New Trend in Radiation Dosimeters

Abstract

A radiation dosimeter is a device that measures exposure to ionizing radiation. It is used for human radiation protection as a measurement of dose in both medical and industrial processes. This study aimed to identify and highlight the new technology in the types of radiation dosimeters. The study comprises a personal selection of recent reports from radiology journals and Medline searches which highlighted the new trend in radiation dosimeters. Radiation dosimeters and dosimetry systems come in many shapes and forms. They rely on numerous physical effects for storage and readout of the dosimetric signal. The four most commonly used radiation dosimeters are: Ionization chambers; Radiographic films; Thermoluminescent dosimeter systems (TLDs); Silicon diode dosimetry systems (Diodes). There are a variety of electronic dosimetry systems that can monitor any work environment. Electronic dosimeters protect the wearer from the harmful effects of radiation by tracking changes in exposure and keeping an ongoing record of the user's dose over time. Combined with access control systems, it is possible to limit total exposure to radiation and control access to radiological areas. Dosimetry readers, ensure accurate radiation exposure monitoring. Manual and automated systems for whole body, extremity, neutron, and environmental monitoring are easy to operate, service, and maintain. Extremity dosimeter is a disk dosimeter designed for nuclear power or nuclear medicine personnel that have a high risk of exposure to ionizing radiation, particularly on their hands, due to their work in close proximity to radiation materials and radiation producing equipment.

Functional lightweight protective clothing shielding design for constant radiation shielding of flight attendants and Monte Carlo simulation verification

“…A Mirion DMC 3000 (Mirion Technologies, Inc., Atlanta, United States) was used as the detector for gamma-ray and neutron dose measurements (Abaza, 2018). The correction coefficient for temperature and atmospheric pressure for accurate radiation dose measurement of the detector was confirmed to be 1.0 at a laboratory temperature of 22 °C and 1 atm and was used after inspection and calibration.…”

El Potencial de la Hidroxiapatita Dopada como Sensor Termoluminiscente de Radiación ionizante

“…Específicamente en medicina, la radiación gamma es utilizada como trazadores de diagnóstico médico para identificar, observar o vigilar el comportamiento de diversos procesos físicos, químicos o biológicos en el cuerpo, en gammagrafía para detectar tumores y en radioterapia para aniquilar estos tumores malignos (Zarinfar et al, 2015a); la radiación gamma es también utilizada para la esterilización de material quirúrgico (Elliyanti, 2019). Es decir, la radiación gamma es ampliamente utilizada en el área médica, principalmente para el tratamiento de pacientes; dependiendo del objetivo de la irradiación, la dosis aplicada va desde algunos mGy hasta decenas de Gy (Gy= gray, dosis absorbida que expresa la cantidad de energía absorbida por unidad de masa de un material y es igual a J/kg) (Abaza, 2018;Duragkar et al, 2019). En tanto que para la esterilización de material quirúrgico son necesarias dosis de hasta algunos KGy (Chapman et al, 1979).…”

Comparative performance assessment of the most commonly used personnel radiation dosimeters in Nigeria

“…Radiation dosimetry is seen as a tool used extensively for protection against ionizing radiation and could be routinely applied to occupational radiation workers, to ensure that regulatory levels were not be exceeded [6,7]. It can also be employed where ionizing radiation is unexpected, such as in the aftermath of the Three Mile Island, Chernobyl or Fukushima radiological hazard related incidents, such that the public irradiation is measured and calculated from a variety of indicators such as ambient measurements of radiation and radioactive contamination [8].…”

“…Devices, instrument or system that has the ability to measure or estimate, either directly or indirectly, the quantities exposure, kerma, absorbed dose or equivalent dose, or their time derivatives (rates), or related quantities of ionizing radiation are seen as ionizing radiation dosimeters [10]. Dosimeters coupled with their reader are referred to as a dosimetry system [7]. There are two main uses of dosimeters; for human ionizing radiation monitoring and for measurement of absorbed dose in both clinical and industrial processes.…”