Effective dose calculations in conventional diagnostic X-ray examinations for adult and paediatric patients in a large Italian hospital.

abstract：:Theoretical models to calculate the indoor gamma and radon doses are reviewed, refined and applied. The model for gamma doses is built based on the relative effects of the different room elements that control the amount of radiation. The relative doses are calculated by the MCNP5 simulation software. The gamma sources...

journal_title：Radiation protection dosimetry

authors： Orabi M

更新日期：2019-12-31 00:00:00

abstract：:Analytical geometric models for the bones of the knee region have been developed. A survey was done on real pieces to obtain the dimensions of the geometric sections used in each model. The dependence of the section dimensions on the bone length and the estimated dimensions of the bones for a 1.70 m tall person are pr...

journal_title：Radiation protection dosimetry

authors： Venturini L,Sordi GM,Fernandes F

更新日期：2008-01-01 00:00:00

abstract：:In this study, microdosimetric energy distributions of secondary charged particles from the (10)B(n,α)(7)Li reaction in boron-neutron capture therapy (BNCT) field were calculated using the Particle and Heavy Ion Transport code System (PHITS). The PHITS simulation was performed to reproduce the geometrical set-up of an...

journal_title：Radiation protection dosimetry

authors： Baba H,Onizuka Y,Nakao M,Fukahori M,Sato T,Sakurai Y,Tanaka H,Endo S

更新日期：2011-02-01 00:00:00

abstract：:To test the blood tritium level as an estimate of free water tritium (FWT) and organically bound tritium (OBT) in human soft tissues, a tritiated amino acid mixture (TAA) and tritiated water (HTO) were injected or orally administered to mice. Relatively high tritium retention in the blood was found after TAA injection...

journal_title：Radiation protection dosimetry

authors： Saito M

更新日期：2003-01-01 00:00:00

abstract：:In this paper, the results aimed at assessing the performance of two varieties of LiF detectors (LiF:Mg,Ti and LiF:Mg,Cu,P) in photon fields relatively to reproducibility, detection threshold and angular dependence as defined in the ISO 12794 standard are presented. The fading properties and the limit of detection wer...

journal_title：Radiation protection dosimetry

authors： Freire LC,Pereira MF,Calado AM,Santos LM,Cardoso JV,Alves JG

更新日期：2011-03-01 00:00:00

abstract：:A Monte Carlo-based stand-alone program, IDACstar (Internal Dose Assessment by Computer), was developed, dedicated to perform radiation dose calculations using complex voxel simulations. To test the program, two irradiation situations were simulated, one hypothetical contamination case with 600 MBq of 99mTc and one ex...

journal_title：Radiation protection dosimetry

authors： Ören Ü,Hiller M,Andersson M

更新日期：2017-04-28 00:00:00

abstract：:Boron neutron capture therapy is known to be an effective radiation cancer therapy that requires neutron irradiation. A neutron field generated by an accelerator-based neutron source has various energy spectra, and it is necessary to evaluate the neutron spectrum in the treatment field. However, the method used to mea...

journal_title：Radiation protection dosimetry

authors： Tamaki S,Kusaka S,Sato F,Murata I

更新日期：2018-08-01 00:00:00

abstract：:A new method was developed to determine HT deposition velocity and to investigate how environmental factors affect the deposition processes including the diffusion into soil and the biochemical conversion by microorganisms to HTO in soil. This method, using a chamber and two tritium samplers, enables determination of ...

journal_title：Radiation protection dosimetry

authors： Koarashi J,Amano H,Andoh M,Iida T,Koma T

更新日期：2001-01-01 00:00:00

abstract：:The group of radiation victims who had received radiation injures similar to those of Chernobyl accident victims was evaluated in terms of retrospective cytogenetic biodosimetry in the long term period of from 17 y up to 50 y after irradiation. Based on the existing results of the long-term cytogenetic examination of ...

journal_title：Radiation protection dosimetry

authors： Nugis VY,Kozlova MG,Nadejina NM,Galstyan IA,Nikitina VA,Khvostunov IK,Golub EV

更新日期：2019-12-31 00:00:00

abstract：:Continuous observation of radioactivity ratio of (214)Bi to (214)Pb as tracers in rainwater was carried out with 15-min cyclic measurement at Nagoya, Japan, from August 2011 to July 2012 to characterise wet deposition. The ratio ranged from 0.55 to 3.82. Based on the observation and a simplified time evolution model o...

