Thermoluminescent dosemeters based on TLD-500 detectors for control of neutron fields.

abstract：:Kinetics of dissolution of (238)U, (234)U and (230)Th dust deposited on filters from personal alpha dosemeters was studied by means of a 26-d in vitro dissolution test with a serum ultrafiltrate simulant. Dosemeters had been used by miners at the uranium mine 'Dolní Rozínka' at Rozná, Czech Republic. The sampling flow...

journal_title：Radiation protection dosimetry

authors： Becková V,Malátová I

更新日期：2008-01-01 00:00:00

abstract：:An invited panel discussed with the participants of the Symposium their views on the impact of non-targeted effects on the relationship between microdosimetry and risk. The discussion was wide ranging and lively, with divergences of opinion. At one end was the view that understanding microscopic features and distribut...

journal_title：Radiation protection dosimetry

authors： Goodhead DT

更新日期：2011-02-01 00:00:00

abstract：:Measurements were made according to IEEE standard 644-1994 at a height of 1 m above floor level. It is concluded that none of the measurements exceeded the ACGIH threshold limit value. Among all control rooms the highest measured density amount is 0.69 μT in the control room of Ozgol substation and the lowest is 0.2 μ...

journal_title：Radiation protection dosimetry

authors： Fard MS,Nasiri P,Monazzam MR

更新日期：2011-06-01 00:00:00

abstract：:Diamond is a material with extreme physical properties. Its radiation hardness, chemical inertness and tissue equivalence qualify it as an ideal material for radiation dosimetry. In the present work, the optically stimulated luminescence (OSL) and thermoluminescence (TL) characteristics of a 10 microm thick CVD diamon...

journal_title：Radiation protection dosimetry

authors： Preciado-Flores S,Schreck M,Meléndrez R,Chernov V,Bernal R,Cruz-Vázquez C,Cruz-Zaragoza E,Barboza-Flores M

更新日期：2006-01-01 00:00:00

abstract：:The objective of this work is to obtain fluence to effective dose conversion coefficients for neutron point sources, using the GEANT4 toolkit. These calculations aim to investigate the aspects of neutron transport in the human body through Monte Carlo simulation using the International Commission on Radiological Prote...

journal_title：Radiation protection dosimetry

authors： Ribeiro RM,Souza-Santos D

更新日期：2018-08-01 00:00:00

abstract：:In this study, a method to discriminate between natural and other γ-ray sources from environmental γ-ray dose rate monitoring data was developed, and it was successfully applied to actual monitoring data around nuclear facilities. The environmental dose rate is generally monitored by NaI(Tl) detector systems in the lo...

journal_title：Radiation protection dosimetry

authors： Kumagai K,Ookubo H,Kimura H

更新日期：2015-11-01 00:00:00

abstract：:Two criticality dosimetry systems were tested by Czech participants during the intercomparison held in Valduc, France, June 2002. The first consisted of the thermoluminescent detectors (TLDs) (Al-P glasses) and Si-diodes as passive neutron dosemeters. Second, it was studied to what extent the individual dosemeters use...

journal_title：Radiation protection dosimetry

authors： Frantisek S,Jaroslav T

更新日期：2004-01-01 00:00:00

abstract：:A BEAMnrc Monte Carlo simulation of a diagnostic X-ray unit in a broad beam geometry intended for the derivation of effective linear attenuation coefficients was validated against measurements made on the X-ray unit on which the simulation was based. The validation process assessed the size of the beam, the first and ...

journal_title：Radiation protection dosimetry

authors： Worrall M,Sutton DG

更新日期：2019-12-31 00:00:00

abstract：:This study aims to develop an Automatic Brain Dose Estimation (ABDE) methodology for head computed tomography examinations. The ABDE is to be applied first to an anthropomorphic Alderson phantom to obtain a Correction factor (Cf) between the ABDE and the direct absorbed brain dose using dosemeters positioned within th...

journal_title：Radiation protection dosimetry

authors： Gharbi S,Labidi S,Mars M

更新日期：2020-07-02 00:00:00

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：:The entrance surface dose (ESD) (skin dose) and its variation due to overlapping radiation fields at mammography have been experimentally investigated on patients during two-view mammography screening examinations of both breasts and on phantoms of silicon gel. Measurements were done using multiple thermoluminescence ...

