Biokinetics and dosimetry of inhaled Cm aerosols in beagles: effect of aerosol chemical form.

abstract：:Uranium concentration in drinking water samples collected from some areas of Punjab and Himachal Pradesh has been measured using a laser induced fluorimetry technique. The sources of water comprise hand pumps and tube wells. Uranium concentration in the water samples from Punjab varies from 1.39 +/- 0.16 to 98.25 +/- ...

journal_title：Health physics

authors： Rani A,Singh S

更新日期：2006-08-01 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：:Panasonic UD-801 thermoluminescent dosimeters ( TLDs ) containing two calcium sulfate phosphors were tested under Performance Specification 3.1 established by the American National Standard Institute ( ANSI75 ) and in the U.S. Nuclear Regulatory Commission's Regulatory Guide 4.13 ( NRC77 ). The specific qualifying tes...

journal_title：Health physics

authors： Toke LF,Carson BH,Baker GG,McBride MH,Plato PA,Miklos JA

更新日期：1984-05-01 00:00:00

abstract：:The natural radioactivity in some rock samples in Ikogosi-Ekiti, Southwestern Nigeria, has been measured using a very sensitive gamma spectroscopic system consisting of a 76 mm x 76 mm NaI(TI) scintillation detector system coupled to a versatile Canberra Series 10 plus multichannel analyzer. The average concentrations...

journal_title：Health physics

authors： Ajayi OS

更新日期：2000-08-01 00:00:00

abstract：:There is still substantial confusion in the radiation effects community about the inherent limitations of ecologic analysis. As a result, inordinate attention has been given to the discrepant results of Cohen, in which a negative estimate is observed for the regression of county mortality rates for lung cancer on esti...

journal_title：Health physics

authors： Lubin JH

更新日期：1998-07-01 00:00:00

abstract：:An addition has been made to an existing software program for calculating shielding thicknesses of barriers for megavoltage radiation therapy beams. This addition calculates the shielding thicknesses required for the roof of a single-story building when adjacent, multi-level buildings are occupied. ...

journal_title：Health physics

authors： Biggs PJ

更新日期：1998-10-01 00:00:00

abstract：:Low-level radioactive waste containing liquid scintillation fluid and known amounts of 14C and 3H has been incinerated in a modified pathological incinerator with the incinerator effluent, refractory surface and ash being monitored. The study relates the activity monitored to that incinerated and discusses how this re...

journal_title：Health physics

authors： Hamrick PE,Knapp SJ,Parker MG,Watson JE Jr

更新日期：1986-10-01 00:00:00

abstract：:A study on absorption of radon by different edible oils of plant origins produced and used in India was conducted in order to identify efficient radon-absorbing oils. A comparative study of radon absorption by edible oils of India with that of olive oil, which is known as a good absorber of radon, was also carried out...

journal_title：Health physics

authors： Karunakara N,Al-Azmi D

更新日期：2010-04-01 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：: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：:Operators of industrial high-frequency dielectric heaters are exposed to electromagnetic fields that are high enough to significantly increase body temperature. The assessment of exposure based on the measurement of external field strengths is, however, inaccurate due to the non-uniformity of the fields. This paper pr...

journal_title：Health physics

authors： Kännälä S,Puranen L,Sihvonen AP,Jokela K

更新日期：2008-02-01 00:00:00

abstract：:The role of environmental radiation in the etiology of birth defects, stillbirths, and other adverse outcomes of pregnancy was evaluated for 13,329 Navajos born at the Public Health Service/Indian Health Service Hospital in the Shiprock, NM, uranium mining area (1964-1981). More than 320 kinds of defective congenital ...

journal_title：Health physics

authors： Shields LM,Wiese WH,Skipper BJ,Charley B,Benally L

更新日期：1992-11-01 00:00:00

abstract：:High-order decay equations are often difficult to study without significant care taken with variables and assumptions. As parent and progeny activities evolve over time, the effects of uncertainties and approximations confound the quality and interpretation of results. Of particular concern is the situation when decay...

journal_title：Health physics

authors： Wilson CA 4th,Hendrickson KR,Hamideh AM,Matthews KL 2nd,Wang WH

更新日期：2018-12-01 00:00:00

abstract：:Monte Carlo simulation techniques using a Monte Carlo N-Particle code (MCNP5) analyzed six Source Production & Equipment Co., Inc., Se industrial radiography sources to determine an appropriate air kerma rate constant for Se, factoring in source encapsulation and compared to a theoretical approximation. Based on this ...

