Measured and computed induced body currents in front of an experimental RF dielectric heater.

abstract：:This study was motivated by the efforts to evaluate radiation risk for leukemia incidence in the Techa River cohort, where the main bone marrow dose contributors were Sr (bone-seeking beta emitters). Energy deposition in bone marrow targets was evaluated by simulating radiation particle transport using computational p...

journal_title：Health physics

authors： Shishkina EA,Timofeev YS,Volchkova AY,Sharagin PA,Zalyapin VI,Degteva MO,Smith MA,Napier BA

更新日期：2020-01-01 00:00:00

abstract：:The air-kerma rate constant gamma delta (and its precursors), as one of the basic radiation characteristics of 192Ir, was determined by many authors. Analysis of accessible data on this quantity led us to the conclusion that published data strongly disagree. That is the reason we calculated this quantity on the basis ...

journal_title：Health physics

authors： Ninković MM,Raiĉevìć JJ

更新日期：1993-01-01 00:00:00

abstract：:One goal of this research was to reproduce the photon specific absorbed fraction calculations of Cristy and Eckerman using their gastrointestinal (GI) tract model. A second goal was to calculate photon specific absorbed fraction values for their GI tract model using electron tracking techniques. A final goal was to ca...

journal_title：Health physics

authors： Poston JW Jr,Kodimer KA,Bolch WE,Poston JW Sr

更新日期：1996-09-01 00:00:00

abstract：:This paper demonstrates the utility of a portable alpha Continuous Air Monitor (CAM) as a bench top scalar counter for multiple sample types. These include using the CAM to count fixed air sample filters and radiological smears. In counting radiological smears, the CAM is used very much like a gas flow proportional co...

journal_title：Health physics

authors： Hayes RB,Peña AM,Goff TE

更新日期：2005-08-01 00:00:00

abstract：:Following a radiation emergency, evacuated, sheltered or other members of the public would require monitoring for external and/or internal contamination and, if indicated, decontamination. In addition, the potentially-impacted population would be identified for biodosimetry/bioassay or needed medical treatment (chelat...

journal_title：Health physics

authors： Miller CW,Ansari A,Martin C,Chang A,Buzzell J,Whitcomb RC Jr

更新日期：2011-08-01 00:00:00

abstract：:When measuring radioactivity, the problem rises of deciding whether or not a sample contains radioactivity in excess of background and above which value the result is meaningful. This decision process is why the notion of decision level was introduced. Whereas there is unanimity about its definition, this is not the c...

journal_title：Health physics

authors： Rigaud D

更新日期：2003-08-01 00:00:00

abstract：:A Monte Carlo based method for the conversion of an in-situ gamma-ray spectrum obtained with a portable Ge detector to photon flux energy distribution is proposed. The spectrum is first stripped of the partial absorption and cosmic-ray events leaving only the events corresponding to the full absorption of a gamma ray....

journal_title：Health physics

authors： Clouvas A,Xanthos S,Antonopoulos-Domis M,Silva J

更新日期：1998-02-01 00:00:00

abstract：:The evaluation of the dose rate distributions from radioactive sources, together with the specific detector locations with respect to those sources, in many cases presents a significant analytical challenge. With the exception of a few, simple source-detector geometries, it is not possible to find an analytical expres...

journal_title：Health physics

authors： Zoeger N,Brandl A

更新日期：2011-11-01 00:00:00

abstract：:The potential harm to a population exposed to radiation from a nuclear accident, such as the one that recently occurred at the Chernobyl plant in the Soviet Union, is of concern to many individuals. The average dose to a population is a useful index of harm (IH) only for linear, nonthreshold-type, quantal (i.e., all-o...

journal_title：Health physics

authors： Scott BR

更新日期：1988-08-01 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：: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：:Large amounts of radioiodines were released into the atmosphere during the accident at the Chernobyl nuclear power plant on 26 April 1986. In order to investigate whether the thyroid cancers observed among children in Belarus could have been caused by radiation exposures from the Chernobyl accident, a team of Belarusi...

journal_title：Health physics

authors： Gavrilin Y,Khrouch V,Shinkarev S,Drozdovitch V,Minenko V,Shemiakina E,Ulanovsky A,Bouville A,Anspaugh L,Voillequé P,Luckyanov N

更新日期：2004-06-01 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：:Many first responders are outfitted with electronic personal dosimeters to recognize and be alerted to radiological hazards during their response operations. These dosimeters provide invaluable measurement data for force protection, allowing the first responder to assess a response situation and take protective measur...

journal_title：Health physics

authors： Fabian R,Bell J,Brandl A

更新日期：2020-08-01 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：: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：:Often, the radiation exposure levels around brachytherapy patient rooms exceed the limits allowed by Nuclear Regulatory Commission (NRC) regulations and National Council on Radiation Protection (NCRP) recommendations. Since a neighboring patient may be present in the radiation field from a brachytherapy patient, or pa...

