Atmospheric 222Rn in tourist caves of Slovenia, Yugoslavia.

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：:This paper details the construction of a 137Cs gamma calibration curve that has been established for dicentric assay and the testing and validation of the curve through biological dosimetry in three situations of suspected workplace overexposure that arose accidentally or through negligence or lack of appropriate safe...

journal_title：Health physics

authors： Hadjidekova V,Hristova R,Ainsbury EA,Atanasova P,Popova L,Staynova A

更新日期：2010-02-01 00:00:00

abstract：:Spot urine samples are often taken for emergency radiobioassay to provide a quick dose assessment for contaminated individuals. The subsequent dosimetric analysis requires a urinary output normalization method to adjust spot sampling to daily urine excretion. A rapid specific gravity method that was developed for 24-h...

journal_title：Health physics

authors： Dai X,Kutschke K,Priest N

更新日期：2011-08-01 00:00:00

abstract：:In the last 50 years several radiation accidents occurred in which industrial radiographers and others suffered severe radiation injuries from inadvertent contact with radiation sources. Such accidents involving acute localized injuries are characterized by a severe initial reaction progressing through erythema to ski...

journal_title：Health physics

authors： Lefaix JL,Daburon F

更新日期：1998-10-01 00:00:00

abstract：:Environmental releases of tritium oxide at a number of Department of Energy nuclear weapons facilities contribute to a significant portion of environmental dose. Several conversion factors are utilized in the estimation of human impact from these releases, e.g., dispersion coefficients, consumption rates, uptake facto...

journal_title：Health physics

authors： Hamby DM

更新日期：1999-09-01 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：: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 National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL) in California is currently in operation with the goal to demonstrate fusion energy gain for the first time in the laboratory-also referred to as "ignition." Based on these demonstration experiments, the Laser Inertial Fusion Ener...

journal_title：Health physics

authors： Reyes S,Dunne M,Kramer K,Anklam T,Havstad M,Mazuecos AL,Miles R,Martinez-Frias J,Deri B

更新日期：2013-06-01 00:00:00

abstract：:This paper provides a review and reanalysis of data relating to gastrointestinal (GI) uptake of uranium in humans. Estimates of GI uptake of uranium in adult humans have been derived from results of three controlled experimental studies involving short-term oral intake of an elevated quantity of uranium in fluids, fro...

journal_title：Health physics

authors： Leggett RW,Harrison JD

更新日期：1995-04-01 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：: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：:The use of radiation has a substantial beneficial impact, particularly in the areas of medicine, energy production, basic science research, and industrial applications. Radiation protection knowledge and experience are required for acquiring and implementing scientific knowledge to protect workers, members of the publ...

journal_title：Health physics

authors： Hricak H,Dauer LT

更新日期：2017-02-01 00:00:00

abstract：:Fetal radiation dose estimates were calculated for women who received oral administrations of 59Fe at Vanderbilt University in the 1940's. A similar dosimetry analysis was performed by Dyer and Brill in 1972; the availability of recently developed physical models of the pregnant female at different stages of gestation...

journal_title：Health physics

authors： Stabin MG,Stubbs JB,Russell JR

更新日期：1997-05-01 00:00:00

abstract：:Radiopharmaceutical therapy involves the use of radionuclides that are either conjugated to tumor-targeting agents (e.g., nanoscale constructs, antibodies, peptides, and small molecules) or that concentrate in tumors through natural physiological mechanisms that occur predominantly in neoplastic cells. In the latter c...

journal_title：Health physics

authors： Sgouros G

更新日期：2019-02-01 00:00:00

abstract：:In the summers of 1990 and 1991, outdoor 222Rn detectors were installed for 3 mo in 78 communities across Canada. The 1990 measurements showed large regional variations with the average outdoor levels for the provinces of Manitoba (59 Bq m-3) and Saskatchewan (61 Bq m-3) exceeding the average indoor levels of 55 Bq m-...