journal_title：Radiation protection dosimetry

authors： Moriizumi J,Kondo D,Kojima Y,Liu H,Hirao S,Yamazawa H

更新日期：2015-11-01 00:00:00

abstract：:Within the framework of the European Metrological Research Program (EMRP) IND04 MetroMetal 'Ionizing radiation metrology for the metallurgical industry', joint research carried out by 14 metrological institutions from countries within the European Union and the company ENVINET, questions concerning the determination o...

journal_title：Radiation protection dosimetry

authors： Tecl J,Solc J,Kovar P,Bunata M

更新日期：2014-11-01 00:00:00

abstract：:South coast of India is known as the high-level background radiation area (HBRA) mainly due to beach sands that contain natural radionuclides as components of the mineral monazite. The rich deposit of monazite is unevenly distributed along the coastal belt of Tamil Nadu and Kerala. An HBRA site that laid in 2×7 m alon...

journal_title：Radiation protection dosimetry

authors： Matsuda N,Brahmanandhan GM,Yoshida M,Takamura N,Suyama A,Koguchi Y,Juto N,Raj YL,Winsley G,Selvasekarapandian S

更新日期：2011-07-01 00:00:00

abstract：:Electron paramagnetic resonance spectra and dose-response curves are presented for a variety of wallboard samples obtained from different manufacturing facilities, as well as for source gypsum and anhydrite. The intensity of the CO(3)(-) paramagnetic centre (G2) is enhanced with gamma radiation. Isothermal decay curve...

journal_title：Radiation protection dosimetry

authors： Mistry R,Thompson JW,Boreham DR,Rink WJ

更新日期：2011-11-01 00:00:00

abstract：:To assess occupational exposure to electromagnetic fields, 11 microwave (MW), 4 short-wave diathermy and 15 magneto therapy devices were analysed in eight physiotherapy departments. Measurements taken at consoles and environmental mapping showed values above European Directive 2004/40/EC and ACGIH exposure limits at a...

journal_title：Radiation protection dosimetry

authors： Maccà I,Scapellato ML,Carrieri M,Pasqua di Bisceglie A,Saia B,Bartolucci GB

更新日期：2008-01-01 00:00:00

abstract：:The USA must be prepared to provide a prompt, coordinated and integrated response for radiation dose and injury assessment for suspected radiation exposure, whether it involves isolated cases or mass casualties. Dose estimation for radiation accidents typically necessitates a multiple parameter diagnostics approach th...

journal_title：Radiation protection dosimetry

authors： Dainiak N,Albanese J,Kaushik M,Balajee AS,Romanyukha A,Sharp TJ,Blakely WF

更新日期：2019-12-31 00:00:00

abstract：:The use of the parallel-plate avalanche counter for slow-neutron counting is described. The choice of a suitable neutron converter is discussed on the basis of Monte Carlo simulation, and some experimental results are shown. Excellent gamma-insensitivity, high rate capability, possibility of construction in large sens...

journal_title：Radiation protection dosimetry

authors： Nakhostin M,Baba M,Itoga T,Oishi T,Unno Y,Kamada S,Okuji T

更新日期：2008-01-01 00:00:00

abstract：:Ionising radiation can induce responses within non-exposed neighbouring (bystander) cells, which potentially have important implications on the estimates of risk at environmentally relevant doses. Using human skin fibroblasts (AG1522), a range of methods were used to investigate the nature of the signal(s) arising fro...

journal_title：Radiation protection dosimetry

authors： Pyke EL,Stevens DL,Hill MA

更新日期：2006-01-01 00:00:00

abstract：:Bi-directional signaling involved in radiation-induced bystander effect (RIBE) between irradiated carcinoma cells and their surrounding non-irradiated normal cells is relevant to radiation cancer therapy. Using the SPICE-NIRS microbeam, we delivered 500 protons to A549-GFP lung carcinoma cells, stably expressing H2B-G...

journal_title：Radiation protection dosimetry

authors： Kobayashi A,Autsavapromporn N,Ahmad TAFT,Oikawa M,Homma-Takeda S,Furusawa Y,Wang J,Konishi T

更新日期：2019-05-01 00:00:00

abstract：:The localisation of an unknown neutron source in various bulky homogeneous media was studied. For the planar case two (3)He detectors on the opposite faces of a box were used. It is shown that the location of a single small neutron emitting source in a large box can be found to a better than 7% by using two neutron de...

journal_title：Radiation protection dosimetry

authors： Dubinski S,Presler O,Alfassi ZB

更新日期：2007-01-01 00:00:00

abstract：:With the availability of the National Institute of Standards and Technology (NIST) Radon Emanation Standard with a content of approximately 5000 Bq of 226Ra, it is possible to build a flow through a practical radon test chamber. A standard glove box with four gloves and a transfer port is used. Air is pumped through a...

