Summer outdoor radon variations in Canada and their relation to soil moisture.

abstract：:A rugged resin concentration method followed by gamma counting was developed for measuring 226Ra and 228Ra in drinking water. Using typical distribution system pressure, 310 kPa (45 psig), radium in a 20-L sample was concentrated 100-fold onto 200 mL of ion-exchange resin beads that were then sealed in a glass jar for...

journal_title：Health physics

authors： Clifford DA,Higgins EA

更新日期：1992-05-01 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：:The primary target for uranium toxicity is the kidney. The most frequently used guideline for uranium kidney burdens is the International Commission on Radiological Protection value of 3 microg U g(-1) kidney, a value that is based largely upon chronic studies in animals. In the present effort, a risk model equation w...

journal_title：Health physics

authors： Roszell LE,Hahn FF,Lee RB,Parkhurst MA

更新日期：2009-03-01 00:00:00

abstract：:This paper describes a program of laboratory and field studies undertaken to assess the health impact of radioactive debris from the re-entry of the Soviety nuclear-powered satellite, Cosmos 954, on 24 January 1978. It was estimated that about one-quarter of the reactor core descended over Canada's Northwest Territori...

journal_title：Health physics

authors： Tracy BL,Prantl FA,Quinn JM

更新日期：1984-08-01 00:00:00

abstract：:Twenty-six white male subjects, who worked with plutonium (239Pu) during World War II at Los Alamos, have been given medical examinations periodically over a period of 42 y to identify potential health effects. Inhalation was the primary mode of Pu exposures. The latest examinations, including urine bioassay and in-vi...

journal_title：Health physics

authors： Voelz GL,Lawrence JN

更新日期：1991-08-01 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：:A survey of 222Rn levels in 453 houses of physics professors from 101 universities in 42 states (plus the District of Columbia) was carried out with 1-y exposures of nuclear track detectors, accompanied by an extensive questionnaire. The geometric mean concentration was 38 Bq/m3 (1.03 pCi/l), the standard deviation wa...

journal_title：Health physics

authors： Cohen BL

更新日期：1986-08-01 00:00:00

abstract：:Measurements of the gross beta activity of snow samples from four Alpine glaciers contaminated by radioactive fallout from the Chernobyl nuclear accident and a gamma-spectrum analysis of selected samples are reported. The results are discussed with respect to possible risks to the population from using meltwater from ...

journal_title：Health physics

authors： Ambach W,Rehwald W,Blumthaler M,Eisner H,Brunner P

更新日期：1989-01-01 00:00:00

abstract：:Due to their high stability and accumulation over time, translocations are currently the cytogenetic marker of choice for radiation dose estimation following protracted radiation overexposures or overexposures that occurred up to several decades in the past (environmental/occupational/medical exposures). In the course...

journal_title：Health physics

authors： Beinke C,Meineke V

更新日期：2012-08-01 00:00:00

abstract：:The immersion doses from external exposure to a Gaussian plume of noble gases accidentally released into the atmosphere have been calculated. A numerical integration procedure employing Gauss-Legendre of 64th order has been used. The numerical procedure allows calculating the dose rate at any downwind horizontal or ve...

journal_title：Health physics

authors： Raza S,Avila R

更新日期：2005-09-01 00:00:00

abstract：:Data were obtained from the literature for gonad and body weights and for the Pu or Ce content of the gonads and body at death for several laboratory animal species, five human Pu injection cases, and 731 human adults exposed environmentally to Pu in fallout. Data for Pu concentration in gonads, liver, and bone sample...

journal_title：Health physics

authors： Thomas RG,Durbin PW,McInroy JF,Healy JW

更新日期：1989-01-01 00:00:00

abstract：:Diagnostic reference levels (DRLs) for medical x-ray procedures are being implemented currently in the Netherlands. By order of the Dutch Healthcare Inspectorate, a survey has been conducted among 20 Dutch hospitals to investigate the level of implementation of the Dutch DRLs in current radiological practice. It turns...

journal_title：Health physics

authors： Bijwaard H,Valk D,de Waard-Schalkx I

更新日期：2015-04-01 00:00:00

abstract：:The exposure of German aircraft crews to cosmic radiation varies both with solar activity and operational factors of airline business. Data come from the German central dose registry and cover monthly exposures of up to 37,000 German aircraft crewmembers that were under official monitoring. During the years 2004 to 20...

journal_title：Health physics

authors： Frasch G,Kammerer L,Karofsky R,Schlosser A,Stegemann R

更新日期：2014-12-01 00:00:00

abstract：:Ecological and evolutionary considerations suggest that radiation hormesis is made up of two underlying components. The first (a) is background radiation hormesis based upon the background exposure to which all organisms are subjected throughout evolutionary time. The second and much larger component (b) is stress-der...

journal_title：Health physics

authors： Parsons PA

更新日期：2002-04-01 00:00:00

abstract：:Open-faced and diffusion-barrier charcoal canisters were individually exposed to a fixed temperature, humidity, and radon concentration in a chamber for a period of 7 d. The radon progeny activity in the canister under study was measured every 3 h. A total of 15 runs were made for the open-faced canisters and nine run...

journal_title：Health physics

authors： Luetzelschwab JW,Hastings L,Ellis SM

更新日期：1994-01-01 00:00:00

abstract：:The Human Monitoring Laboratory has created a voxel phantom from computer tomography scans of the Lawrence Livermore National Laboratory (LLNL) torso phantom for use in Monte Carlo simulations. The voxel phantom has been compared to the previously developed mathematical phantom using Monte Carlo simulations and both v...