journal_title：Health physics

authors： H Currier B,Munro JJ 3rd,Medich DC

更新日期：2013-05-01 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：:Ecological and evolutionary considerations suggest that radiation hormesis is made up of two underlying components. The first (a) is background radiation hormesis based upon the background exposure to which all organisms are subjected throughout evolutionary time. The second and much larger component (b) is stress-der...

journal_title：Health physics

authors： Parsons PA

更新日期：2002-04-01 00:00:00

abstract：:Eleven years after the accidental loss of nuclear weapons in 1968, the fourth scientific expedition to Thule occurred. The estimated inventory of 1 TBq 239,240Pu in the marine sediments was unchanged when compared with the estimate based on the 1974 data. Plutonium from the accident had moved further away from the imp...

journal_title：Health physics

authors： Aarkrog A,Dahlgaard H,Nilsson K,Holm E

更新日期：1984-01-01 00:00:00

abstract：:The present study was undertaken to assess the contribution of phosphate feed supplements to the radiation exposure of the population in Israel. The phosphates usually contain appreciable quantities of U and its daughters and the actual exposure of human consumers depends, to a very large extent, on the degree of equi...

journal_title：Health physics

authors： Izak-Biran T,Schlesinger T,Weingarten R,Even O,Shamai Y,Israeli M

更新日期：1989-03-01 00:00:00

abstract：:The radiological consequences of using fly ash as a component of cement are discussed. Measurements of the activity concentrations of the fly ash and cement are reported together with measurements of emanation coefficients and exhalation rates. The radon-exhalation rate was found to be significantly lower in concrete ...

journal_title：Health physics

authors： Stranden E

更新日期：1983-02-01 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 University of Cincinnati has reproduced the original formulation for the Livermore Thoracic Phantom lungs using contemporary materials and has adopted the linear attenuation coefficient as the primary quality assurance parameter for evaluating the performance capabilities of these new lung phantoms. The Livermore ...

journal_title：Health physics

authors： Spitz H,Glover S,Liu N,Smith B,Hickman D,Kruchten D,Anderson L

更新日期：1994-07-01 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：:Self-evacuation by a private vehicle is one of the most commonly used methods of public evacuation in the case of a nuclear accident. The aim of this paper is to evaluate the dose-reduction effects of vehicles. To achieve this aim, a model for calculating the dose reduction factor was developed based on the actual sha...

journal_title：Health physics

authors： Takahara S,Watanabe M,Hirouchi J,Iijima M,Munakata M

更新日期：2018-01-01 00:00:00

abstract：:In this work, the dose to the members of the public from two different 131I thyroid ablation patient groups (1.85 GBq and 3.7 GBq), whose a priori programmed hospitalization time is 48 h, is compared. The possibility of allocating half of the hospitalization time (24 h) for patients treated with 1.85 GBq is evaluated,...

journal_title：Health physics

authors： dos Santos JA,Antunes VC,Duarte LH

更新日期：2015-09-01 00:00:00

abstract：:The new dose limits recently adopted in Canada (and elsewhere in the world) have made it more difficult to detect some radionuclides by in vivo counting at the average dose limit of 20 mSv. This is particularly true for natural uranium. Two techniques have been developed by the Human Monitoring Laboratory to reduce th...

journal_title：Health physics

authors： Kramer GH,Hauck BM,Allen SA,Dantas BM,Dantas AL,Azeredo AM

更新日期：2003-08-01 00:00:00

abstract：:The contributions of tritiated water (3HHO) and dietary tritiated amino acids to the steady-state specific activities of tissue water tritium and organically bound tritium in mice were essentially independent and additive. Following exposure (56 d), organically bound tritium clearance was resolved into two distinct co...

journal_title：Health physics

authors： Rodgers DW

更新日期：1992-09-01 00:00:00

abstract：:The security of medical radioactive sources, both open and sealed, is an important consideration for reducing the risk of an intentional or inadvertent additional radiation dose to the public, according to the principle of keeping any additional radiation dose as low as reasonably achievable. The detection and followi...

journal_title：Health physics

authors： Kroeger EA,Rupp A,Gregor J

更新日期：2020-07-01 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：: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：:ISABELLE is a high-intensity 400-GeV proton-storage ring under construction at Brookhaven National Laboratory (BNL). The radiation-protection problems encountered in its design are in many ways similar to those at high-energy fixed-target facilities: both the laboratory personnel nearby and the public several kilomete...

journal_title：Health physics

authors： Gollon PJ,Casey WR

更新日期：1984-01-01 00:00:00