Performance of a diffusion barrier charcoal adsorption 222Rn monitor under conditions of varying humidity and temperature.

abstract：:Following the attacks of 11 September 2001, emergency preparedness within the U.S. Department of Health and Human Services, as well as at the Department of Defense and other federal agencies, received higher visibility, new mandates and increased funding. Emergency deployment teams increased the frequency of drills to...

journal_title：Health physics

authors： Grace MB,Cliffer KD,Moyer BR,Coleman CN,Prasher JM,Hatchett R,Mercier J,Manning RG,Bader JL,Disbrow GL,Kovacs GR

更新日期：2011-09-01 00:00:00

abstract：:Acute radiation syndrome represents the clinical response of radiation-sensitive key tissues (i.e., hematopoietic, gastrointestinal and neurovascular) following exposure to high doses of ionizing radiation. In this context, the hematopoietic syndrome remains the first therapeutic challenge. Today, identifying new drug...

journal_title：Health physics

authors： Drouet M,Hérodin F

更新日期：2014-06-01 00:00:00

abstract：:An attempt was made to test the hypothesis (McLeod et al. 1987; Smith et al. 1987) that a certain combination of direct current and alternating current magnetic field exposures at room temperature results in an increase in motility of a marine diatom (Amphora coffeaeformis) to a maximum value. Diatom motility increase...

journal_title：Health physics

authors： Prasad AV,Miller MW,Cox C,Carstensen EL,Hoops H,Brayman AA

更新日期：1994-03-01 00:00:00

abstract：:Several radiation dose- and time-dependent tissue sequelae develop following acute high-dose radiation exposure. One of the recognized delayed effects of such exposures is lung injury, characterized by respiratory failure as a result of pneumonitis that may subsequently develop into lung fibrosis. Since this pulmonary...

journal_title：Health physics

authors： Garofalo M,Bennett A,Farese AM,Harper J,Ward A,Taylor-Howell C,Cui W,Gibbs A,Lasio G,Jackson W 3rd,MacVittie TJ

更新日期：2014-01-01 00:00:00

abstract：:This article presents an optimization study for radiological protection in a U mine. The mathematical model of the alpha contamination associated with short-lived Rn daughters allows the comparison of various protection strategies through a cost-effectiveness analysis. Determining the optimal protection strategy is ca...

journal_title：Health physics

authors： Lombard J,Oudiz A,Zettwoog P

更新日期：1986-04-01 00:00:00

abstract：:Conversion factors for the dose rate 1 m above the ground level from the measured activities for different gamma-ray emitters in soil are calculated using the Monte Carlo method. The calculations are based on the GEANT system developed at CERN, Geneva. Results for the uniform and surface distribution of the emitters i...

journal_title：Health physics

authors： Likar A,Vidmar T,Pucelj B

更新日期：1998-08-01 00:00:00

abstract：:Röntgen's description of his discovery of x rays was convincing and comprehensive. The response of the scientific community and public was immediate and intense. In contrast, the discovery of radioactivity was a muddled affair that excited little interest. While it would prove far more revolutionary than that of x ray...

journal_title：Health physics

authors： Frame PW

更新日期：1996-05-01 00:00:00

abstract：:The longterm behavior of 137Cs in milk of a Bavarian farm (farm A) deposited as a consequence of the Chernobyl accident has been followed from April 1986 until August 1994. On the basis of activity measurements in milk and feed, transfer coefficients for the different seasons have been estimated in order to see any ch...

journal_title：Health physics

authors： Voigt G,Rauch F,Paretzke HG

更新日期：1996-09-01 00:00:00

abstract：:The present study aimed to evaluate the effects of high background radiation (HBR) on mortality. A cohort of 31,604 men and women aged 30-74 y living in the study area in Guangdong Province, China, was followed during the period 1979-1998. The information on deaths and migrations of cohort members was collected by vis...

journal_title：Health physics

authors： Tao Z,Akiba S,Zha Y,Sun Q,Zou J,Li J,Liu Y,Yuan Y,Tokonami S,Morishoma H,Koga T,Nakamura S,Sugahara T,Wei L

更新日期：2012-02-01 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：:Dissolution characteristics of mixed-oxide nuclear fuels are important considerations for prediction of biological behavior of inhaled particles. Four representative industrial mixed-oxide powders were obtained from fuel fabrication enclosures. Studies of the dissolution of Pu, Am and U from aerosol particles of these...

journal_title：Health physics

authors： Eidson AF,Mewhinney JA

更新日期：1983-12-01 00:00:00

abstract：:Experimental measurements of velocity and tracer gas concentration are taken in a straight tube to evaluate the effectiveness of mixing in achieving conditions as required by ANSI N13.1-1999 for single point extractive sampling from stacks and ducts of nuclear facilities. Mixing is evaluated for inlet turbulent intens...

journal_title：Health physics

authors： Anand M,McFarland AR,Rajagopal KR

更新日期：2003-01-01 00:00:00

abstract：:In 1959, the Test Manager's Committee to Establish Fallout Doses calculated estimated external gamma exposure at populated locations based upon measurements of external gamma-exposure rate. Using these calculations and estimates of population, we have tabulated the collective estimated external gamma exposures for com...