journal_title：Health physics

authors： Kramer GH,Capello K,Sung J

更新日期：2007-12-01 00:00:00

abstract：:One-dimensional scans of gamma-ray emitting contaminants were conducted on lysimeters from the RadFLEX facility at the Savannah River Nationals Laboratory (SRNL). The lysimeters each contained a contamination source that was buried in SRNL soil. A source consisted of Cs, Co, Ba, and Eu incorporated either into a solid...

journal_title：Health physics

authors： Erdmann BJ,Powell BA,Kaplan DI,DeVol TA

更新日期：2018-05-01 00:00:00

abstract：:With possibilities for radiation terrorism and intensified concerns about nuclear accidents since the recent Fukushima Daiichi event, the potential exposure of large numbers of individuals to radiation that could lead to acute clinical effects has become a major concern. For the medical community to cope with such an ...

journal_title：Health physics

authors： Swartz HM,Flood AB,Williams BB,Dong R,Swarts SG,He X,Grinberg O,Sidabras J,Demidenko E,Gui J,Gladstone DJ,Jarvis LA,Kmiec MM,Kobayashi K,Lesniewski PN,Marsh SD,Matthews TP,Nicolalde RJ,Pennington PM,Raynolds T,Sal

更新日期：2012-09-01 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：:²²²Rn (radon) and ²²⁰Rn (thoron) progeny are known to interfere with determining the presence of long-lived transuranic radionuclides, such as plutonium and americium, and require from several hours up to several days for conclusive results. Methods are proposed that should expedite the analysis of air samples for det...

journal_title：Health physics

authors： Konzen K,Brey R

更新日期：2012-05-01 00:00:00

abstract：:Radiation exposure of the biota in the shoreline area of the Chernobyl Nuclear Power Plant Cooling Pond was assessed to evaluate radiological consequences from the decommissioning of the Cooling Pond. This paper addresses studies of radioactive contamination of the terrestrial faunal complex and radionuclide concentra...

journal_title：Health physics

authors： Oskolkov BY,Bondarkov MD,Gaschak SP,Maksimenko AM,Hinton TG,Coughlin D,Jannik GT,Farfán EB

更新日期：2011-10-01 00:00:00

abstract：:During the Full-Scale Radiological Dispersal Device Field Trials carried out in Suffield in 2012, several suites of detection and sampling equipment were used to measure and characterize the explosive dispersal of the short half-life radioactive tracer Lanthanum-140 ((140)La). The equipment deployed included networks ...

journal_title：Health physics

authors： Korpach E,Berg R,Erhardt L,Lebel L,Liu C

更新日期：2016-05-01 00:00:00

abstract：:In this article an overview of the historical development of light water reactor health physics programs is presented. Operational health physics programs have developed and matured as experience in operating and maintaining light water reactors has been gained. Initial programs grew quickly in both size and complexit...

journal_title：Health physics

authors： Prince RJ,Bradley SE

更新日期：2005-06-01 00:00:00

abstract：:Many governmental and non-governmental agencies are involved in the planning for radiation events in the U.S. We will focus on medical management after mass casualty events, specifically the involvement of the Radiation Injury Treatment Network (RITN), a voluntary consortium of medical centers across the continental U...

journal_title：Health physics

authors： Davids MS,Case C Jr,Confer DL,Weisdorf DJ,Weinstock DM

更新日期：2010-06-01 00:00:00

abstract：:The author was invited to talk about ICRP perceptions of a look to the future. Many questions will be addressed when the International Commission on Radiological Protection (ICRP) initiates a revision of its basic recommendations from 1977, which were published in ICRP Publication 26. This process will take several ye...

journal_title：Health physics

authors： Lindell B

更新日期：1988-08-01 00:00:00

abstract：:The combined expertise of radiation epidemiologists and laboratory experimentalists is required to accurately define health risks from exposure to a low/very low radiation dose. Although stochastic risk can be estimated when a known threshold dose is exceeded, risk must be inferred from data transference at sub-thresh...

journal_title：Health physics

authors： Dainiak N

更新日期：2016-03-01 00:00:00

abstract：:Discharges of radioactive materials from the nuclear fuel reprocessing plant at Sellafield in the United Kingdom give rise to 137Cs and 134Cs in fish caught in the Irish Sea. Measurements made on fish catches landed in the Irish Republic show average activities of 68 and 3 Bq/kg (wet) of 137Cs and 134Cs, respectively....

journal_title：Health physics

authors： McAulay IR,Doyle C

更新日期：1985-03-01 00:00:00

abstract：:The operational radiation protection issues associated with the Z-Machine accelerator located at Sandia National Laboratories are large: a variety of materials can be placed into the machine; these materials can be subjected to a variety of nuclear reactions, producing a variety of activation products. Without full un...

journal_title：Health physics

authors： Culp T

更新日期：2007-02-01 00:00:00

abstract：:Available medical records of plutonium injectees exposed in experimental studies of plutonium biokinetics under Manhattan Engineer District auspices have been reviewed for subsequent medical findings potentially related to the plutonium exposures. Five subjects who had been injected with approximately 11 kBq 239Pu, an...

journal_title：Health physics

authors： Stebbings JH

更新日期：1999-05-01 00:00:00

abstract：:A complete, historical dataset is presented of radionuclide resuspension-factors. These data span six orders of magnitude in time (ranging from 0.1 to 73,000 d), encompass more than 300 individual values, and combine observations from events on three continents. These data were then used to derive improved, empirical ...

journal_title：Health physics

authors： Maxwell RM,Anspaugh LR

更新日期：2011-12-01 00:00:00