journal_title：Radiation protection dosimetry

authors： Adliene D,Cibulskaite I,Laurikaitiene J,Adlys G

更新日期：2010-04-01 00:00:00

abstract：:A comparison is presented of particular methods of exposure in the first year after the Chernobyl disaster and ten years later. This comparison shows that the population exposure due to the presence of radiocaesium in the environment results from the presence of caesium contained in the soil, which provides 68% of the...

journal_title：Radiation protection dosimetry

authors： Zalewski M,Kapala J,Tomczak M

更新日期：2002-01-01 00:00:00

abstract：:The goal of this study was to develop a method to quantitatively assess the structural shielding performance of computed tomography (CT) rooms in Switzerland. The method was based on the comparison between calculated maximum allowed ambient dose rate (DR) and measured ambient DR in adjacent spaces. If the measured DR ...

journal_title：Radiation protection dosimetry

authors： Treier R,Landis R,Theiler T,Stritt N,Trueb PR,Baechler S

更新日期：2017-04-25 00:00:00

abstract：:In this paper, the result of systematic measurement of the soil gas radon concentrations is discussed and the background values are defined along and around the Main Central Thrust (MCT) in Ukhimath region of Garhwal Himalaya, India. The Ukhimath region is being subjected to intense neotectonic activities like earthqu...

journal_title：Radiation protection dosimetry

authors： Aswal S,Kandari T,Sahoo BK,Bourai AA,Ramola RC

更新日期：2016-10-01 00:00:00

abstract：:To aid in protecting patients from unnecessary exposures and to reduce radiation burdens to the public, a system for tracking a patient's medical exposure history and related radiation doses would be a useful tool. A patient-centred exposure registry, the Patient Exposure Registry (PER), is a mechanism that provides t...

journal_title：Radiation protection dosimetry

authors： Chen J,Moir D,Cornett J

更新日期：2010-12-01 00:00:00

abstract：:We developed a radiation detector based on an organic scintillator for spectrometry and dosimetry of out-of-field secondary neutrons from clinical proton beams. The detector consists of an EJ-299-34 crystalline organic scintillator, coupled by fiber optic cable to a silicon photomultiplier (SiPM). Proof of concept mea...

journal_title：Radiation protection dosimetry

authors： Beyer KA,Di Fulvio A,Stolarczyk L,Parol W,Mojzeszek N,Kopéc R,Clarke SD,Pozzi SA

更新日期：2018-08-01 00:00:00

abstract：:A programme of harmonization of individual dosimetry quality control organized in the framework of a distributed metrology system is presented as seen from the experiences gained in Slovenia. As a part of the programme intercomparison of dosimetry services was organized and basic characteristics of dosimetry systems c...

journal_title：Radiation protection dosimetry

authors： Stuhec M,Zorko B,Vekić B,Miljanić S,Ban R,Basić B

更新日期：2007-01-01 00:00:00

abstract：:Efficiency tracing with unquenched 14C and zero detection threshold with unquenched 3H as tracers are practical and simple techniques which have been implemented to quantify the activity of various beta emitters using liquid scintillation analyser. These techniques are used to study the influence of quench level on ac...

journal_title：Radiation protection dosimetry

authors： Reddy PJ,Bhade SP,Babu DA,Sharma DN

更新日期：2011-11-01 00:00:00

abstract：:The International Electrotechnical Commission introduced the concepts of exposure index (EI), target exposure index (EIT) and deviation index (DI) to manage and optimize patient dose in real time. In this study, we have proposed an appropriate method for setting the EIT based on the Korean national diagnostic referenc...

journal_title：Radiation protection dosimetry

authors： Park H,Yoon Y,Kim J,Kim J,Jeong H,Tanaka N,Morishita J

更新日期：2020-11-17 00:00:00

abstract：:This paper describes the results of the simulation of a radiophotoluminescent (RPL) dosemeter with the Monte Carlo transport code MCNPX. The aim of this study is to calculate the response with MCNPX of the RPL dosemeter in terms of equivalent doses H(p) (0.07) and H(p)(10) using X-ray photon radiation qualities N seri...

journal_title：Radiation protection dosimetry

authors： Hocine N,Donadille L,Huet C,Itié C,Clairand I

更新日期：2011-03-01 00:00:00

abstract：:The purpose of this study was to assess the magnitude of radiation exposure during paediatric CT in Sudanese hospitals. Doses were determined from CT acquisition parameters using CT-Expo 2.1 dosimetry software. Doses were evaluated for three patient ages (0-1, 1-5 and 5-10 y) and two common procedures (head and abdome...