journal_title：Health physics

authors： Anspaugh LR,Church BW

更新日期：1986-07-01 00:00:00

abstract：:Medical health physics is the profession dedicated to the protection of healthcare providers, members of the public, and patients from unwarranted radiation exposure. Medical health physicists must be knowledgeable in the principles of health physics and in the applications of radiation in medicine. Advances in medica...

journal_title：Health physics

authors： Vetter RJ

更新日期：2004-05-01 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：:Radon exposure is associated with an increased incidence of lung cancer, and elevated levels may be found in as many as 1 out of 15 homes. The U.S. EPA recommends testing homes for radon and mitigating over the advisory level of 4 picocuries per liter (4 pCi L(-1), or 148 Bq m(-3)). A sample population from a list of ...

journal_title：Health physics

authors： Riesenfeld EP,Marcy TW,Reinier K,Mongeon JA,Trumbo CW,Wemple BE,Kaminsky DA

更新日期：2007-05-01 00:00:00

abstract：:Radiofrequency-induced hyperthermia has recently gained acceptance in cancer therapy. One of a few commercially available systems is the Magnetrode, a device operating at 13.56 MHz with an output power up to 1000 W. Heating of the prescribed part of the patient's body is accomplished by one of the coil electrodes. To ...

journal_title：Health physics

authors： Stuchly MA,Repacholi MH,Lecuyer DW

更新日期：1983-07-01 00:00:00

abstract：:This paper describes a program of laboratory and field studies undertaken to assess the health impact of radioactive debris from the re-entry of the Soviety nuclear-powered satellite, Cosmos 954, on 24 January 1978. It was estimated that about one-quarter of the reactor core descended over Canada's Northwest Territori...

journal_title：Health physics

authors： Tracy BL,Prantl FA,Quinn JM

更新日期：1984-08-01 00:00:00

abstract：:This study was done to provide data useful for predicting the deposition, retention and radiation dose patterns for humans who might be exposed to an aerosol containing 106RuO4 and respirable particles. Ruthenium-106 tetroxide was introduced into air containing inert particles. The inert particles were monodisperse. 0...

journal_title：Health physics

authors： Snipes MB,Kanapilly GM

更新日期：1983-04-01 00:00:00

abstract：:Many reports discuss plant growth stimulation by exposure of seeds or plants to low doses of ionizing radiation. The reported effects include increased height, weight, growth rate, flowering and yield. The magnitude of the effect(s) is usually small, being about 10% of control values; and the effects often are not rep...

journal_title：Health physics

authors： Miller MW,Miller WM

更新日期：1987-05-01 00:00:00

abstract：:Field surveys were carried out at sixteen pulp and paper mills in the United States--seven kraft process, two sulfite process, and seven recycling process mills--for the presence of naturally occurring radioactive material (NORM) in precipitates and scales. NORM was detected at three of the kraft mills, one sulfite mi...

journal_title：Health physics

authors： Fisher RP,Easty DB

更新日期：2003-04-01 00:00:00

abstract：:The sources of outdoor and indoor atmospheric radon are examined. The variation of outdoor atmospheric radon with time of day, time of year, altitude and geographic location is quantitatively assessed. Average values of outdoor atmospheric radon concentrations are examined and it is estimated that the mean value for n...

journal_title：Health physics

authors： Gesell TF

更新日期：1983-08-01 00:00:00

abstract：:The objective of the present study was to assess the lung cancer risk induced by exposures to radon progeny of people living in some areas of Transylvania, Romania. Indoor radon concentrations were measured in 667 dwellings of Stei area, Cluj, Bistrita-Nasaud, Sibiu, and Alba counties. Measurements were performed usin...

journal_title：Health physics

authors： Truta-Popa LA,Dinu A,Dicu T,Szacsvai K,Cosma C,Hofmann W

更新日期：2010-09-01 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：:During the winter months of 1992/93 and 1993/94, instantaneous indoor radon concentrations and gamma dose rates were measured in 890 schools in Slovenia attended in total by about 280,000 pupils. Under "closed conditions," the room to be surveyed was closed for more than 12 h prior to sampling, the air was sampled int...

journal_title：Health physics

authors： Vaupotic J,Sikovec M,Kobal I

更新日期：2000-05-01 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：:The real-time radiation monitoring system (RMS) in the Synchrotron Radiation Research Center (SRRC) has been upgraded significantly during the past years. The new framework of the RMS is built on the popular network technology, including Ethernet hardware connections and Web-based software interfaces. It features virt...

journal_title：Health physics

authors： Sheu RJ,Wang JP,Chen CR,Liu J,Chang FD,Jiang SH

更新日期：2003-10-01 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：:Absorbed dose and dose equivalent conversion coefficients are routinely used in personnel dosimetry programs. These conversion coefficients can be applied to particle fluences or to measured air kerma values to determine appropriate operational monitoring quantities such as the ambient dose equivalent or personal dose...

journal_title：Health physics

authors： Veinot KG,Hertel NE

更新日期：2007-02-01 00:00:00

abstract：:The goal of the laser safety officer and any laser safety program is to prevent a laser accident from occurring, in particular, one that causes an injury to a person's eyes. Most laser safety courses "in-house commercial" discuss laser accidents, causes, and types of injury. Many do not address appropriate actions to ...

journal_title：Health physics

authors： Barat K

更新日期：2003-05-01 00:00:00