A Comparison of Measurements and Calculations of the Effects of Scattered Radiation on Dosimeter Calibration in a Calibration Range.

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：:Following the attacks of 11 September 2001, emergency preparedness within the U.S. Department of Health and Human Services, as well as at the Department of Defense and other federal agencies, received higher visibility, new mandates and increased funding. Emergency deployment teams increased the frequency of drills to...

journal_title：Health physics

authors： Grace MB,Cliffer KD,Moyer BR,Coleman CN,Prasher JM,Hatchett R,Mercier J,Manning RG,Bader JL,Disbrow GL,Kovacs GR

更新日期：2011-09-01 00:00:00

abstract：:Treatment of diseases with x rays began within months of Roentgen's discovery, and within four years x rays were being used successfully for the treatment of skin cancers. Deep-seated cancers began to be treated successfully in the 1920's with the advent of "deep" x-ray units and, especially, once supervoltage therapy...

journal_title：Health physics

authors： Orton CG

更新日期：1995-11-01 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：: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：: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：:Global concerns over energy supply and climate change have given rise to an increase in uranium prospecting, mining and extraction. The changing world economy is spreading the use of advanced nuclear and radiation-related technologies to many parts of the world, giving rise to global initiatives on nuclear energy and ...

journal_title：Health physics

authors： Kase KR,Metcalf P

更新日期：2011-01-01 00:00:00

abstract：:The monetary value of the averted dose is a key element in the implementation of the optimization principle both in radiation praxis and intervention. The main concept of this principle is to select options so as to maintain exposures at a reasonable level. The feature of this concept is to look for the minimal total ...

journal_title：Health physics

authors： Eged K,Kanyár B,Kis Z,Tatay T,Ivády A,Volent G

更新日期：2001-02-01 00:00:00

abstract：:Spot urine samples are often taken for emergency radiobioassay to provide a quick dose assessment for contaminated individuals. The subsequent dosimetric analysis requires a urinary output normalization method to adjust spot sampling to daily urine excretion. A rapid specific gravity method that was developed for 24-h...

journal_title：Health physics

authors： Dai X,Kutschke K,Priest N

更新日期：2011-08-01 00:00:00

abstract：:Experiments were performed with 30 11 cm × 42.5 cm × 5.5 cm NaI(Tl) detectors to better understand their positional response. Spectra were collected using 0.02 to 0.15 MBq point sources of Am, Cs, Co, and Ba positioned on lines parallel and perpendicular to the long axis of the crystal along both the narrow and wide d...

journal_title：Health physics

authors： Noey JD,Xiao JB,DiFulvio A,Sulieman NA,Carmona MA,Chung LK,El-Amir IN,Frank SJ,Liu K,Schiefer K,Seekamp JM,Sosa CS,Trimas DJ,Vyas AP,Kearfott KJ

更新日期：2019-10-01 00:00:00

abstract：:As in the past, the principle role of the scientist in the courtroom is to assist attorneys, judges, and jurors in understanding the complex scientific and technical issues before them. In the last decade, however, changes in the law and the increasing technical complexity of many disputes have introduced new factors ...

journal_title：Health physics

authors： Auxier JA,Prichard HM

更新日期：2001-09-01 00:00:00

abstract：:The dose reconstruction of populations potentially affected by the accident at the Fukushima Daiichi nuclear power plant in March 2011 is of great importance. However, it has been difficult to assess internal thyroid doses to Fukushima residents (mainly from their intake of I) due to the lack of direct measurements. F...

journal_title：Health physics

authors： Kim E,Yajima K,Hashimoto S,Tani K,Igarashi Y,Iimoto T,Ishigure N,Tatsuzaki H,Akashi M,Kurihara O

更新日期：2020-01-01 00:00:00

abstract：:The use of x-ray generators for diagnostic radiology in the medical sector in Cameroon, Central Africa, is wide spread and on the increase in recent times. Regulatory control of x-ray machines used in medical sector has been achieved in the Littoral Region of Cameroon by means of notification and authorization systems...

journal_title：Health physics

authors： Beyala Ateba JF,Simo A,Moyo Ndontchueng M,Sabouang JF

更新日期：2017-11-01 00:00:00

abstract：:Diagnostic radiology dosimeters should comply with International Electrotechnical Commission (IEC) 61674 standard in order to perform measurements with sufficient accuracy and reliability. The calibration of a dosimeter is performed under, and pertains to, reference conditions. However, in most cases, dosimeters are u...

