Ultraviolet response of CaF2:Tm with high-temperature treatment.

abstract：:This paper provides information on the effects of distance and attenuation in lead sheet and gypsum board of the 0.511 MeV photon produced by positron annihilation. Exposure rates are projected external to an adult injected with 185 MBq (5 mCi) of 18F in a fluorodeoxyglucose solution and for the same activity in a sma...

journal_title：Health physics

authors： Courtney JC,Mendez P,Hidalgo-Salvatierra O,Bujenovic S

更新日期：2001-08-01 00:00:00

abstract：:This study provides a retrospective assessment of doses to 13 organs for the most common radiographic examinations conducted between the 1930s and 2010, taking into account typical technical parameters used for radiography during those years. This study is intended to be a resource on changes in medical diagnostic rad...

journal_title：Health physics

authors： Melo DR,Miller DL,Chang L,Moroz B,Linet MS,Simon SL

更新日期：2016-09-01 00:00:00

abstract：:Radon-222 diffusion length has been measured for 28 Danish soils and sediments. Samples were placed in a diffusion column connected to a 222Rn reservoir and the transport of 222Rn through the column was measured. The diffusion length was found by comparing the measured data to time-dependent diffusion theory. Dry silt...

journal_title：Health physics

authors： Søgaard-Hansen J,Damkjaer A

更新日期：1987-11-01 00:00:00

abstract：:A database of soil-to-plant transfer factors for radiocesium and radiostrontium has been compiled for arable crops from published and unpublished sources. The database is more extensive than previous compilations of data published by the International Union of Radioecologists, containing new information for Scandinavi...

journal_title：Health physics

authors： Nisbet AF,Woodman RF

更新日期：2000-03-01 00:00:00

abstract：:A system for evaluating quality factors, Q, based on the microdosimetric distribution of the radiation field of interest has been set up; it makes use of a specific quality function (SQF) to obtain--given microdosimetric spectra--values for Q. The advantages of a system based on lineal energy are well recognized. Furt...

journal_title：Health physics

authors： Zaider M

更新日期：1996-06-01 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：:In situ and laboratory gamma spectroscopy were used to characterize natural background levels of radiation in the soil at eight sites around the Yucca Mountain Range. The purpose of this practical field analysis was to determine if published empirical in situ calibration factors would yield accurate quantitative speci...

journal_title：Health physics

authors： Benke RR,Kearfott KJ

更新日期：1997-08-01 00:00:00

abstract：:A new 241Am lung monitoring system without shielding was devised by using an imaging plate system. The Lawrence Livermore National Laboratory's realistic torso phantom containing a 241Am lung was covered by imaging plates sealed in lightproof bags. The imaging plate system displayed 241Am lung images characteristic of...

journal_title：Health physics

authors： Hirota M,Kurihara O,Takada C,Takasaki K,Momose T,Deji S,Ito S,Saze T,Nishizawa K

更新日期：2007-07-01 00:00:00

abstract：:Fractal analysis is introduced in the field of environmental health physics. In particular, it is applied to the complex and inhomogeneous deposition pattern of radioactivity after the Chernobyl accident. The patchiness of 137Cs hot spots is quantified by a fractal dimension as low as 1. The problem of finding hot spo...

journal_title：Health physics

authors： Raes F,De Cort M,Graziani G

更新日期：1991-08-01 00:00:00

abstract：:Assumptions supporting a chronic aqueous release methodology are inappropriate for estimating dose from accidental discharges. A method of modeling acute or accidental releases is being developed for predicting maximum individual dose. Standardization of consumption rates and usage factors for acute aqueous releases i...

journal_title：Health physics

authors： Hamby DM

更新日期：1992-06-01 00:00:00

abstract：:Determining the consumption of milk contaminated with 131I, resulting from atmospheric nuclear weapons tests conducted at the Nevada Test Site, by the United States population during the 1950s constitutes one part of the methodology used by the National Cancer Institute to assess radiation exposures to Americans. In o...

journal_title：Health physics

authors： Dreicer M,Bouville A,Wachholz BW

更新日期：1990-11-01 00:00:00

abstract：:The possibility of the occurrence of radiation accidents is increasing in the Asian region. However, training/education programs for medical professionals have not been established to improve the medical preparedness for radiation emergencies in the Asian region. As one of the activities for radiation emergency medica...

journal_title：Health physics

authors： Park KD,Jang M,Akashi M

更新日期：2010-06-01 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：:The U.S. Environmental Protection Agency (EPA) operates an environmentally controlled chamber for purposes of exposing various radon and decay product measurement equipment to known (222)Rn concentrations. Exposure durations range from 1 h to several months, and (222)Rn concentrations vary between 37 and 4,440 Bq m(-3...

journal_title：Health physics

authors： Ronca-Battista M,Budd G,McLemore S

更新日期：2013-02-01 00:00:00

abstract：:This commentary evaluates two sets of guidelines for human exposure to radiofrequency (RF) energy, focusing on the frequency range above the "transition" frequency at 3-10 GHz where the guidelines change their basic restrictions from specific absorption rate to incident power density, through the end of the RF band at...

