Twelve years of follow up of cases with old 241Am internal contamination.

abstract：:This paper presents an analysis of the implications of some recent studies performed to characterize uranium products from modern uranium recovery facilities important for worker protection. Assumptions about the solubility (related to the molecular species being produced) of these materials in humans are critical to ...

journal_title：Health physics

authors： Brown SH,Chambers DB

更新日期：2014-11-01 00:00:00

abstract：:The ICRP effective dose equivalent has been compared with a weighted dose equivalent, computed by treating the entire remainder instead of the sample of five remainder organs in the ICRP method as uniformly radiosensitive, for dose distributions from three common diagnostic exposures: chest, dental full-mouth and dent...

journal_title：Health physics

authors： Gibbs SJ

更新日期：1989-04-01 00:00:00

abstract：:The plant uptake of 244Cm, 137Cs, 238Pu and 90Sr was measured for trees in a flood plain forest whose soils were contaminated by aqueous discharges from a nuclear-fuel chemical separations facility. Uptake of the naturally occurring radionuclide 226Ra was also measured. The relative availability of the nuclides was 23...

journal_title：Health physics

authors： Pinder JE 3rd,McLeod KW,Alberts JJ,Adriano DC,Corey JC

更新日期：1984-09-01 00:00:00

abstract：:In Region of Interest (ROI) Fluoroscopy, an ROI filter is inserted into the x-ray beam in order to decrease the patient exposure in the peripheral part of the field of view. A filter placement device has been designed and constructed for the practical implementation of ROI fluoroscopy. When unmodified spot films are r...

journal_title：Health physics

authors： Kezerashvili M,Rudin S,Bednarek D

更新日期：1997-01-01 00:00:00

abstract：:A method is presented to determine the uncertainties in the reported dose due to incorporated plutonium for the Mayak Worker Cohort. The methodology includes errors generated by both detection methods and modeling methods. To accomplish the task, the method includes classical statistics, Monte Carlo, perturbation, and...

journal_title：Health physics

authors： Krahenbuhl MP,Bess JD,Wilde JL,Vostrotin VV,Suslova KG,Khokhryakov VF,Slaughter DM,Miller SC

更新日期：2005-07-01 00:00:00

abstract：:Medical health physics is the profession dedicated to the protection of healthcare providers, members of the public, and patients from unwarranted radiation exposure. Medical health physicists must be knowledgeable in the principles of health physics and in the applications of radiation in medicine. Advances in medica...

journal_title：Health physics

authors： Vetter RJ

更新日期：2004-05-01 00:00:00

abstract：:It seems obvious that if a significant increase in occupancy occurs in the immediate vicinity of any radiation room a reexamination of the adequacy of the shielding should be performed. We discuss a facility where a new building was constructed in close proximity to an existing medical linear accelerator and no consid...

journal_title：Health physics

authors： Barish RJ

更新日期：2012-02-01 00:00:00

abstract：:In 2015, the Bundeswehr Institute of Radiobiology organized a North Atlantic Treaty Organization exercise to examine the significance of clinical signs and symptoms for the prediction of late-occurring acute radiation syndrome. Cases were generated using either the Medical Treatment Protocols for Radiation Accident Vi...

journal_title：Health physics

authors： Majewski M,Combs SE,Trott KR,Abend M,Port M

更新日期：2018-07-01 00:00:00

abstract：:Accidents involving exposure to radiation or radioactive materials may involve an unusual degree of emotional trauma. Methods that may be employed in dealing with such trauma are discussed in relation to a specific accident in which a radiation worker was injured and seriously contaminated with 241Am. ...

journal_title：Health physics

authors： Brown WR

更新日期：1983-10-01 00:00:00

abstract：:In recent years, regulatory emphasis on the prevention of loss, theft and intentional misuse of radioactive materials at academic institutions has forced radiation safety personnel to devote increasing amounts of time and effort to address security issues. NRC regulations require that radioactive materials used or sto...

journal_title：Health physics

authors： Farley DV,Normandin RD,Martz MD,Langhorst SM

更新日期：2003-11-01 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：: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：: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：:Exposure to extremely low frequency electric and magnetic fields will induce electric fields and currents within the body, but these are almost always much lower than those that can stimulate peripheral nerve tissue. Guidance on exposure to such fields has been published by NRPB and ICNIRP, which is based on the avoid...

journal_title：Health physics

authors： Saunders RD,Jefferys JG

更新日期：2002-09-01 00:00:00

abstract：:Recently, data on exposures of humans as well as animals to fission products in plumes emitted by underground Soviet tests have been declassified by the Khazakhstan government and published in English. Similar human intakes of gross fission product mixtures that caused acute prodromal symptoms have not been previously...

journal_title：Health physics

authors： Brodsky A,Reeves G

更新日期：2009-01-01 00:00:00

abstract：:The federal government has had the ability to respond to incidents of national significance for decades. Since 11 September 2001, there have been enhancements to existing federal assets and the creation of new federal assets. This presentation will provide an overview of the more significant federal assets. Pivotal to...

