Ingestion of 226Ra from activated paints on military equipment: transfer factors and doses.

abstract：:The aim of this paper is to evaluate the risks and doses for the internal contamination of the radiochemistry staff in a high workload medical cyclotron facility. The doses from internal contamination derive from the inhalation of radioactive gas leakage from the cells by personnel involved in the synthesis processes ...

journal_title：Health physics

authors： Calandrino R,del Vecchio A,Savi A,Todde S,Belloli S

更新日期：2009-10-01 00:00:00

abstract：:Timely achievement of uranium series' secular equilibrium is not always feasible. Our objective is to mathematically justify methods for early uranium series gamma spectroscopy measurements that can accurately predict naturally occurring radioactive material equilibrium activities long before equilibrium is establishe...

journal_title：Health physics

authors： Wilson CA 4th,Matthews KL 2nd,Hamideh AM,Wang WH

更新日期：2019-10-01 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：:Consideration of the equilibrium factor F between the concentration of the radon daughters and the concentration of radon is a part of the evaluation of the measurements of radon daughter concentrations in dwellings when applying limits. Measurements of radon, radon daughters and air exchange rates have been carried o...

journal_title：Health physics

authors： Swedjemark GA

更新日期：1983-08-01 00:00:00

abstract：:A simple method based on inductively coupled plasma mass spectrometry (ICP-MS) was developed to identify exposure to depleted uranium by measuring the isotopic composition of uranium in urine. Exposure to depleted uranium results in a decreased percentage of 235U in urine samples causing measurements to vary between n...

journal_title：Health physics

authors： Ejnik JW,Carmichael AJ,Hamilton MM,McDiarmid M,Squibb K,Boyd P,Tardiff W

更新日期：2000-02-01 00:00:00

abstract：:Fallout 239,240Pu concentrations in some autopsy tissues from the general population in Japan are described. Body burden and relative distribution among tissues of plutonium were obtained by extrapolating using the mass of relevant tissues of the normal Japanese adult. 239,240Pu-to-90Sr body burden ratio was obtained....

journal_title：Health physics

authors： Kawamura H,Tanaka G

更新日期：1983-01-01 00:00:00

abstract：:The use of radiation has a substantial beneficial impact, particularly in the areas of medicine, energy production, basic science research, and industrial applications. Radiation protection knowledge and experience are required for acquiring and implementing scientific knowledge to protect workers, members of the publ...

journal_title：Health physics

authors： Hricak H,Dauer LT

更新日期：2017-02-01 00:00:00

abstract：:The radionuclide contents of conventional natural raw building materials, coal ash and slag, and finished building products have been determined using gamma-ray spectrometry. Results of brick measurements in their original geometry and in crushed form are compared. The radioactive concentrations in cement and sand, mo...

journal_title：Health physics

authors： Man CK,Lau SY,Au SC,Ng WK

更新日期：1989-09-01 00:00:00

abstract：:In order to estimate the uncertainty of the radiation risk associated with the photon energy in epidemiological studies, photon-fluence-weighted LET values were quantified for photon radiation fields with the target organs and irradiation conditions taken into consideration. The photon fluences giving a unit absorbed ...

journal_title：Health physics

authors： Sasaki M

更新日期：2017-08-01 00:00:00

abstract：:Radiostrontium isotopes (Sr, Sr, and Sr) are major fission by-products in nuclear reactors, in radiological events, and in environmental radioactive contamination. A method to analyze Sr and Sr in water has been developed using gradient elution with dilute hydrochloric acid and cation exchange resin, followed by carbo...

journal_title：Health physics

authors： Nguyen DM,Moody WA,Williamson JA

更新日期：2019-06-01 00:00:00

abstract：:A very limited number of field experiments have been performed to assess the relative radiation detection sensitivities of commercially available equipment used to detect radioactive sources in recycled metal scrap. Such experiments require the cooperation and commitment of considerable resources on the part of vendor...

journal_title：Health physics

authors： Clouvas A,Xanthos S,Takoudis G,Potiriadis C,Silva J

更新日期：2005-02-01 00:00:00

abstract：:This paper describes an investigation into the distribution of radiation doses to workers, undertaken at the request of ICRP Committee 4. Three main questions are considered. Firstly, the distribution of annual doses to workers is described. Doses are generally well below the ICRP dose limits and most are below 15 mSv...

journal_title：Health physics

authors： Johnston PD,Brenot J,Kendall GM

更新日期：1986-11-01 00:00:00

abstract：:Three models for the biodistribution and dosimetry of 82Rb-chloride were reviewed and a proposal is made for the best dosimetry for this agent to be adopted. Data from three proposed biokinetic models for 82Rb-chloride were used to calculate dose estimates for the compound, and the results were compared. The blood con...

journal_title：Health physics

authors： Stabin MG

更新日期：2010-12-01 00:00:00

abstract：:South Africa contains some of the world's largest mineral deposits, which include uranium. Uranium is mined as a by-product of gold production. The uranium content of the surface soil and groundwater in South Africa has been measured and shows marked variation, depending on location. Herbal remedies are collected by t...

journal_title：Health physics

authors： Steenkamp V,Stewart MJ,Chimuka L,Cukrowska E

更新日期：2005-12-01 00:00:00

abstract：:This survey measured radiofrequency (RF) fields from wireless local area networks (WLANs) using Wi-Fi technology against a background of RF fields in the environment over the frequency range 75 MHz-3 GHz. A total of 356 measurements were conducted at 55 sites (including private residences, commercial spaces, health ca...