journal_title：Health physics

authors： Grasty RL

更新日期：1994-02-01 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 destruction of the Unit 4 reactor at the Chernobyl Nuclear Power Plant resulted in the generation of radioactive contamination and radioactive waste at the site and in the surrounding area (referred to as the Exclusion Zone). In the course of remediation activities, large volumes of radioactive waste were generate...

journal_title：Health physics

authors： Napier BA,Schmieman EA,Voitsekovitch O

更新日期：2007-11-01 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 escaping radioactivity from Greek coal power plants (CPP) was studied. For the case studied the radioactivity is due to the uranium series. The major part (99%) escapes as very fine particles, while the rest is fly ash. The total escaping 226Ra activity is of the order of 40 Ci/yr. The particulate dispersion of fl...

journal_title：Health physics

authors： Papastefanou C,Charalambous S

更新日期：1984-02-01 00:00:00

abstract：:Power-frequency (50/60 Hz) magnetic fields produced by electric blankets are estimated from data on blanket design using a three-dimensional computer model. Maximum, minimum, and volume-average fields within human forms are presented as a function of blanket type and a number of geometric factors including body size, ...

journal_title：Health physics

authors： Florig HK,Hoburg JF

更新日期：1990-04-01 00:00:00

abstract：:An investigation of the performance of a diffusion barrier, charcoal-based 222Rn monitor under several artificial environmental conditions showed that both temperature and relative humidity levels affect 222Rn uptake. A physical model was developed adequately describing the temperature effects, while an empirical mode...

journal_title：Health physics

authors： Pojer PM,Peggie JR,O'Brien RS,Solomon SB,Wise KN

更新日期：1990-01-01 00:00:00

abstract：:The thermoluminescent (TL) response to ultraviolet irradiation of CaF2:Tm phosphor is affected by pre-irradiation high-temperature treatment. The experimental results indicate that the maximum intrinsic TL output is about 2000 times higher for 1000 degrees C treatment than when not treated. TL stability for this phosp...

journal_title：Health physics

authors： Li SH,Hsu PC,Weng PS

更新日期：1991-12-01 00:00:00

abstract：:For emergency preparedness and response with respect to nuclear power plant accidents, the concept of Emergency Care Centers has been developed in Germany. This setup aims at monitoring contamination, to decontaminate if needed, assess the dose, and perform an initial medical evaluation of people who might have been a...

journal_title：Health physics

authors： Miska H

更新日期：2012-08-01 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：:A rugged resin concentration method followed by gamma counting was developed for measuring 226Ra and 228Ra in drinking water. Using typical distribution system pressure, 310 kPa (45 psig), radium in a 20-L sample was concentrated 100-fold onto 200 mL of ion-exchange resin beads that were then sealed in a glass jar for...

journal_title：Health physics

authors： Clifford DA,Higgins EA

更新日期：1992-05-01 00:00:00

abstract：:Radiation sickness is challenging to diagnose, and the diagnosis is often based on nonclinical data. In accidents where patients are not aware of their exposure to radiation (so-called "occult exposures"), a correct diagnosis can take weeks or months. The purpose of this study is to review the time to diagnosis of rad...

journal_title：Health physics

authors： Kunkler J,Adams TG,Manger M,Casagrande R

更新日期：2018-08-01 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：: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：:We have simulated the head geometry of a Varian Clinac 2100C/2300C medical accelerator in a Monte Carlo calculation to produce photoneutrons and transport them through the head shielding into a typical therapy room (modeled by a test cell at Varian Associates). The fast neutron leakage fluence and energy spectra have ...

journal_title：Health physics

authors： Kase KR,Mao XS,Nelson WR,Liu JC,Kleck JH,Elsalim M

更新日期：1998-01-01 00:00:00

abstract：:In nuclear accident consequence assessment, dose contributions from radionuclide deposition on the human body have in the past generally been either ignored or estimated on the basis of rather simple models. Recent experimental work has improved the state of knowledge of relevant processes and parameter ranges. The re...

journal_title：Health physics

authors： Andersson KG,Fogh CL,Byrne MA,Roed J,Goddard AJ,Hotchkiss SA

更新日期：2002-02-01 00:00:00