Signal Processing and Its Effect on Scanning Efficiencies for a Field Instrument for Detecting Low-energy Radiation.

abstract：:Calculations of absorbed doses in organs of the human body and the total effective dose due to Cs in soil as a source of external exposure are presented in this work. Calculations were done using the MCNP-4B software package. The assumption was made that photons with an energy of 662 keV are emitted in a cylindrical v...

journal_title：Health physics

authors： Krstić D,Nikezić D

更新日期：2006-09-01 00:00:00

abstract：:The many reports and other authoritative documents developed and published by the National Council on Radiation Protection and Measurements (NCRP) have been of great service to the nation and the radiation protection community since its Congressional charter was signed into law 50 y ago. There will be a continuing nee...

journal_title：Health physics

authors： Bushberg JT

更新日期：2015-02-01 00:00:00

abstract：:Following the tragic events of 11 September 2001, the nation has made significant strides in preparing for disasters and emergencies of all types. Federal funding to state, local, territorial, and tribal public health and healthcare systems has required an all-hazards preparedness approach with special focus on those ...

journal_title：Health physics

authors： Herrmann J

更新日期：2018-02-01 00:00:00

abstract：:The standard mathematical treatment of the buildup and decay of airborne radionuclides on a filter paper uses the solutions of the so-called Bateman equations adapted to the sampling process. These equations can be interpreted as differential equations for the expectation of an underlying stochastic process, which des...

journal_title：Health physics

authors： Groer PG,Lo Y

更新日期：1996-12-01 00:00:00

abstract：:The variability in radiosensitivity across the human population is governed in part by genetic factors. The ability to predict therapeutic response, identify individuals at greatest risk for adverse clinical responses after therapeutic radiation doses, or identify individuals at high risk for carcinogenesis from envir...

journal_title：Health physics

authors： Story M,Ding LH,Brock WA,Ang KK,Alsbeih G,Minna J,Park S,Das A

更新日期：2012-11-01 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：:Due to their high stability and accumulation over time, translocations are currently the cytogenetic marker of choice for radiation dose estimation following protracted radiation overexposures or overexposures that occurred up to several decades in the past (environmental/occupational/medical exposures). In the course...

journal_title：Health physics

authors： Beinke C,Meineke V

更新日期：2012-08-01 00:00:00

abstract：:It seems obvious that if a significant increase in occupancy occurs in the immediate vicinity of any radiation room a reexamination of the adequacy of the shielding should be performed. We discuss a facility where a new building was constructed in close proximity to an existing medical linear accelerator and no consid...

journal_title：Health physics

authors： Barish RJ

更新日期：2012-02-01 00:00:00

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：:Soils, vegetation, small mammals, and birds were measured for uranium series radionuclides at three sites near the operating Key Lake uranium mill in northern Saskatchewan. Sites, impacted by windblown tailings and mill dust, had significantly higher concentrations of uranium, 226Ra, 210Pb, and 210Po in soils, litter,...

journal_title：Health physics

authors： Thomas PA

更新日期：2000-06-01 00:00:00

abstract：:Instrumentation and application methodologies for rapidly and accurately estimating individual ionizing radiation dose are needed for on-site triage in a radiological/nuclear event. One such methodology is an in vivo X-band, electron paramagnetic resonance, physically based dosimetry method to directly measure the rad...

journal_title：Health physics

authors： Swarts SG,Sidabras JW,Grinberg O,Tipikin DS,Kmiec MM,Petryakov SV,Schreiber W,Wood VA,Williams BB,Flood AB,Swartz HM

更新日期：2018-07-01 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 purpose of this study was to determine the effect of contrast material and retrospective ECG-gating on radiation dose in an adult cardiac dual-energy computed tomography (DECT). Sixty-two patients underwent CT cardiac examination with a Somatom Definition Flash DECT using tube voltages of 100 kV without filter and...

journal_title：Health physics

authors： Paul J,Jacobi V,Bazrafshan B,Farshid P,Vogl T

更新日期：2013-08-01 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：:The "radon emanation" method of analysis for Rn and Ra in natural waters has been used by scientists for more than 30 years. We have examined the use of a new plastic bottle design as a viable option and improvement to traditional glass designs. The advantages of the new design over that used previously in our laborat...

journal_title：Health physics

authors： Stringer CE,Burnett WC

更新日期：2004-12-01 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：:In 1992, the University of Texas Health Science Center at Houston (UTHSCH) Radiation Safety Program began assembling data on a monthly basis that described various program drivers and associated activities. At the end of calendar year 2002, a decade of data had been collected, so the information was summarized into a ...

journal_title：Health physics

authors： Emery RJ,Gutierrez JM

更新日期：2014-08-01 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：: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：:After the release of radioactive materials from a large radiological dispersal device (e.g., dirty bomb), improvised nuclear detonation, or nuclear power plant accident, up to hundreds of square miles may be contaminated. A portion of this area will be evacuated; however, people living in the portion that is not evacu...

journal_title：Health physics

authors： Snyder E,Drake J,Cardarelli J,Hall K,Szabo J,Demmer R,Lindberg M,Riggs K,James R

更新日期：2014-09-01 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：:Radiations accidents involving high exposures require accurate assessment of radiation dose for correct surgical or medical management. Techniques involving computed tomography and antimyosin-antibody scintigraphy were evaluated in an experimental model of acute localized irradiation overexposure to 192Ir. Ten rabbits...

journal_title：Health physics

authors： Albérini JL,Lefaix JL,Bansard JY,Bourguet P

更新日期：2000-01-01 00:00:00

abstract：:The deployment of a radiological dispersal device (RDD) is likely to result in relatively low radiation exposure of the targeted population, insufficient to cause a severe radiation detriment. Nevertheless, due to atmospheric dispersion of the radioactive material, an urban area equaling several city blocks could be a...

journal_title：Health physics

authors： Steinhausler F

更新日期：2005-11-01 00:00:00

abstract：:During the Full-Scale Radiological Dispersal Device Field Trials carried out in Suffield in 2012, several suites of detection and sampling equipment were used to measure and characterize the explosive dispersal of the short half-life radioactive tracer Lanthanum-140 ((140)La). The equipment deployed included networks ...

journal_title：Health physics

authors： Korpach E,Berg R,Erhardt L,Lebel L,Liu C

更新日期：2016-05-01 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：:Soil permeability to air can increase substantially with measurement length scale. We tested the hypothesis that the scale effect could resolve large model underpredictions of radon and soil-gas entry into two experimental basement structures located in natural sandy-loam soil at a field site in Ben Lomond, CA. Previo...

journal_title：Health physics

authors： Garbesi K,Robinson AL,Sextro RG,Nazaroff WW

更新日期：1999-08-01 00:00:00

abstract：:One-dimensional scans of gamma-ray emitting contaminants were conducted on lysimeters from the RadFLEX facility at the Savannah River Nationals Laboratory (SRNL). The lysimeters each contained a contamination source that was buried in SRNL soil. A source consisted of Cs, Co, Ba, and Eu incorporated either into a solid...

journal_title：Health physics

authors： Erdmann BJ,Powell BA,Kaplan DI,DeVol TA

更新日期：2018-05-01 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：: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 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