journal_title：Health physics

authors： Foster KR

更新日期：2007-03-01 00:00:00

abstract：:Three statistical control chart methods were investigated to determine the one with the highest detection probability and the best average run length (ARL). The three control charts include the Shewhart control chart of count data, cumulative sum (CUSUM) analysis of count data (Poisson CUSUM), and CUSUM analysis of ti...

journal_title：Health physics

authors： Luo P,Devol TA,Sharp JL

更新日期：2012-06-01 00:00:00

abstract：:The electret passive environmental 222Rn monitor (E-PERM) is an extension of electret dosimeters used for measurement of x and gamma radiation. An E-PERM consists of a small cup or canister, having an electret at the bottom, and a filtered inlet at the top. The 222Rn gas entering through the filter and the decay produ...

journal_title：Health physics

authors： Kotrappa P,Dempsey JC,Hickey JR,Stieff LR

更新日期：1988-01-01 00:00:00

abstract：:The Normalised Specific Activity (NSA), a quantity which relates the concentration of a contaminant per unit mass of vegetation to its daily rate of ground deposition, has been used as the basis for determining interception factors and retention half-lives for radioactive contaminants deposited on grain and leafy vege...

journal_title：Health physics

authors： Simmonds JR,Linsley GS

更新日期：1982-11-01 00:00:00

abstract：:Continuously repeated or frequent periodic measurements of the radiation environment in the absence of an identified source of ionizing radiation provide large data sets on the ambient background. Statistical evaluation of these data allows for the identification and quantification of the relevant background distribut...

journal_title：Health physics

authors： Brandl A

更新日期：2013-03-01 00:00:00

abstract：:This study estimated the radiation exposure attributed to nuclear medicine examinations during the period of 1985 through 1992 in Slovak Republic. It was accomplished by survey of nuclear medicine facilities from 1987 to 1992. In addition, a detailed analysis of nuclear medicine practice was obtained for 1992. The mea...

journal_title：Health physics

authors： Ftácniková S,Ragan P

更新日期：1995-07-01 00:00:00

abstract：:Radiation sickness is challenging to diagnose, and the diagnosis is often based on nonclinical data. In accidents where patients are not aware of their exposure to radiation (so-called "occult exposures"), a correct diagnosis can take weeks or months. The purpose of this study is to review the time to diagnosis of rad...

journal_title：Health physics

authors： Kunkler J,Adams TG,Manger M,Casagrande R

更新日期：2018-08-01 00:00:00

abstract：:The data presented show early results from a longitudinal survey of "therapeutic" ultrasonic instrument performance in clinical physiotherapy. Previous studies undertaken in North America and the United Kingdom have shown that these units tend not to be scientifically tested and recalibrated, and have been found to ha...

journal_title：Health physics

authors： Fyfe MC,Parnell SM

更新日期：1982-09-01 00:00:00

abstract：:After the release of radioactive materials from a large radiological dispersal device (e.g., dirty bomb), improvised nuclear detonation, or nuclear power plant accident, up to hundreds of square miles may be contaminated. A portion of this area will be evacuated; however, people living in the portion that is not evacu...

journal_title：Health physics

authors： Snyder E,Drake J,Cardarelli J,Hall K,Szabo J,Demmer R,Lindberg M,Riggs K,James R

更新日期：2014-09-01 00:00:00

abstract：:Indoor 222Rn concentrations were measured in 37 houses with alpha track detectors placed in water-use rooms near water sources (bathrooms, laundry rooms, and kitchens) and in non-water-use living rooms, dining rooms, and bedrooms away from water sources. Results show that relative contributions of 222Rn to indoor air ...

journal_title：Health physics

authors： Folger PF,Nyberg P,Wanty RB,Poeter E

更新日期：1994-09-01 00:00:00

abstract：:An investigation of the performance of a diffusion barrier, charcoal-based 222Rn monitor under several artificial environmental conditions showed that both temperature and relative humidity levels affect 222Rn uptake. A physical model was developed adequately describing the temperature effects, while an empirical mode...

journal_title：Health physics

authors： Pojer PM,Peggie JR,O'Brien RS,Solomon SB,Wise KN

更新日期：1990-01-01 00:00:00

abstract：:Elsewhere in this issue, Robin Elliott outlined a successful program for performing annual radiation safety management program audits. The results of such audits provide a useful means of evaluating and correcting deficiencies or weaknesses in a radiation safety program. At our institution we also perform an annual au...

journal_title：Health physics

authors： Miller KL,Erdman MC

更新日期：1999-11-01 00:00:00

abstract：:The objective of the present study was to assess the lung cancer risk induced by exposures to radon progeny of people living in some areas of Transylvania, Romania. Indoor radon concentrations were measured in 667 dwellings of Stei area, Cluj, Bistrita-Nasaud, Sibiu, and Alba counties. Measurements were performed usin...

journal_title：Health physics

authors： Truta-Popa LA,Dinu A,Dicu T,Szacsvai K,Cosma C,Hofmann W

更新日期：2010-09-01 00:00:00

abstract：:Considering that in 1899 neither biotechnology nor the electronic revolution were foreseen, some humility might be advisable when one looks into the crystal ball for the future role of radiation sources. In the past 50 years, nuclear medicine, nuclear weapons, and nuclear power have had a huge impact in the world. In ...

journal_title：Health physics

authors： Blix H

更新日期：2001-04-01 00:00:00

abstract：:Calculations of Committed Effective Dose Equivalent (CEDE) due to inhalation using four of the five methods suggested in the United States Nuclear Regulatory Commission Regulatory Guide 8.34 (1992a) were performed to determine if any significant differences in the calculated value of the CEDE exist for typical power p...

journal_title：Health physics

authors： Windham JR,Kearfott KJ,Mis FJ

更新日期：1994-11-01 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