations following a major accident in a nuclear power plant. All the models have been developed in such a way that the dynamics of popul...

journal_title：Health physics

authors： Evans JS,Moeller DW

更新日期：1989-04-01 00:00:00

abstract：:The Pantex Plant significantly revised its Radiological Control Manual to improve its usability, streamline plant procedures, and clarify conflicting guidance. This article overviews the process used to develop the new Radiological Control Manual. ...

journal_title：Health physics

authors： Farrell LM

更新日期：2002-02-01 00:00:00

abstract：:Based on anecdotal evidence and networking with colleagues at other facilities, it has become evident that some radiation safety departments are not adequately staffed and radiation safety professionals need to increase their staffing levels. Discussions with management regarding radiation safety department staffing o...

journal_title：Health physics

authors： Harvey RP

更新日期：2015-02-01 00:00:00

abstract：:The new dose limits recently adopted in Canada (and elsewhere in the world) have made it more difficult to detect some radionuclides by in vivo counting at the average dose limit of 20 mSv. This is particularly true for natural uranium. Two techniques have been developed by the Human Monitoring Laboratory to reduce th...

journal_title：Health physics

authors： Kramer GH,Hauck BM,Allen SA,Dantas BM,Dantas AL,Azeredo AM

更新日期：2003-08-01 00:00:00

abstract：:This paper presents the WNA's worldwide nuclear industry overview on the anticipated growth of the front-end nuclear fuel cycle from uranium mining to conversion and enrichment, and on the related key health, safety, and environmental (HSE) issues and challenges. It also puts an emphasis on uranium mining in new produ...

journal_title：Health physics

authors： Saint-Pierre S,Kidd S

更新日期：2011-01-01 00:00:00