Filter, collimator and moderating material to achieve boron neutron capture enhanced fast neutron therapy.

abstract：:The use of depleted uranium ammunition in South Serbia during the 1999 Kosovo conflict raised a great deal of public concern in the Balkans. Radioactivity levels of 238U in 20 wells and lake water samples were checked from the viewpoint of internal radiation exposure for South Serbian subjects. We have measured 238U c...

journal_title：Radiation protection dosimetry

authors： Sahoo SK,Matsumoto M,Shiraishi K,Fujimoto K,Cuknic O,Zunic ZS

更新日期：2007-01-01 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：:A passive Bonner sphere system (BSS), based on thermal neutron activation detectors, was developed to perform neutron spectrometry in pulsed and very intense (n-gamma) fields with predominant photon component, as those produced by high energy (>10 MV) medical linear electron accelerators. In this paper, a description ...

journal_title：Radiation protection dosimetry

authors： Amgarou K,Lacoste V,Muller H,Fernández F

更新日期：2007-01-01 00:00:00

abstract：:The objective of this article is to present initial occupational dose values using digital active personal dosimeters for medical staff during adult interventional cardiology procedures in a public hospital in Chile. Personal dose equivalent Hp(10) over the lead apron of physician, nurse and radiographer were measured...

journal_title：Radiation protection dosimetry

authors： Ubeda C,Morales C,Gutiérrez D,Oliveira M,Manterola C

更新日期：2018-12-01 00:00:00

abstract：:Habit surveys were carried out around four licensed nuclear sites to identify people who collect foodstuffs from the wild (so-called 'free foods'). In total, around 800 collectors were readily identified, most of whom collected more than one free food. The data indicated that estimates of higher than average doses cou...

journal_title：Radiation protection dosimetry

authors： Green N,Wilkins BT,Hammond DJ,Davidson MF,Richmond S,Brooker S

更新日期：2001-01-01 00:00:00

abstract：:The occupational radiation exposure of medical radiation workers at the Institute of Oncology, Vilnius University (IOVU) was analysed. Quartile dose measurements were collected and routinely analysed for a period of 8 y from 1 January 2004 to 31 December 2011. A total of 193 medical radiation workers were monitored, c...

journal_title：Radiation protection dosimetry

authors： Samerdokiene V,Atkocius V,Ofomala R

更新日期：2013-11-01 00:00:00

abstract：:In the light of a growing awareness of the risks of inducing skin injuries as a consequence of fluoroscopically guided interventional procedures (FGIPs), this paper reports measurements of ESDs made during the period August 1998 to June 1999 on 137 patients undergoing cardiac, neurological and general FGIPs in the Sou...

journal_title：Radiation protection dosimetry

authors： Waite JC,Fitzgerald M

更新日期：2001-01-01 00:00:00

abstract：:Biokinetic models are the scientific underpinning of internal dosimetry and depend, ultimately, for their scientific validation on comparisons with human bioassay data. Three significant plutonium/americium bioassay databases, known to the authors, are described: (1) Sellafield, (2) Los Alamos and (3) the United State...

journal_title：Radiation protection dosimetry

authors： Miller G,Riddell AE,Filipy R,Bertelli L,Little T,Guilmette R

更新日期：2007-01-01 00:00:00

abstract：:The dependence of the doses on solar activity for intermediate levels of the solar modulation parameter has been studied by means of simulations carried out by the Monte Carlo transport code FLUKA. The vertical cut-off rigidities investigated lie between 0.4 and 6.1 GV. The calculated results show that the linear depe...

journal_title：Radiation protection dosimetry

authors： Ferrari A,Pellicioni M,Rancati T

更新日期：2002-01-01 00:00:00

abstract：:To study the shielding effect of radiologists' eye lens with lead glasses of different equivalent thicknesses and sizes in interventional radiology procedures. Using the human voxel phantom with a more accurate model of the eye and MCNPX software, eye lens doses of the radiologists who wearing different kinds of lead ...

journal_title：Radiation protection dosimetry

authors： Hu P,Kong Y,Chen B,Liu Q,Zhuo W,Liu H

更新日期：2017-04-20 00:00:00

abstract：:The radiation therapy carried out by means of heavy charged particles (such as carbon ions) and neutrons is rapidly becoming widespread worldwide. The success of these radiation therapies relies on the high density of energy released by these particles or by secondary particles produced after primary interaction with ...