journal_title：Health physics

authors： Remick AL,Crapo JL,Woodruff CR

更新日期：2005-11-01 00:00:00

abstract：:Cosmic rays make a significant, but not normally a dominant, contribution to the radiation dose of people all over the world. However, doses rise with altitude and the earth's magnetic field means that latitude also becomes important. Solar activity imposes a further, time dependent, variation. This article gives more...

journal_title：Health physics

authors： Kendall GM

更新日期：2000-11-01 00:00:00

abstract：:The Mayak Production Association (MPA) was the first plutonium production plant in the former Soviet Union. Workers at the MPA were exposed to relatively large internal radiation intakes and external radiation exposures, particularly in the early years of plant operations. This paper describes the updated dosimetry da...

journal_title：Health physics

authors： Vasilenko EK,Khokhryakov VF,Miller SC,Fix JJ,Eckerman K,Choe DO,Gorelov M,Khokhryakov VV,Knyasev V,Krahenbuhl MP,Scherpelz RI,Smetanin M,Suslova K,Vostrotin V

更新日期：2007-09-01 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：:Databases are being created that contain verified and updated dosimetry and worker history information for workers at the Mayak Production Association. Many workers had significant external and internal exposures, particularly during the early years (1948-1952) of operation. These dosimetric and worker history data ar...

journal_title：Health physics

authors： Khokhryakov V,Suslova K,Aladova E,Vasilenko E,Miller SC,Slaughter DM,Krahenbuhl MP

更新日期：2000-07-01 00:00:00

abstract：:Indoor 222Rn in high-rise buildings originates inside the building materials, then diffuses gradually through the intergranular spaces of the material into the room atmosphere. Therefore, the radionuclide contents and the physical properties of the building materials are important for indoor 222Rn levels in Hong Kong....

journal_title：Health physics

authors： Tso MY,Ng CY,Leung JK

更新日期：1994-10-01 00:00:00

abstract：:A survey of the 222Rn concentrations in 106 homes in the four main towns of the Central Asturias region was carried out over three years. A total of 1,014 measurements was obtained using passive radon charcoal canisters. The 222Rn concentrations fit a log-normal distribution law, with a geometric mean of 23 Bq m(-3). ...

journal_title：Health physics

authors： Pérez Iglesias JM,Alvarez Alvarez MC,Dopico Vivero MT,Garzón Ruipérez L

更新日期：1996-05-01 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：:A simple passive sampler for 222Rn with up to 24-hr integration times can be constructed by using a diffusion barrier to regulate the effective sampling rate of an ambient temperature activated carbon bed. The diffusion element serves to make sampler performance relatively independent of the properties of the type of ...

journal_title：Health physics

authors： Prichard HM,Mariën K

更新日期：1985-06-01 00:00:00

abstract：:Radiation dose calculations in nuclear medicine depend on quantification of activity via planar and/or tomographic imaging methods. However, both methods have inherent limitations, and the accuracy of activity estimates varies with object size, background levels, and other variables. The goal of this study was to eval...

journal_title：Health physics

authors： Pereira JM,Stabin MG,Lima FR,Guimarães MI,Forrester JW

更新日期：2010-11-01 00:00:00

abstract：:This paper describes an analytically based method for modeling the time-dependent radionuclide areal densities of contaminated soil surface layers when the soil experiences simultaneous leaching, surface erosion and chain radioactive decay. The model is used to predict time-dependent radionuclide areal densities in a ...

journal_title：Health physics

authors： Jarzemba MS,Manteufel RD

更新日期：1997-12-01 00:00:00

abstract：:Between 1952 and 1992, more than 200 large radiobiology studies were conducted in research institutes throughout Europe, North America, and Japan to determine the effects of external irradiation and internal emitters on the lifespan and tissue toxicity development in animals. At Argonne National Laboratory, 22 externa...

journal_title：Health physics

authors： Haley B,Wang Q,Wanzer B,Vogt S,Finney L,Yang PL,Paunesku T,Woloschak G

更新日期：2011-06-01 00:00:00

abstract：:210Po and its precursor 210Pb in cigarette smoke contribute a significant radiation dose to the lungs of smokers. In this work, the concentration of 210Po was determined in 17 of the most frequently smoked cigarette brands in Italy. Samples of tobacco, fresh filters, ash, and post-smoking filters were analyzed; 210Po ...

journal_title：Health physics

authors： Desideri D,Meli MA,Feduzi L,Roselli C

更新日期：2007-01-01 00:00:00

abstract：:While it is implicitly recognized that the benefits of diagnostic imaging far outweigh any theoretical radiogenic risks, quantitative estimates of the benefits are rarely, if ever, juxtaposed with quantitative estimates of risk. This alone - expression of benefit in purely qualitative terms versus expression of risk i...

journal_title：Health physics

authors： Zanzonico PB

更新日期：2016-03-01 00:00:00

abstract：:Multiple planar high-purity Ge detectors have been used for the past year to detect, localize and quantify several radionuclides in radiation workers. The advantages of these detectors over NaI(Tl), phoswich, and arrays of planar Ge detectors attached to a single cryostat are illustrated by the results of the measurem...

journal_title：Health physics

authors： Palmer HE,Rieksts G

更新日期：1984-10-01 00:00:00