A Simple Method to Screen for Radiostrontium in Water by Ion Exchange Chromatography.

abstract：:Proton therapy has the physical advantage of a Bragg peak that can provide a better dose distribution than conventional x-ray therapy. However, radiation exposure of normal tissues cannot be ignored because it is likely to increase the risk of secondary cancer. Evaluating secondary neutrons generated by the interactio...

journal_title：Health physics

authors： Matsumoto S,Koba Y,Kohno R,Lee C,Bolch WE,Kai M

更新日期：2016-04-01 00:00:00

abstract：:In situ recovery or in situ leach (ISR/ISL) uranium facilities, also referred to in the past as "uranium solution mining" have operated since the late 1960s in the US and in recent years have accounted for over 70% of US production and, internationally, approximately half of worldwide uranium supplies. Note that throu...

journal_title：Health physics

authors： Brown SH

更新日期：2019-07-01 00:00:00

abstract：:A group of workers internally contaminated with Am have been followed for about 12 years. The source of contamination was AmO2 powder used for production of AmBe neutron sources and other applications. The production of some radionuclide sources included chemical treatment of the original material, which transformed t...

journal_title：Health physics

authors： Malátová I,Vrba T,Becková V,Pospísilová H

更新日期：2010-10-01 00:00:00

abstract：:More than 150 data sets giving time-dependent concentrations of 131I and 137Cs in feed and milk of cows after the Chernobyl accident are evaluated using a minimal compartmental modeling approach. Transfer of cesium via the grass-cow-milk pathway is adequately described by a three-compartmental model. No unique model r...

journal_title：Health physics

authors： Kirchner G

更新日期：1994-06-01 00:00:00

abstract：:Neyman-Pearson principles are briefly discussed and 95% confidence intervals of the form [0, ##.##] are presented. Use is made of the fact that the probability of the difference of two random variables, each with a Poisson distribution, can be expressed in terms of modified Bessel functions of integral order and eleme...

journal_title：Health physics

authors： Potter WE

更新日期：1999-11-01 00:00:00

abstract：:Studies of the spatial and temporal distribution of microscopic radiation doses lead to potentially important questions regarding conventional approaches to radiation protection. The short ranges of alpha-particle and Auger-electron emissions from radionuclides lead to uncertainties in assessing their hazards. The con...

journal_title：Health physics

authors： Goodhead DT

更新日期：1988-08-01 00:00:00

abstract：:This paper describes an investigation into the distribution of radiation doses to workers, undertaken at the request of ICRP Committee 4. Three main questions are considered. Firstly, the distribution of annual doses to workers is described. Doses are generally well below the ICRP dose limits and most are below 15 mSv...

journal_title：Health physics

authors： Johnston PD,Brenot J,Kendall GM

更新日期：1986-11-01 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：:The electret passive environmental 222Rn monitor (E-PERM) is an extension of electret dosimeters used for measurement of x and gamma radiation. An E-PERM consists of a small cup or canister, having an electret at the bottom, and a filtered inlet at the top. The 222Rn gas entering through the filter and the decay produ...

journal_title：Health physics

authors： Kotrappa P,Dempsey JC,Hickey JR,Stieff LR

更新日期：1988-01-01 00:00:00

abstract：:Fifty-one soil samples were collected to a depth of 30 cm in the central and eastern region of the Brazilian state of Rio Grande do Norte. Concentrations of background radionuclides in soil samples were determined by gamma ray spectrometry with an HPGe detector. The average concentrations of 226Ra, 232Th, and 40K in t...

journal_title：Health physics

authors： Malanca A,Pessina V,Dallara G

更新日期：1993-09-01 00:00:00

abstract：:Beagle dogs were given subcutaneous implants of plutonium in their forepaws to mimic hand wounds received by workers accidentally contaminated with plutonium. Ten dogs received 9.46 +/- 0.43 mu Ci of plutonium oxide, and eight dogs received 1.25 +/- 0.60 mu Ci of plutonium nitrate. Surviving dogs were sacrificed at 8 ...

journal_title：Health physics

authors： Dagle GE,Bristline RW,Lebel JL,Watters RL

更新日期：1984-07-01 00:00:00

abstract：:The concentrations and the organ distribution patterns of 228Th, 230Th and 232Th in two 9-y-old dogs of our beagle colony were determined. The dogs were exposed only to background environmental levels of Th isotopes through ingestion (food and water) and inhalation as are humans. The organ distribution patterns of the...

journal_title：Health physics

authors： Singh NP,Zimmerman CJ,Taylor GN,Wrenn ME

更新日期：1988-03-01 00:00:00

abstract：:The Federal Radiological Emergency Response Plan (FRERP) directs the Department of Energy (DOE) to maintain a viable, timely, and fully documented response option capable of supporting the responsible Lead Federal Agency in the event of a radiological emergency impacting any state or United States territory (e.g., CON...

journal_title：Health physics

authors： Tighe RJ,Riland CA,Hopkins RC

更新日期：2000-02-01 00:00:00

abstract：:With the aim of developing genetic tests for elevated and reduced radiation sensitivity, the authors studied the correlations between various genotypes and frequencies of spontaneous and radiation-induced chromosome aberrations in human lymphocytes. Cytogenetic analysis and genotyping (19 sites of detoxification and D...

journal_title：Health physics

authors： Salnikova L,Chumachenko A,Belopolskaya O,Rubanovich A

更新日期：2012-07-01 00:00:00

abstract：:The statistical distribution of 222Rn measurements from basements and first floors of homes in northeastern Pennsylvania was investigated. The gamma distribution was statistically significantly superior to the normal distribution (p less than 0.005) in describing the frequency distribution of the logarithm of observed...