journal_title：Radiation protection dosimetry

authors： Marrale M,Longo A,Barbon A,Brustolon M,Brai M

更新日期：2014-10-01 00:00:00

abstract：:Radon is one of the noble gases, which are chemically inert and do not make any reactants under normal conditions. In this experiment we demonstrated an enigmatic reaction between radon and fluorine when a corona discharge is used as a promoter. Distinctive changes in radon concentrations were caused by the discharge ...

journal_title：Radiation protection dosimetry

authors： Yamada Y,Koizumi A,Ishikawa K,Hishinuma Y,Tatenuma K

更新日期：2005-01-01 00:00:00

abstract：:The aim of the present work is to investigate the possibility of using the properties of the thermoluminescent emission (TL) of Brazilian natural topaz for dosimetric applications. Topaz is an aluminium fluorsilicate with general composition of Al2(SiO4)(F,OH)2 found with relative abundance in Brazil and in other part...

journal_title：Radiation protection dosimetry

authors： Souza DN,Lima JF,Valerio ME,Caldas LV

更新日期：2002-01-01 00:00:00

abstract：:Expansion of accelerator technologies into different application areas brings the need for neutron-field measurements in their vicinity. The measurements of neutron energy spectra and neutron dose rates can be done with the aid of neutron multisphere spectrometers with passive neutron detectors. In addition to the usu...

journal_title：Radiation protection dosimetry

authors： Vlk P,Pavlovic M

更新日期：2018-04-01 00:00:00

abstract：:Radon gas concentrations in eight basements, four living rooms and four caves from different locations in Kabul and Panjsher, Afghanistan, were measured by using eight active radon exposure meters recently developed by the Helmholtz Center in Munich, Germany. The two-phase measurements lasted from a week to a year. In...

journal_title：Radiation protection dosimetry

authors： Tanha MR,Vahlbruch JW,Riebe B,Irlinger J,Rühm W,Khalid FR,Storai A,Walther C

更新日期：2018-01-01 00:00:00

abstract：:Managing radiation injuries following a catastrophic event where large numbers of people may have been exposed to life-threatening doses of ionizing radiation relies on the availability of biodosimetry to assess whether individuals need to be triaged for care. Electron Paramagnetic Resonance (EPR) tooth dosimetry is a...

journal_title：Radiation protection dosimetry

authors： Schreiber W,Petryakov SV,Kmiec MM,Feldman MA,Meaney PM,Wood VA,Boyle HK,Flood AB,Williams BB,Swartz HM

更新日期：2016-12-01 00:00:00

abstract：:The physics foundations of hadronic interactions as implemented in most Monte Carlo codes are presented together with a few practical examples. The description of the relevant physics is presented schematically split into the major steps in order to stress the different approaches required for the full understanding o...

journal_title：Radiation protection dosimetry

authors： Ferrari A,Sala PR

更新日期：2002-01-01 00:00:00

abstract：:The neutron dose equivalent in aircraft is measured using commercial bubble detectors, but at high altitudes there are not only neutrons but also protons. Bubble detectors have been used because they are considered not to be sensitive to protons, but this has been the subject of only a few studies. In this study, by i...

journal_title：Radiation protection dosimetry

authors： Takada M,Kitamura H,Koi T,Nakamura T,Fujitaka K

更新日期：2004-01-01 00:00:00

abstract：:The relation of radiation exposure (dose) with acute radiation syndrome (ARS) depends on many factors. In this overview, we reconsider (1) radiation exposure characteristics (e.g. radiation quality, fractionation, dose rate, partial/total body irradiation) and (2) biological processes (e.g. radiosensitivity, cell cycl...

journal_title：Radiation protection dosimetry

authors： Port M,Majewski M,Abend M

更新日期：2019-12-31 00:00:00

abstract：:A new proposed design of neutron shielding material-based on the commercial material Borotron UH050 with an addition of Al(OH)3-is evaluated in order to determine if its neutron and gamma shielding properties match those of a reference material, NS4FR. Neutron and gamma dosimetry measurements are performed, as well as...

journal_title：Radiation protection dosimetry

authors： Campo X,Méndez R,Lacerda MAS,Garrido D,Embid M,Sanz J

更新日期：2018-08-01 00:00:00

abstract：:A follow-up study was taken up in a mineralised zone situated in Hamirpur district, Himachal Pradesh, India, to investigate high values of radon concentrations reported in past studies as well to update the old radon data based on bare SSNTD technique. In the present investigation, the concentrations of indoor radon, ...