journal_title：Health physics

authors： Hourdakis CJ,Boziari A,Manetou A

更新日期：2010-05-01 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 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：:Nuclear weapons testing was conducted in the atmosphere at numerous sites worldwide between 1946 and 1980, which resulted in exposures to local populations as a consequence of fallout of radioactive debris. The nuclear tests were conducted by five nations (United States, Soviet Union, United Kingdom, France, and China...

journal_title：Health physics

authors： Simon SL,Bouville A

更新日期：2002-05-01 00:00:00

abstract：:The average absorbed dose due to DNA-bound 3H in a cell nucleus was estimated by a Monte Carlo simulation for a model nucleus which was assumed to be spheroidal. The shape of the cell nucleus was found to be of minor importance in determining the average absorbed dose. The volume of the cell nucleus was the major dose...

journal_title：Health physics

authors： Saito M,Ishida MR,Streffer C,Molls M

更新日期：1985-04-01 00:00:00

abstract：:Ionizing radiation exposure to the lens of the eye is a known cause of cataractogenesis. Historically, it was believed that the acute threshold dose for cataract formation was 5 Sv, and annual dose limits to the lens were set at 150 mSv. Recently, however, the International Commission on Radiological Protection has re...

journal_title：Health physics

authors： Thome C,Chambers DB,Hooker AM,Thompson JW,Boreham DR

更新日期：2018-03-01 00:00:00

abstract：:The geometrical structure of the lung is one of the main factors governing inhaled particle deposition; structural differences among different species are, therefore, of great importance for extrapolation modeling. A statistical analysis of morphometric data for the human and rat tracheobronchial tree reveals signific...

journal_title：Health physics

authors： Hofmann W,Koblinger L,Martonen TB

更新日期：1989-01-01 00:00:00

abstract：:Time-dependent chemical compositions for 13N and 15O induced in the air atmosphere of a high energy electron accelerator room have been studied using a computer simulation method. A radiation chemistry model was developed to describe the chemical reactions of 13N and 15O species with the air molecules and their radiol...

journal_title：Health physics

authors： Endo A,Henshaw J,Mignanelli MA

更新日期：1998-04-01 00:00:00

abstract：:An analysis and evaluation of 241Am in the whole body of a donor to the U.S. Transuranium Registry (USTR) is presented in five parts. The USTR donor's pertinent medical history, autopsy findings and antemortem evaluations of intake and systemic burden are described in Parts I and II. The donor was a 49-yr-old male Cau...

journal_title：Health physics

authors：

更新日期：1985-10-01 00:00:00

abstract：:In Western Canada, there are many plants that process natural gas to remove impurities (CO2, H2S, H2O) and recover natural gas liquids (propane, butane, etc.). Trace quantities of 222Rn present in the inlet stream are concentrated in streams rich with propane. Potential hazards to plant operators include direct inhala...

journal_title：Health physics

authors： Drummond I,Boucher P,Bradford B,Evans H,McLean J,Reczek E,Thunem H

更新日期：1990-07-01 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：:Quantification of the biologically relevant dose is required for the establishment of cause-and-effect between radiation detriment or burden and important biological outcomes. Most epidemiological studies of unanticipated radiation exposure fail to establish cause and effect because of an inability to construct a vali...

journal_title：Health physics

authors： Pass B,Baranov AE,Kleshchenko ED,Aldrich JE,Scallion PL,Gale RP

更新日期：1997-03-01 00:00:00

abstract：:This article presents an optimization study for radiological protection in a U mine. The mathematical model of the alpha contamination associated with short-lived Rn daughters allows the comparison of various protection strategies through a cost-effectiveness analysis. Determining the optimal protection strategy is ca...

journal_title：Health physics

authors： Lombard J,Oudiz A,Zettwoog P

更新日期：1986-04-01 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：: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

abstract：:Radioactive sources have been inadvertently incorporated into consignments of scrap metal in various locations throughout the world. In 1990, a 3.7 GBq 137 Cs source, due for transfer from a Scottish industrial establishment to one in England, was mistakenly included in a scrap consignment destined for Irish Steel, a ...

journal_title：Health physics

authors： O'Grady JO,Hone C,Turvey FJ

更新日期：1996-04-01 00:00:00

abstract：:The key issues that have been raised at the meeting on Cosmic Radiation Doses to Air Crew and Astronauts are identified. The paper summarizes the radiation environment and radiation risks associated with exposures to both groups. Finally, the summary concludes that the risks do justify action. ...

journal_title：Health physics

authors： Clarke RH

更新日期：2000-11-01 00:00:00