Abstract A radiation-tolerant silicon carbide (SiC) based dosimeter was developed for the measurement of linear energy transfer (LET) distributions along Bragg curve pristine and spread-out peak (SOBP) clinical carbon beam. Since conventional ionized chamber is not suitable effective LET measurement, several energy-dispersive dosimeters are being tested in field. While most detector lacks radia...

Background: Hospitals are the front line of dealing with Incidents. Chemical, biological, radiological, and nuclear (CBRN) incidents alarming for governments' healthcare providers public. Therefore, they must make necessary preparations to deal these incidents. Objectives: This study aimed evaluate preparedness hospitals against chemical, related influential factors. Methods: The present was a ...

The delta-ray theory of track structure, applied earlier to such 1-or-more hit detection systems as the inactivation of dry enzymes and viruses, the NaI(Tl) scintillation counter, and nuclear emulsion, is extended to the silver activated phosphate glass dosimeter, the LiF thermoluminescent dosimeter, the creation of free radicals in solid biological substances, solid and liquid organic scintill...

BACKGROUND Polymer gel dosimeters combined with magnetic resonance imaging (MRI) can be used for dose verification of advanced radiation therapy techniques. However, the uncertainty of dose map measured by gel dosimeter should be known. The purpose of this study is to investigate the uncertainty related to calibration curve and MRI protocol for MAGIC (Methacrylic and Ascorbic acid in Gelatin In...

As part of its role in providing radiometric standards in support of industry, the National Institute of Standards and Technology has been active in advancing extreme ultraviolet dosimetry on various fronts. Recently, we undertook a major effort in accurately measuring the sensitivity of three extreme ultraviolet photoresists. It has been common practice to use photoresists as a transfer “stand...

A method for evaluating the overall uncertainty of alanine EPR transfer dosimetry in the therapeutic dose range is described. The method uses experimental data on EPR signal reproducibility from replicate dosimeters irradiated to low doses (1-5 Gy), estimates of Type B uncertainties, and Monte Carlo simulations of heteroscedastic orthogonal linear regression. A Bruker ECS106 spectrometer and Br...

The commonly used thermoluminescent dosimeter TLD-100 (Harshaw Chemical Company, Solon, OH) responds not only to photons and electrons, but also to neutrons that are produced during high-energy therapies. As a result, TLD-100 measurements outside of the treatment field are suspect when high-energy radiation is used. Although alternatives such as TLD-700 do not respond to neutrons, specialty dos...

We have developed a small, light, and multi-functional electronic personal dosimeter (EPD) using four semiconductor radiation detectors for dose monitoring of workers at nuclear power plants and high-energy accelerator facilities. This dosimeter is about 103 x 55 x 15 mm in size and approximately 110 g in weight, and capable of measuring gamma-ray and neutron doses in Hp(10), and beta-ray dose ...

Purpose In our proton beam therapy center, we use imaging plates (IP) for dose verification of field matching in irradiation (called patch-field technique). this study, a polymer gel dosimeter, which can perform three- dimensional distribution measurement, was used as new tool the patch method corresponding to rectangular irradiation. Method The results measurements PAGAT dosimeter irradiate tw...

LiMgBO3:Tb3+ TL phosphor was systematically developed having better personnel neutron dosimetry properties as compared with the standard LiF:Mg,Ti dosimeter. Neutron irradiated PL and EPR studies delineated underlying defect induced mechanism.