journal_title：Radiation protection dosimetry

authors： Kotrappa P,Stieff F

更新日期：2008-01-01 00:00:00

abstract：:The frequencies and effective doses for the most common X-ray diagnostic examinations in Ukraine were assessed in the frame of the European Commission (EC) Study on European Population Doses from Medical Exposure (Dose Datamed 2). The average effective doses for all radiographic procedures were estimated using the ODS...

journal_title：Radiation protection dosimetry

authors： Stadnyk L,Shalopa O,Nosyk O

更新日期：2015-07-01 00:00:00

abstract：:Thailand is predominantly an agricultural country. The Northern Region occupies the second largest cultivated land area in the country. To establish baseline data for future environmental monitoring, seventy-nine plant samples including vegetables, fruits and tobaccos and their relevant soils were collected from the m...

journal_title：Radiation protection dosimetry

authors： Kritsananuwat R,Kranrod C,Chanyotha S,Ploykrathok T,Sriploy P

更新日期：2019-10-01 00:00:00

abstract：:This paper presents a compartmental model for estimating the ingestion dose, due to 137Cs, arising from the consumption of marine fish in Hong Kong. 137Cs is one of the more important radionuclides released in routine liquid effluents discharged from the Guangdong Nuclear Power Station at Daya Bay, which began commerc...

journal_title：Radiation protection dosimetry

authors： Poon CB,Au SM

更新日期：2002-01-01 00:00:00

abstract：:The E. coli catabolite gene activator protein (CAP)-DNA complex with 125I located at the position of the H5 atom of the cytosine near the centre was incorporated into the PARTRAC track structure code. DNA strand breaks due to irradiation were calculated by track structure and radical attack simulations; strand breaks ...

journal_title：Radiation protection dosimetry

authors： Li W,Friedland W,Jacob P,Paretzke HG,Panyutin I,Neumann RD

更新日期：2002-01-01 00:00:00

abstract：:Dosimetric monitoring and protection of the personnel involved into interventional procedures is one of the key issues nowadays, yet doses received by their brains were left without rigorous consideration so far. The paper is the fast track of the results of the pilot study of possible magnitude of operator's doses wi...

journal_title：Radiation protection dosimetry

authors： Chumak V,Morgun A,Bakhanova E,Voloskyi V

更新日期：2016-09-01 00:00:00

abstract：:Radionuclide concentrations of ²²⁶Ra, ²³²Th and ⁴⁰K in different types of building materials used in Egypt were measured using gamma-ray spectroscopy. The results showed relatively moderate radionuclide concentrations for all samples except granite, which showed extremely high concentrations of 78.75 ± 2.36, 2.82 ± 0....

journal_title：Radiation protection dosimetry

authors： Hassan NM,Mansour NA,Fayez-Hassan M

更新日期：2013-12-01 00:00:00

abstract：:Natural radionuclide contents of 226Ra, 228Ra and (40)K were studied for inter-tidal sediments collected from selected locations off the745 km long Balochistan Coast using HPGe detector based gamma-spectrometry system. The sampling zone extends from the beaches of Sonmiani (near Karachi metropolis) through Jiwani (clo...

journal_title：Radiation protection dosimetry

authors： Akram M,Qureshi RM,Ahmad N,Solaija TJ

更新日期：2007-01-01 00:00:00

abstract：:Bonner sphere spectrometers (BSSs) are employed in neutron spectrometry and dosimetry since many years. Recent developments have seen the addition to a conventional BSS of one or more detectors (moderator plus thermal neutron counter) specifically designed to improve the overall response of the spectrometer to neutron...

journal_title：Radiation protection dosimetry

authors： Agosteo S,Dimovasili E,Fassò A,Silari M

更新日期：2004-01-01 00:00:00

abstract：:Particle accelerators and their surroundings are locations of residual radioactivity production that is induced by the interaction of high-energy particles with matter. This paper gives an overview of the principles of activation caused at proton accelerators, which are the main machines operated at Conseil Européen p...

journal_title：Radiation protection dosimetry

authors： Vincke H,Theis C,Roesler S

更新日期：2011-07-01 00:00:00

abstract：:Values of the new protection quantity 'Local Skin Dose' LSD, introduced by the International Commission on Radiological Protection (ICRP) Publication 116, were calculated for 134 β- or β+ emitting radionuclides, using the Monte Carlo code MCNP6. Two types of source geometry are considered: a point source and disc-type...

journal_title：Radiation protection dosimetry

authors： Bourgois L,Ménard S,Comte N

更新日期：2017-11-01 00:00:00