Sorption of 99mTc radiopharmaceutical compounds by soils.

abstract：:This review/commentary addresses recent thermal and electromagnetic modeling studies that use image-based anthropomorphic human models to establish the local absorption of radiofrequency energy and the resulting increase in temperature in the body. The frequency range of present interest is from 100 MHz through the tr...

journal_title：Health physics

authors： Foster KR,Ziskin MC,Balzano Q,Bit-Babik G

更新日期：2018-08-01 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：:New technologies such as intensity modulated and image guided radiation therapy, computer controlled linear accelerators, record and verify systems, electronic charts, and digital imaging have revolutionized radiation therapy over the past 10-15 y. Quality assurance (QA) as historically practiced and as recommended in...

journal_title：Health physics

authors： Amols HI

更新日期：2008-11-01 00:00:00

abstract：:Expressions are derived in three cases for the expectation and uncertainty of body burdens and doses calculated from a linear model of environmental transport and human metabolism in terms of expectation and uncertainty in inputs of discrete, stochastic random variables. Three cases are compared to determine the relat...

journal_title：Health physics

authors： Kercher JR,Robison WL

更新日期：1993-07-01 00:00:00

abstract：:Facing the challenge from terrorism, separatism, and extremism, China spared no effort to be prepared for every possible threat in order to host a safe Olympic Games. According to its statutory role, the Ministry of Health (MOH) is in charge of medical preparedness and response for radiological and nuclear emergencies...

journal_title：Health physics

authors： Liu Y,Lei C,Qin B,Chen H,Su X

更新日期：2010-06-01 00:00:00

abstract：:To estimate of the dispersion trend of 3H and 14C discharged from the Wolsung Nuclear Power Plants, the present level of 3H and 14C in environmental samples in the vicinity of the Wolsong site was studied. Tree-ring cellulose analyses were carried out for retrospective evaluation of 3H and 14C in the environment aroun...

journal_title：Health physics

authors： Kim CK,Lee SK,Rho BH,Lee YG

更新日期：2000-06-01 00:00:00

abstract：:Seventy-five years after the Hanford Site was initially created as the primary plutonium production site for atomic weapons development under the Manhattan Project, the American Nuclear Society and the Health Physics Society are sponsoring a conference from 30 September through 3 October 2018, in Pasco, Washington, ti...

journal_title：Health physics

authors： Glines WM,Markham A

更新日期：2018-05-01 00:00:00

abstract：:In this article an overview of the historical development of light water reactor health physics programs is presented. Operational health physics programs have developed and matured as experience in operating and maintaining light water reactors has been gained. Initial programs grew quickly in both size and complexit...

journal_title：Health physics

authors： Prince RJ,Bradley SE

更新日期：2005-06-01 00:00:00

abstract：:To assess internal annual dose in the general public in Aomori Prefecture, Japan, 80 duplicate cooked diet samples, equivalent to the food consumed over a 400-d period by one person, were collected from 100 volunteers in Aomori City and the village of Rokkasho during 2006–2010 and were analyzed for 11 radionuclides. T...

journal_title：Health physics

authors： Ohtsuka Y,Kakiuchi H,Akata N,Takaku Y,Hisamatsu S

更新日期：2013-10-01 00:00:00

abstract：:Recent advances in wireless technologies have lead to an increase in wireless instrumentation present in healthcare centers. This paper presents an analytical method for characterizing electric field (E-field) exposure within these environments. The E-field levels of the different wireless communications systems have ...

journal_title：Health physics

authors： de Miguel-Bilbao S,Martín MA,Del Pozo A,Febles V,Hernández JA,de Aldecoa JC,Ramos V

更新日期：2013-11-01 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：: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：:Radio frequency currents in the human body, induced by high-frequency and medium-frequency high-power broadcast antennas, were studied theoretically and experimentally. An analytical formula was derived to calculate the foot currents in a grounded semispheroidal model of the human body. The model agrees within 30% wit...

journal_title：Health physics

authors： Jokela K,Puranen L,Gandhi OP

更新日期：1994-03-01 00:00:00

abstract：:The Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) provides a coherent, technically defensible process for establishing that exposed surfaces satisfy site cleanup requirements. Unfortunately, many sites have complications that challenge a direct application of MARSSIM. Example complications incl...

