Apparent dose equivalents resulting from severe heating of film dosimeters.

abstract：:For efficiently measuring ultraviolet transmission through clothing materials for a large number of samples, an automated measuring system with a broad-band method has been built and calibrated against a spectroradiometer based instrument. The apparatus can be used to test 60 samples in 25 min. A selection of clothing...

journal_title：Health physics

authors： Zhang Z,Thomas BW,Wong CF,Fleming RA

更新日期：1997-02-01 00:00:00

abstract：:The broad based mission statements of public institutions whose charters are to educate the public is analyzed so that common threads pertinent to homeland security action items can be correlated with the public education scope. The intent of the coordination is to ensure that the prevention component in addition to t...

journal_title：Health physics

authors： McCarthy ME

更新日期：2003-08-01 00:00:00

abstract：:Internal exposure due to inhalation of aerosols depends on the ratio of aerodynamic shape factor (χ) to aerosol mass density (ρ). Inhaled aerosol parameters may differ from the default ρ and χ values provided by the International Commission on Radiological Protection, which are adopted for the assessment of internal e...

journal_title：Health physics

authors： Zhang B,Sheng W,Xu M,Zhang Y,Lei JY,Ma HC

更新日期：2019-10-01 00:00:00

abstract：:A model system was developed previously for disposal of solid laboratory waste that is both radioactive and heat sensitive, e.g., HIV. A double polypropylene bag with charcoal vent filter and absorbent was designed to meet requirements for both steam sterilization and disposal as solid radioactive waste. Earlier work ...

journal_title：Health physics

authors： Stinson MC,Green BL,Marquardt CJ,Ducatman AM

更新日期：1991-07-01 00:00:00

abstract：:Using a series of daily measurements of 125I in the drinking water of North Surrey, England, from November 1988 through May 1990, the accumulated activities in the thyroids of adults drinking such water were calculated on the assumption that the fraction of ingested iodine taken up by the thyroid was f = 0.3 and the t...

journal_title：Health physics

authors： Bowlt C,Howe JR

更新日期：1992-12-01 00:00:00

abstract：:Haemopoietic stem cell assays allow investigation of local radiation damage at any time after contamination. These techniques were used to determine the relative effectiveness of 241Am and 226Ra in inducing damage in various cortical and trabecular bone marrow sites. Male Balb/c mice were injected with either 230 or 6...

journal_title：Health physics

authors： Schoeters GE,Vanderborght OL

更新日期：1983-01-01 00:00:00

abstract：:A mathematical model of the process of collecting and analyzing a grab sample of radon decay products in air can be useful for a number ofpurposes. Among them is predicting the observed counts of alpha particles and/or beta particles (1) under various conditions of radon decay product equilibrium; (2) for various samp...

journal_title：Health physics

authors： Jenkins PH

更新日期：2002-08-01 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：: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：:Coyote fecal samples were collected near a radioactive waste leaching pond and a solid radioactive waste disposal facility and analyzed for radioactivity. Elevated concentrations of 137Cs, 90Sr and 238Pu in the samples from the liquid radioactive waste leaching area were attributed to coyotes ingesting contaminated po...

journal_title：Health physics

authors： Arthur WJ 3rd,Markham OD

更新日期：1982-10-01 00:00:00

abstract：:A dosimetry system for computed tomography (CT) examinations, named WAZA-ARI, is being developed to accurately assess radiation doses to patients in Japan. For dose calculations in WAZA-ARI, organ doses were numerically analyzed using average adult Japanese male (JM) and female (JF) phantoms with the Particle and Heav...

journal_title：Health physics

authors： Takahashi F,Sato K,Endo A,Ono K,Ban N,Hasegawa T,Katsunuma Y,Yoshitake T,Kai M

更新日期：2015-08-01 00:00:00

abstract：:Fifty-one soil samples were collected to a depth of 30 cm in the central and eastern region of the Brazilian state of Rio Grande do Norte. Concentrations of background radionuclides in soil samples were determined by gamma ray spectrometry with an HPGe detector. The average concentrations of 226Ra, 232Th, and 40K in t...

journal_title：Health physics

authors： Malanca A,Pessina V,Dallara G

更新日期：1993-09-01 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 operational radiation protection issues associated with the Z-Machine accelerator located at Sandia National Laboratories are large: a variety of materials can be placed into the machine; these materials can be subjected to a variety of nuclear reactions, producing a variety of activation products. Without full un...

journal_title：Health physics

authors： Culp T

更新日期：2007-02-01 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：:A simple approximation for estimating the centerline gamma absorbed dose rates due to a continuous Gaussian plume was developed. To simplify the integration of the dose integral, this approach makes use of the Gaussian cloud concentration distribution. The solution is expressed in terms of the I1 and I2 integrals whic...

journal_title：Health physics

authors： Overcamp TJ,Fjeld RA

更新日期：1987-08-01 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：:ABSTRACT A significant portion of the cost for D&D is related to low-level waste disposal, decontamination, and final radiological survey. For that reason, a careful cost-benefit analysis must be performed weighing the cost of decontaminating and radiologically surveying the building media for release against the cost...

journal_title：Health physics

authors： Barroso J,Roberts S

更新日期：2003-02-01 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 use of nuclear gauges for process control and elemental analysis in the mining industry in Ghana, West Africa, is wide spread and on the increase in recent times. The Ghana Radiation Protection Board regulates nuclear gauges through a system of notification and authorization by registration or licensing, inspectio...

journal_title：Health physics

authors： Faanu A,Darko EO,Awudu AR,Schandorf C,Emi-Reynolds G,Yeboah J,Glover ET,Kattah VK

更新日期：2010-05-01 00:00:00

abstract：:The concentrations and the organ distribution patterns of 228Th, 230Th and 232Th in two 9-y-old dogs of our beagle colony were determined. The dogs were exposed only to background environmental levels of Th isotopes through ingestion (food and water) and inhalation as are humans. The organ distribution patterns of the...

journal_title：Health physics

authors： Singh NP,Zimmerman CJ,Taylor GN,Wrenn ME

更新日期：1988-03-01 00:00:00

abstract：:For decades, radiation protection philosophy and practice have been the domain of professionals trained in the physical and medical sciences. Radiation protection policy was formulated and implemented largely without consultation with or participation by other professional disciplines or the general public. Although, ...

journal_title：Health physics

authors： Florig HK

更新日期：2001-04-01 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：:Depleted uranium was first used on a large scale as a major component of munitions and armaments employed by the U.S. armed forces during the Gulf War in 1991. In response to concern that exposure to depleted uranium may have been a cause of health problems suffered by returning veterans of that war, an already existi...

journal_title：Health physics

authors： McDiarmid MA,Engelhardt SM,Oliver M

更新日期：2001-03-01 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：: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 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：:The security of medical radioactive sources, both open and sealed, is an important consideration for reducing the risk of an intentional or inadvertent additional radiation dose to the public, according to the principle of keeping any additional radiation dose as low as reasonably achievable. The detection and followi...

journal_title：Health physics

authors： Kroeger EA,Rupp A,Gregor J

更新日期：2020-07-01 00:00:00

abstract：:The process of nuclear fission, which was discovered in 1938, opened the door to the production of nuclear weapons, which were used in 1945 by the United States against Japan in World War II, and to the detonation of >500 nuclear weapons tests in the atmosphere by the United States, the former Soviet Union, the United...

journal_title：Health physics

authors： Bouville A

更新日期：2020-04-01 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