journal_title：Health physics

authors： Janssen I,Stebbings JH

更新日期：1992-08-01 00:00:00

abstract：:Thorium lung burdens have been measured in workers in the dry separation plants operated by the mineral sands industry in Western Australia. The data have been compared with historical employment records of the worker's exposure to thorium-bearing airborne dusts in order to assess the reliability of personal air sampl...

journal_title：Health physics

authors： Terry KW,Hewson GS

更新日期：1995-08-01 00:00:00

abstract：:A case of plutonium deposition in man within the range of 190 Bq by inhalation from about 12 yr ago is reported. An estimate of systemic burden was made based on analyses of urine and faeces and the models of Langham, Beach/Dolphin, and Durbin while the individual was alive. This estimate was compared with autopsy fin...

journal_title：Health physics

authors： Ohlenschlaeger L,Schieferdecker H,Schmidt-Martin W

更新日期：1984-04-01 00:00:00

abstract：:Mechanic workers are exposed to exhaust fumes when controlling vehicle engines in motion inside repair shops. To assess radiation doses due to radon short-lived progeny from the inhalation of exhaust fumes by mechanic workers, concentrations of these radionuclides were measured in petrol (gasoline) and gas-oil exhaust...

journal_title：Health physics

authors： Misdaq MA,Chaouqi A,Ouguidi J,Touti R,Mortassim A

更新日期：2015-06-01 00:00:00

abstract：:Depleted uranium (DU) munitions were initially used by the United States (U.S.) military during the first Persian Gulf War in 1991 in order to penetrate heavily armored vehicles. However, as a result of friendly fire, several U.S. military personnel received intakes from DU munitions. One of the ongoing concerns for t...

journal_title：Health physics

authors： Walkingstick MT,Krage ES,Brey RR

更新日期：2018-03-01 00:00:00

abstract：:Lifetime follow-up of USTUR Case 246 demonstrated the lack of severe biological effects resulting from his exposure to 241Am. Deterministic effects observed were limited to hematological changes, including lymphopenia and thrombocytopenia. These hematological changes were consistent with those observed in experimental...

journal_title：Health physics

authors： Filipy RE,Toohey RE,Kathren RL,Dietert SE

更新日期：1995-09-01 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：:Determining the consumption of milk contaminated with 131I, resulting from atmospheric nuclear weapons tests conducted at the Nevada Test Site, by the United States population during the 1950s constitutes one part of the methodology used by the National Cancer Institute to assess radiation exposures to Americans. In o...

journal_title：Health physics

authors： Dreicer M,Bouville A,Wachholz BW

更新日期：1990-11-01 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：:A model is presented to analyze the retention of Pu in the major deposition organs of the beagle dog and predict the dynamic behavior of skeletal labels. The kinetic part describing the gross organ distribution was represented by a compartment model. A fit to empirical retention equations of liver and skeleton yielded...

journal_title：Health physics

authors： Polig E

更新日期：1989-09-01 00:00:00

abstract：:Discharges of radioactive materials from the nuclear fuel reprocessing plant at Sellafield in the United Kingdom give rise to 137Cs and 134Cs in fish caught in the Irish Sea. Measurements made on fish catches landed in the Irish Republic show average activities of 68 and 3 Bq/kg (wet) of 137Cs and 134Cs, respectively....

journal_title：Health physics

authors： McAulay IR,Doyle C

更新日期：1985-03-01 00:00:00

abstract：:Past computer solutions for confidence intervals in paired counting are extended to the case where the ratio of the sample count time to the blank count time is taken to be an integer, IRR. Previously, confidence intervals have been named Neyman-Pearson confidence intervals; more correctly they should have been named ...

journal_title：Health physics

authors： Potter WE,Strzelczyk JJ

更新日期：2011-05-01 00:00:00

abstract：:Everyone will agree that specialized computer programs have done away with the many tedious tasks associated with manually keeping track of radioisotopes. Enhanced electronic programs have virtually cut the time of managing radioisotopes. Agriculture and Agri-Food, Canada's (AAFC) program for the management of radiois...

journal_title：Health physics

authors： Ritchot N,Santary W

更新日期：2008-05-01 00:00:00

abstract：:More than 380 Chinese adults of both sexes were studied for their total body K and 40K using the National Tsing Hua University whole-body counter. The K values were found to have an average of 1.75 +/- 0.4 g K kg-1 body weight for males and 1.41 +/- 0.1 g K kg-1 body weight for females. The average K value for both se...

journal_title：Health physics

authors： Lan CY,Weng PS

更新日期：1989-11-01 00:00:00

abstract：:Because of fast growing medical radiation use, estimating possible late health effects of radiation, including potential cancer risk, is an issue of substantial interest. Since physicians make the decision to order or perform a radiological procedure, it is very important to provide them with objective information abo...

journal_title：Health physics

authors： Ivanov VK,Tsyb AF,Mettler FA,Menyaylo AN,Kashcheev VV

更新日期：2012-12-01 00:00:00

abstract：:The intestinal absorption of 99mTc given as pertechnetate (TcO4-) was studied in female goats and swine. In goats given TcO4- orally, only a small fraction of the given radioactivity was found in milk (x = 0.1% of dose) and urine (x = 1.2% of dose). These figures were not substantially changed by pre-treatment with I....

journal_title：Health physics

authors： Jones BE

更新日期：1989-08-01 00:00:00