journal_title：Health physics

authors： Johnson R,Durham L,Rieman C

更新日期：2003-06-01 00:00:00

abstract：:During an invited visit to the University of Pittsburgh Medical Center (UPMC) gamma knife facility, officials from the Nuclear Regulatory Commission (NRC) observed what they considered as an apparent violation of the physical presence requirements specified in 10 CFR 35.615(f)(3). This event initiated an inspection an...

journal_title：Health physics

authors： Sheetz M,Swanson D,Yates B

更新日期：2009-02-01 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：:The use of silicon photodiodes for field radon measurements requires the utilization of measuring cells for protection against environmental electromagnetic fields. It is very important to study and optimize the impact of geometry conditions (dimensions of the measuring cell) on the photodiode detection efficiency tha...

journal_title：Health physics

authors： Voytchev M,Klein D,Voytchev K

更新日期：2001-06-01 00:00:00

abstract：:Radiation doses to workers at the Manhattan Engineer District (MED) and Atomic Energy Commission (AEC) sites due to external irradiation during 1940-1960 are reviewed. Categorized radiation dose data were available from AEC annual reports for some years. Annual individual radiation dose data for nine MED/AEC sites for...

journal_title：Health physics

authors： Strom DJ,Smith MH,Swinth KL,Pettengill HJ

更新日期：1996-07-01 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：: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：:Following a large-scale radiation emergency, affected populations will need to be screened soon after for potential contamination (external or internal). Effective management of the available resources can help maximize the screening throughputs. This paper reports the modeling results for screening throughputs in a p...

journal_title：Health physics

authors： Li C,Capello K,Jeng HA,Hauck B,Kramer GH

更新日期：2014-05-01 00:00:00

abstract：:This paper summarizes an environmental radionuclide baseline study undertaken for the Department of National Defence in Canada. The purpose of the project was to establish levels of radionuclides present in the environment around areas where nuclear propelled vessels may be berthed. Specifically, this report describes...

journal_title：Health physics

authors： Waller EJ,Cole D

更新日期：1999-07-01 00:00:00

abstract：:A new method to trace back average radon concentrations in dwellings over several decades in time has been developed. This retrospective radon monitor is based on the measurement of the alpha activity of 210Po deposited in volume traps, e.g., spongy materials used for mattresses and cushions. Polyester samples with di...

journal_title：Health physics

authors： Oberstedt S,Vanmarcke H

更新日期：1996-02-01 00:00:00

abstract：:The concentrations of natural alpha-emitting isotopes of thorium (228Th, 230Th and 232Th) have been determined in 22 sets of human tissue samples obtained at autopsy from Grand Junction, CO and in 10 sets from Washington, DC. Tissues included lung, pulmonary lymph nodes, liver, kidney, bone, a few gonads, spleen and t...

journal_title：Health physics

authors： Ibrahim SA,Wrenn ME,Singh NP,Cohen N,Saccomano G

更新日期：1983-01-01 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：:In 193 cases autopsied between 1945 and 1980, all persons who had been intravascularly injected with Thorotrast in life, the authors found 131 malignant hepatic tumors, 20 liver cirrhoses, 6 myeloid leukemias, 4 erythroleukemias, 5 aplastic anemias, 4 lung cancers, 1 mesothelioma and 1 osteosarcoma. The causes of deat...

journal_title：Health physics

authors： Mori T,Kato Y,Aoki N,Hatakeyama S

更新日期：1983-01-01 00:00:00

abstract：:The calculation of radiation dose estimates to the fetus is often important in nuclear medicine. To obtain the best estimates of radiation dose to the fetus, the best biological and physical models should be employed. In this paper the most recent data available on the placental crossover of many radiopharmaceuticals ...

journal_title：Health physics

authors： Russell JR,Stabin MG,Sparks RB

更新日期：1997-11-01 00:00:00

abstract：:The possibility of the occurrence of radiation accidents is increasing in the Asian region. However, training/education programs for medical professionals have not been established to improve the medical preparedness for radiation emergencies in the Asian region. As one of the activities for radiation emergency medica...

journal_title：Health physics

authors： Park KD,Jang M,Akashi M

更新日期：2010-06-01 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：: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