journal_title：Radiation protection dosimetry

authors： Bajwa BS,Singh P,Singh P,Saini K,Singh S,Sahoo BK,Sapra BK

更新日期：2016-03-01 00:00:00

abstract：:A recoil-proton spectrometer was created by coupling a p-i-n diode with a polyethylene converter. The maximum detectable energy, imposed by the thickness of the totally depleted layer, is approximately 6 MeV. The minimum detectable energy is limited by the contribution of secondary electrons generated by photons in th...

journal_title：Radiation protection dosimetry

authors： Agosteo S,D'Angelo G,Fazzi A,Foglio Para A,Pola A,Ventura L,Zotto P

更新日期：2004-01-01 00:00:00

abstract：:The occupational exposure incurred by the radiation workers due to the external radiation is estimated using personal dosemeter placed on the human body during the monitoring period. In certain situations, it is required to determine whether the dosemeter alone was exposed accidentally/intentionally in radiation field...

journal_title：Radiation protection dosimetry

authors： Srivastava K,Soin S,Sapra BK,Ratna P,Datta D

更新日期：2017-11-01 00:00:00

abstract：:Various methodologies that aim at an analytic representation of the dielectric response function (DRF) of liquid water with emphasis on the Bethe ridge region are compared. The use of optical data is a common feature to all models presented providing an empirical ground for modelling the valence energy losses where ma...

journal_title：Radiation protection dosimetry

authors： Emfietzoglou D,Nikjoo H,Pathak A

更新日期：2006-01-01 00:00:00

abstract：:The national diagnostic reference levels (NDRLs) form an efficient, concise and powerful standard for optimising radiation protection of a patient. However, in a large hospital, where many radiological departments are present, it is also possible to calculate and define lower dose values as local diagnostic reference ...

journal_title：Radiation protection dosimetry

authors： Compagnone G,Pagan L,Bergamini C

更新日期：2005-01-01 00:00:00

abstract：:Monte Carlo simulations of the energy response of a conventionally packaged single metal-oxide field effect transistors (MOSFET) detector were performed with the goal of improving MOSFET energy dependence for personal accident or military dosimetry. The MOSFET detector packaging was optimised. Two different 'drop-in' ...

journal_title：Radiation protection dosimetry

authors： Othman MA,Cutajar DL,Hardcastle N,Guatelli S,Rosenfeld AB

更新日期：2010-09-01 00:00:00

abstract：:In the frame of the EU Coordination Action CONRAD (coordinated network for radiation dosimetry), WP4 was dedicated to work on computational dosimetry with an action entitled 'Uncertainty assessment in computational dosimetry: an intercomparison of approaches'. Participants attempted one or more of eight problems. This...

journal_title：Radiation protection dosimetry

authors： de Carlan L,Price R,Chartier JL,Kodeli I,Siebert B,Henninger J,Posselt J,Gualdrini G,Agosteo S,Bedogni R,Bordy JM,Cassette P,Ferrari P,Gomez Ros JM,Grosswendt B,Lacoste V,Pola A,Rollet S,Schultz F,Simakov SP,Tanne

更新日期：2008-01-01 00:00:00

abstract：:The activity size distribution of the Equilibrium-Equivalent Concentration (EER) of 222Rn is one of the most important parameters for the estimation of radiation dose by inhalation of radon decay products. A series of measurements of the EER activity size distribution were performed by the screen diffusion battery in ...

journal_title：Radiation protection dosimetry

authors： Otahal PPS,Burian I,Ondracek J,Zdimal V,Holub RF

更新日期：2017-11-01 00:00:00

abstract：:A Japanese voxel phantom in upright posture, JM2, has been developed on the basis of CT images of a healthy Japanese adult male. Body characteristics of JM2 were compared with those of the supine voxel phantom, JM, previously developed using CT images of the same person. Differences were found in the shapes of the spi...

journal_title：Radiation protection dosimetry

authors： Sato K,Noguchi H,Endo A,Emoto Y,Koga S,Saito K

更新日期：2007-01-01 00:00:00

abstract：:Doses received by Cuban population due to exposure to the environmental sources of radiation were studied for their evaluation. Estimations of doses from the different components of the total dose were obtained and published. From the results obtained estimations of total doses to Cuban population from environmental r...

journal_title：Radiation protection dosimetry

authors： Tomás Zerquera J,Prendes Alonso M,Díaz Rizo O

更新日期：2007-01-01 00:00:00