journal_title：Health physics

authors： Foster KR,Ziskin MC,Balzano Q

更新日期：2017-07-01 00:00:00

abstract：:Measurements of radon at 50 sites with varying geology indicate that outdoor air in Nevada is comparable to that measured nationwide by Hopper et al. (1991). The statewide median of 15 Bq m-3 (0.4 pCi L-1) is essentially the same as the nationwide median. The range is considerable: from 2.6-52 Bq m-3 (0.07-1.40 pCi L-...

journal_title：Health physics

authors： Price JG,Rigby JG,Christensen L,Hess R,LaPointe DD,Ramelli AR,Desilets M,Hopper RD,Kluesner T,Marshall S

更新日期：1994-04-01 00:00:00

abstract：:The (241)Am contents in the United States Transuranium and Uranium Registries' (USTUR) case 0102 leg phantom were previously estimated to be 1,243 ± 11 Bq. Recent analysis of the computed tomography images of the phantom revealed multiple bone structures missing from various regions of the phantom skeleton including: ...

journal_title：Health physics

authors： Tabatadze G,Brey RR,Kramer GH,Capello K,Meldrum DJ

更新日期：2013-01-01 00:00:00

abstract：:The destruction of the Unit 4 reactor at the Chernobyl Nuclear Power Plant resulted in the generation of radioactive contamination and radioactive waste at the site and in the surrounding area (referred to as the Exclusion Zone). In the course of remediation activities, large volumes of radioactive waste were generate...

journal_title：Health physics

authors： Napier BA,Schmieman EA,Voitsekovitch O

更新日期：2007-11-01 00:00:00

abstract：:On 29 December 1970, the Occupational Safety and Health Act of 1970 established the Occupational Safety and Health Administration (OSHA). This article on OSHA, Title 29, Part 1910.1096 Ionizing Radiation standard was written to increase awareness of the employer, the workforce, state and federal governments, and those...

journal_title：Health physics

authors： Lewis RK

更新日期：2016-10-01 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：: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：:One of the steps that has been taken to expedite the radiation dose reconstruction process is the development of "site profiles." These reports, one of which has been prepared for each of the major U.S. Department of Energy nuclear sites, include detailed assessments of the dose rates at a given site due to on-site ex...

journal_title：Health physics

authors： Rollins EM

更新日期：2008-07-01 00:00:00

abstract：:To elucidate any connection between high radon concentrations and low-infiltration houses, we have concurrently measured the 222Rn concentration and the infiltration rate in U.S. houses. Three housing surveys have been undertaken: one in "energy-efficient" houses located throughout the U.S. and two in "conventional" h...

journal_title：Health physics

authors： Nero AV,Boegel ML,Hollowell CD,Ingersoll JG,Nazaroff WW

更新日期：1983-08-01 00:00:00

abstract：:The standard mathematical treatment of the buildup and decay of airborne radionuclides on a filter paper uses the solutions of the so-called Bateman equations adapted to the sampling process. These equations can be interpreted as differential equations for the expectation of an underlying stochastic process, which des...

journal_title：Health physics

authors： Groer PG,Lo Y

更新日期：1996-12-01 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：:Following the 1986 Chernobyl event, large amounts of radioactive materials were deposited in nearby areas. Concentrations of various radionuclides were measured in air and surface soil. To study the resuspension of radioactive particulate, three different exposure situations were developed on the basis of the collecte...

journal_title：Health physics

authors： Nair SK,Miller CW,Thiessen KM,Garger EK,Hoffman FO

更新日期：1997-01-01 00:00:00

abstract：:CR-39 plastic was attached to household glass objects to learn whether residual radioactivity from radon decay products could be measured and correlated with cumulative radon exposures over defined time periods. Such an approach could be used to increase the completeness of exposure data collected in epidemiologic stu...

journal_title：Health physics

authors： Mahaffey JA,Parkhurst MA,James AC,Cross FT,Alavanja MC,Boice JD,Ezrine S,Henderson P,Brownson RC

更新日期：1993-04-01 00:00:00

abstract：:The role of environmental radiation in the etiology of birth defects, stillbirths, and other adverse outcomes of pregnancy was evaluated for 13,329 Navajos born at the Public Health Service/Indian Health Service Hospital in the Shiprock, NM, uranium mining area (1964-1981). More than 320 kinds of defective congenital ...

journal_title：Health physics

authors： Shields LM,Wiese WH,Skipper BJ,Charley B,Benally L

更新日期：1992-11-01 00:00:00

abstract：:In the past 30 y, the numbers and types of fluoroscopically-guided (FG) procedures have increased dramatically. The objective of the present study is to provide estimated radiation doses to physician specialists, other than cardiologists, who perform FG procedures. The authors searched Medline to identify English-lang...

journal_title：Health physics

authors： Kim KP,Miller DL,Berrington de Gonzalez A,Balter S,Kleinerman RA,Ostroumova E,Simon SL,Linet MS

更新日期：2012-07-01 00:00:00

abstract：:The purpose of this study is to support retrospective dose estimation for epidemiological studies by providing estimates of historical absorbed organ doses to the brain, lens of the eye, salivary glands, and thyroid from intraoral dental radiographic examinations performed from 1940 to 2009. We simulated organ doses t...

journal_title：Health physics

authors： Fontana RC,Pasqual E,Miller DL,Simon SL,Cardis E,Thierry-Chef I

更新日期：2020-02-01 00:00:00