journal_title：Health physics

authors： Thomadsen B,van de Geijn J,Buchler D,Paliwal B

更新日期：1983-09-01 00:00:00

abstract：:The natural radioactivity in some rock samples in Ikogosi-Ekiti, Southwestern Nigeria, has been measured using a very sensitive gamma spectroscopic system consisting of a 76 mm x 76 mm NaI(TI) scintillation detector system coupled to a versatile Canberra Series 10 plus multichannel analyzer. The average concentrations...

journal_title：Health physics

authors： Ajayi OS

更新日期：2000-08-01 00:00:00

abstract：:The performance characteristics of sliced lung sets were compared to lung sets with activity homogeneously distributed throughout the lung tissue substitute material. The activity estimate from planar sources differs from the estimate from homogeneous sources by a factor of 0.88 to 1.09 depending on the photon energy....

journal_title：Health physics

authors： Kramer GH,Hauck BM,Lee TY,Chang SY

更新日期：1999-05-01 00:00:00

abstract：:On 30 September 1999, three workers were severely exposed to neutrons and gamma rays in a criticality accident that occurred at a uranium conversion facility in Tokai-mura, Ibaraki Prefecture, Japan. Radiochemical analyses of 32P and 45Ca induced by neutrons in bone matrix were carried out after the deaths of two of t...

journal_title：Health physics

authors： Miyamoto K,Watanabe Y,Yukawa M,Takeda H,Nishimura Y,Ishigure N,Hirama T,Akashi M

更新日期：2002-07-01 00:00:00

abstract：:Bioassay and laboratory survey schedules can be generated using a radioisotope inventory program. This paper discusses the use of laboratory activity, past performance and operational factors for laboratory survey frequency determination, and use of laboratory activity for bioassay scheduling. Mayo Clinic has recently...

journal_title：Health physics

authors： Classic KL,Gross GP

更新日期：1990-08-01 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：:The radioactivity of coals and ashes from Spanish coal power plants (CPP) was evaluated. This radioactivity is due mainly to 40K and the U and Th series. The samples were measured in secular equilibrium using a NaI(T1) detector. The annual average airborne releases were also evaluated. An atmospheric dispersion model ...

journal_title：Health physics

authors： Alvarez MC,Garzon L

更新日期：1989-11-01 00:00:00

abstract：:An evaluation of available personnel monitoring data and radium body burden records of dial painters handling an annual average of 1.5 Ci of radium indicates that they received an average of about 2 rem/person whole body exposure, 3 rem to the lungs from radon inhalation and 0.2 rad to the bone from radium body burden...

journal_title：Health physics

authors： Simpson RE,Shuman FG,Moghissi AA,Blackburn JA,Bailey ED

更新日期：1983-05-01 00:00:00

abstract：:The distribution of 239Pu in a human whole body is reported. The body contained 246 Bq of 239Pu of which 130 Bq (52.8%) was found in the lungs and associated lymph nodes. Of the remaining 116 Bq (47.2%) that constituted the systemic deposition, 51.2 Bq (44%) were in the skeleton, 48.6 Bq (42%) in the liver, and the re...

journal_title：Health physics

authors： McInroy JF,Kathren RL,Voelz GL,Swint MJ

更新日期：1991-03-01 00:00:00

abstract：:The Pakistan Research Reactor-I (PARR-I) is a swimming pool type research reactor originally designed and built for a thermal power of 5 MW using High Enriched Uranium (HEU) fuel. In 1990-1991 the reactor was redesigned, partially decommissioned and recommissioned to operate with Low Enriched Uranium (LEU) fuel at a t...

journal_title：Health physics

authors： Ali A,Orfi SD,Manzur H,Aslam M

更新日期：2001-05-01 00:00:00

abstract：:DOE facilities are required to conduct environmental surveillance to verify that facility operations are operated within the approved risk envelope and have not caused undue risk to the public and the environment. Given a reduced budget, a strategy for analyzing environmental surveillance data was developed to set pri...

journal_title：Health physics

authors： Shyr LJ,Herrera H,Haaker R

更新日期：1997-11-01 00:00:00

abstract：:Emergency responders from the Department of Energy are trained regularly to assess the environmental consequences of a radiological or nuclear incident. While drills and exercises are highly effective tools in rehearsing for an emergency, the accidents at the Fukushima Daiichi Nuclear Power Plants presented real-world...

journal_title：Health physics

authors： Musolino SV,Clark H,McCullough T,Pemberton W

更新日期：2012-05-01 00:00:00

abstract：:The shaft portion of the left femur from an individual occupationally exposed to Pu was used to investigate the suitability of an ethylenediamine extraction technique to separate mineral bone from organic material. Marrow in the lumen was removed before the extraction technique was used and was analyzed separately for...

journal_title：Health physics

authors： Miglio JJ,Willis LC

更新日期：1987-06-01 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