Book reviewsThe Control of Exposure of the Public to Ionizing Radiation in the Event of Accident or Attack. By National Council on Radiation Protection and Measurements, pp. 290, 1982 (NCRP, Bethesda MD, USA), US $20. ISBN 0–913392–58–8

1983 ◽  
Vol 56 (664) ◽  
pp. 266-266
Author(s):  
Douglas Black
Keyword(s):  
Ionizing Radiation ◽  
Radiation Protection ◽  
National Council ◽  
The Public

scholarly journals Radiodiagnostic Equipment: Regulations and Materiovigilance

2021 ◽  
Vol 319 ◽  
pp. 01090
Author(s):  
Laila El Younoussi ◽  
Brahim Benaji ◽  
Mohammed Azougagh ◽  
Souad Lebbar ◽  
Lekbir El hamidi ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Ionizing Radiation ◽  
Radiation Protection ◽  
Medical Devices ◽  
World Health ◽  
Diagnostic Equipment ◽  
International Guidelines ◽  
The Public ◽  
The World ◽  
Monitoring And Surveillance

The use of medical devices (MDs) in the field of medical imaging has always been governed by rigorous regulations, in particular the authorizations and compliance of radiological installations and premises in view of the risks generated by the ionizing radiation produced by these MDs. The regulatory bases that deal with equipment emitting ionizing radiation are diversified between those specific to the protection of the public and users of ionizing radiation and those relating to medical devices. In addition, radio-diagnostic equipment must provide all the guarantees in terms of the balance between benefits and risks. Although radiation protection is essential, materiovigilance is one of the key elements of technological monitoring and surveillance of the risks that may result from the use of these medical devices after they have been placed on the market. The Moroccan legislation has a legal arsenal in accordance with the model of the World Health Organization’s global regulatory framework for medical devices. It outlines regulations and adheres to international guidelines in the field of vigilance against ionizing radiation. However, it is necessary to move on to the specification of procedures in order to remove any ambiguity.

scholarly journals Structural Shielding Design of CT Facility using Monte Carlo Simulation

2021 ◽  
Vol 8 (2) ◽  
pp. 143-147
Author(s):  
Ashwani Kumar Yadav ◽  
Basilia Quispe Huillcara ◽  
Pablo Víctor Cerón Ramírez ◽  
Modesto Antonio Sosa Aquino ◽  
Miguel Ángel Vallejo Hernández
Keyword(s):  
Monte Carlo ◽  
Radiation Protection ◽  
Radiation Transport ◽  
Photon Flux ◽  
National Council ◽  
Ct Scanner ◽  
X Ray ◽  
The Public ◽  
Detector Cell ◽  
Shielding Design

Radiation application in medicine offers extraordinary benefits. But radiation is like a double-edged sword, it has both benefits and associated risks on the community in contact. To justify the safety of workers and members of the public, regulated use of radiation is assessed by the radiation protection protocols. The aim of this study is to design a Computed Tomography (CT) facility with a simplified model of CT scanner, whose shielding follows the guidelines of National Council on Radiation Protection and Measurements (NCRP) Report No. 147. To design the study model, Monte Carlo (MC) radiation transport code in MCNPX 2.6.0 was used for the simulation. Furthermore, MCNPX was used to measure the photon flux in a vicinity or the detector cell. To validate the functioning of the X-ray tube, the experimental results were compared with the X-ray Transition Energies Database of National Institute of Standards and Technology, U.S. Department of Commerce. The results obtained were within 0.60% of relative error. To confirm the functioning of shielding design, radiation protection quantity, air kerma was measured at several points outside, and inside of the CT room and they were under the radiation dose recommended by NCRP, which demonstrates that the shielding design wassuccessful in blocking the radiation. The study can be used for an easy evaluation of any CT room within the framework of the model of the study.

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