Measurement of activity in anthropomorphic organ phantoms.

abstract：:Internal dose assessment depends on the use of mathematical formulas for dose calculation and models of the human body and its organs. A simple, unified method for internal dose calculations is described, which brings together and simplifies concepts used in nuclear medicine and occupational internal dose systems prev...

journal_title：Health physics

authors： Stabin MG,Siegel JA

更新日期：2003-09-01 00:00:00

abstract：:At least 350,000 workers at U.S. radiation facilities are being followed up to monitor their mortality experience, with particular reference to cancer. Although these studies are expensive, they are needed from the standpoint of public health and radiation protection; they also provide a useful check that the risk ext...

journal_title：Health physics

authors： Shore RE

更新日期：1990-07-01 00:00:00

abstract：:Improved lung models provide a more accurate assessment of dose from inhalation exposures and, therefore, more accurate dose-response relationships for risk evaluation and exposure limitation. Epidemiological data for externally irradiated persons indicate that the numbers of excess respiratory tract carcinomas differ...

journal_title：Health physics

authors： Masse R,Cross FT

更新日期：1989-01-01 00:00:00

abstract：:Concern about the threat of a terrorist attack with a Radiological Dispersal Device has increased considerably over the last few years, and this comes along with an immense challenge, especially regarding medical treatment of combined injuries with incorporated radioactive fragments. In such scenarios, the identificat...

journal_title：Health physics

authors： Majewski M,Nestler K,Veit DA,Diekmeyer B,Waldeck S,Port M,Becker BV

更新日期：2020-07-01 00:00:00

abstract：:Software has been developed to aid in the management of a radiation safety quality control program in diagnostic radiology. The core of the system is a data base of radiation safety activities. Software design goals were the prioritization, scheduling, and reporting of these activities. Computerization has helped orga...

journal_title：Health physics

authors： David G,Price SC

更新日期：1992-01-01 00:00:00

abstract：:Linear accelerator workloads for each available photon energy are important quantities to know for radiation safety considerations, and presented is a technique to measure the workload using paired detectors. The signals from the two detectors can give sufficient information to separate the signal contributions from 6...

journal_title：Health physics

authors： Corns R,Schroeder C,Sandhu G,Henderson K,McKay I

更新日期：2019-09-01 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：:Storage of radon-producing material in two silos and two waste pits is one of the major environmental and occupational issues at a former uranium production facility, now a Superfund site. In addition, up to 100 metric tons of thorium is stored on the northeast side of the site. Concentrations of radium up to 17,600 B...

journal_title：Health physics

authors： Merrill EA,Akbar-Khanzadeh F

更新日期：1998-05-01 00:00:00

abstract：:Cohort-based dose-response analyses can be biased if based on a comparison group that is not comparable to the exposed persons with respect to uncontrolled factors related to disease incidence or mortality. When data exist over a range of doses including the very low dose region, internal regression standardized analy...

journal_title：Health physics

authors： Cologne JB,Preston DL

更新日期：2001-05-01 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：:CR-39 plastic was attached to household glass objects to learn whether residual radioactivity from radon decay products could be measured and correlated with cumulative radon exposures over defined time periods. Such an approach could be used to increase the completeness of exposure data collected in epidemiologic stu...

journal_title：Health physics

authors： Mahaffey JA,Parkhurst MA,James AC,Cross FT,Alavanja MC,Boice JD,Ezrine S,Henderson P,Brownson RC

更新日期：1993-04-01 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：:The Human Monitoring Laboratory, which is the Canadian National Calibration Reference Centre for In-Vivo Measurements, has been conducting an annual intercomparison program for whole body counting facilities since 1989. Each year a number of phantoms are prepared for participants to measure the accuracy, precision, si...

journal_title：Health physics

authors： Kramer GH

更新日期：1995-10-01 00:00:00

abstract：:Radon progeny are positively charged immediately after formation. A negatively charged electret collects radon progeny atoms which are produced in the diffusion chamber. The detector sensitivity may be increased by using an electret in front of solid state nuclear track detector. Dependence of detection sensitivity on...

journal_title：Health physics

authors： Nikezić D,Krstić D

更新日期：1995-12-01 00:00:00

abstract：:Monte Carlo neutron transport calculations were performed to obtain the neutron response functions of a superheated drop detector (SDD-100) that is surrounded by polyethylene of various thicknesses. The calculational results suggest that a SDD-100 surrounded by 2.54 cm of polyethylene gives the best dose-equivalent re...

journal_title：Health physics

authors： Wang CK

更新日期：1992-03-01 00:00:00

abstract：:This study estimated the radiation exposure attributed to nuclear medicine examinations during the period of 1985 through 1992 in Slovak Republic. It was accomplished by survey of nuclear medicine facilities from 1987 to 1992. In addition, a detailed analysis of nuclear medicine practice was obtained for 1992. The mea...

journal_title：Health physics

authors： Ftácniková S,Ragan P

更新日期：1995-07-01 00:00:00

abstract：:Intestinal absorption of strontium from an oral test dose was studied in 13 healthy human volunteers using double tracer techniques with two stable strontium isotopes as tracers. Defined amounts of one isotope were administered orally, while tracer amounts of the second isotope were injected intravenously. Two differe...