journal_title：Radiation protection dosimetry

authors： Suliman II,Khamis HM,Ombada TH,Alzimami K,Alkhorayef M,Sulieman A

更新日期：2015-12-01 00:00:00

abstract：:The use of a custom-made cylindrical graphite proportional counter (Cy-GPC) along with a cylindrical tissue equivalent proportional counter (TEPC) for neutron-gamma mixed-field dosimetry has been studied in the following steps: first, the consistency of the gamma dose measurement between the Cy-TEPC and the Cy-GPC was...

journal_title：Radiation protection dosimetry

authors： Forouzan F,Waker AJ

更新日期：2018-08-01 00:00:00

abstract：:Accident dosimetry aims to evaluate the unplanned radiation doses delivered to individuals through one of the objects exist in the area of the accident. The gamma dose response of free radicals generated in irradiated aspartame tablets and its usability for emergency dosimetry was studied. EPR spectra of unirradiated ...

journal_title：Radiation protection dosimetry

authors： Maghraby A,Salama E

更新日期：2010-06-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to propose first established diagnostic reference levels (DRLs) in computed tomography (CT) for adults, based on volume-averaged CTDI and dose length product (DLP) metrics in Yazd Province. MATERIALS AND METHODS:Six multislice CT scanners located at diverse areas of Yazd Province an...

journal_title：Radiation protection dosimetry

authors： Zamani H,Masjedi H,Omidi R,Hosein Zare M

更新日期：2020-06-13 00:00:00

abstract：:New statistical distributions have been defined to describe occupational exposures to ionising radiation. These distributions are particularly useful in modelling occupations where most doses are low. The maximum likelihood method was used for parameter estimation and has been adapted to allow doses that are recorded ...

journal_title：Radiation protection dosimetry

authors： Sont WN

更新日期：2006-01-01 00:00:00

abstract：:The availability of active neutron personal dosemeters has made real time monitoring of neutron doses possible. This has obvious benefits, but is only of any real assistance if the dose assessments made are of sufficient accuracy and reliability. Preliminary assessments of the performance of active neutron dosemeters ...

journal_title：Radiation protection dosimetry

authors： Tanner RJ,Bolognese-Milsztajn T,Boschung M,Coeck M,Curzio G,d'Errico F,Fiechtner A,Lillhök JE,Lacoste V,Lindborg L,Luszik-Bhadra M,Reginatto M,Schuhmacher H,Vanhavere F

更新日期：2007-01-01 00:00:00

abstract：:In a large village, Veprin of the Bryansk region of Russia contaminated with radionuclides as a result of the Chernobyl accident, 137Cs concentration in food products of agricultural produce and natural origin was regularly measured, local inhabitants were polled on the composition of their diet, and the 137Cs content...

journal_title：Radiation protection dosimetry

authors： Travnikova IG,Bruk GJ,Shutov VN,Bazjukin AB,Balonov MI,Rahola T,Tillander M

更新日期：2001-01-01 00:00:00

abstract：:Gadolinium is a competent neutron conversion material for neutron detection due to its extremely high neutron capture cross section. It differs from the other neutron reactive materials by emitting large amounts of low-energy electrons for the consequent signal generation in a detector. Such low-energy electrons, thou...

journal_title：Radiation protection dosimetry

authors： Kandlakunta P,Cao L

更新日期：2012-09-01 00:00:00

abstract：:Our debaters have agreed to defend positions that appear to be diametrically opposed; nevertheless, they have acknowledged some common ground. Although it was not explicitly stated, they would no doubt agree that workers and the public are adequately protected by our present system of radiation regulations. Our debate...

journal_title：Radiation protection dosimetry

authors： Edwards AA

更新日期：2003-01-01 00:00:00

abstract：:Stringent standards of hygiene must be applied in medical institutions, especially at operating blocks or during interventional radiology procedures. Medical equipment, including personal dosemeters that have to be worn by medical staff during such procedures, needs therefore to be sterilised. In this study, the effec...

journal_title：Radiation protection dosimetry

authors： Kopeć R,Bubak A,Budzanowski M,Sas-Bieniarz A,Szumska A

更新日期：2016-09-01 00:00:00