journal_title：Health physics

authors： Höllriegl V,Li WB,Oeh U,Roth P

更新日期：2006-03-01 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 acute and chronic effects of radiation on children have been and will continue to be of great social, public health, scientific, and clinical importance. The focus of interest on ionizing radiation and children has been clear for over half a century and ranges from the effects of fallout from nuclear weapons testi...

journal_title：Health physics

authors： Mettler FA Jr,Constine LS,Nosske D,Shore RE

更新日期：2013-11-01 00:00:00

abstract：:In the process of decommissioning a tritium-handling laboratory, direct-immersion and water-extraction methods for measuring tritium contamination in concrete were compared to a heating-cooling method. For this evaluation, concrete pieces chipped from contaminated concrete walls and floors were used. The direct-immers...

journal_title：Health physics

authors： Kawano T,Kuroyanagi M,Tabei T

更新日期：2007-08-01 00:00:00

abstract：:Reliable radon laboratory operations motivated the construction of three radon gas calibration chambers. One chamber is used for background calibrations while the other two cover a radon gas concentration range of 110 to >5,550 Bq m(-3) (3-150 pCi L(-1)). The chambers entered commercial service, for tertiary radon cal...

journal_title：Health physics

authors： Distenfeld CH

更新日期：2007-08-01 00:00:00

abstract：:Findings of the Life Span Study (LSS) cohort of atomic-bomb survivors are a primary source for quantitative risk estimates that underlie radiation protection. Because of the size and length of follow-up, the LSS provides considerable information on both the nature of the dose response and on how radiation-associated e...

journal_title：Health physics

authors： Preston DL,Pierce DA,Shimizu Y,Ron E,Mabuchi K

更新日期：2003-07-01 00:00:00

abstract：:Many governmental and non-governmental agencies are involved in the planning for radiation events in the U.S. We will focus on medical management after mass casualty events, specifically the involvement of the Radiation Injury Treatment Network (RITN), a voluntary consortium of medical centers across the continental U...

journal_title：Health physics

authors： Davids MS,Case C Jr,Confer DL,Weisdorf DJ,Weinstock DM

更新日期：2010-06-01 00:00:00

abstract：:Experience gained during a field training exercise with a Medical Reserve Corps unit on the screening of large groups of individuals for possible contamination with radioactive material revealed that while exercise participants were generally attentive to the proper use of protective equipment and detectors, they tend...

journal_title：Health physics

authors： Emery RJ,Sprau DD,Morecook RC

更新日期：2008-11-01 00:00:00

abstract：:Reconstructed meteorological data are often used in some form of long-term wind trajectory models for estimating the historical impacts of atmospheric emissions. Meteorological data for the straight-line Gaussian plume model are put into a joint frequency distribution, a three-dimensional array describing atmospheric ...

journal_title：Health physics

authors： Hamby DM

更新日期：2002-01-01 00:00:00

abstract：:Radiation exposure of the biota in the shoreline area of the Chernobyl Nuclear Power Plant Cooling Pond was assessed to evaluate radiological consequences from the decommissioning of the Cooling Pond. This paper addresses studies of radioactive contamination of the terrestrial faunal complex and radionuclide concentra...

journal_title：Health physics

authors： Oskolkov BY,Bondarkov MD,Gaschak SP,Maksimenko AM,Hinton TG,Coughlin D,Jannik GT,Farfán EB

更新日期：2011-10-01 00:00:00

abstract：:The International Commission on Radiological Protection system of radiological protection is based on three pillars: science, ethical and social values, and experience. As far as ethics and the protection of humans are concerned, the system combines the values of beneficence/non-maleficence, prudence, justice, and dig...

journal_title：Health physics

authors： Lochard J

更新日期：2016-02-01 00:00:00

abstract：:Low-dose radiation is widely used across the world for the diagnosis of many diseases by means of a variety of imaging technologies. However, the harmful effects of exposure to low-dose radiation during medical examination remain controversial. The authors studied the effects of medical diagnostic low-dose x rays (i.e...

journal_title：Health physics

authors： Tungjai M,Phathakanon N,Rithidech KN

更新日期：2017-05-01 00:00:00

abstract：:Requirements for additional security measures for sealed radioactive sources have evolved since they were first implemented after the terrorist events of 11 September 2001. This paper will describe the sequence of those measures, commencing with the early orders issued by the U.S. Nuclear Regulatory Commission to the ...

journal_title：Health physics

authors： Klinger JG

更新日期：2016-02-01 00:00:00

abstract：:Standardized activated charcoal canisters (according to the U.S. EPA) have been used to collect radon exhaled from concrete surfaces covered with thin plaster (categorically different from thick plaster) of 32 buildings of different ages (0.5-31 y) in Hong Kong. Concrete surfaces covered with thin plaster is the commo...

journal_title：Health physics

authors： Yu KN,Chan TF,Young EC

更新日期：1995-05-01 00:00:00