[en] The aim of this study was to assess radiation exposure levels in diagnostic x-ray units in medical facilities in Coast, Lindi and Mtwra regions in Tanzania, in order to establish whether the exposure levels are within the internationally recommended dose rate limits.

[en] Since individual dose monitoring data are the basis for radiation protection evaluation, it’s necessary to establish an information management system for dose records of workers who are monitored for occupational exposure to ionizing radiation. Many countries have established their own national dose management systems and provide extreme valuable information on occupational exposure protection for the authority. The applications of occupational dose data management system for in China are summarized, the applications in other countries are also discussed.

[en] The main tasks of the German National Radiation Dose Register (SSR), which is a facility of the Federal Office of Radiation Protection (BfS), is the collection and surveillance of occupational radiation doses from workers which are occupationally exposed to ionising radiation. Furthermore, the SSR regularly performs statistical analyses of the collected data in order to explore the state of the art and trends of the occupational radiation exposure. A solid and broad knowledge in that respect is the basis to further optimise the operational radiation protection. In this context, the SSR performed a thorough analysis of the exposure situation of aircraft personnel since the beginning of the COVID-19 pandemic.

[en] Bunker design and shielding are fundamental to the radiation protection of staff and the public in a radiation therapy department. The workload is an important factor in the design of protective barriers. With the advent of Intensity Modulated Radiotherapy (IMRT), the workload of linac increased significantly since it requires more monitor units (MUs) per treatment. The aim of this study was to evaluate the workload of linac at Apeksha Hospital, Maharagama, Sri Lanka.

[en] Problem: Iodine-131 (¹³¹I) is the most commonly used iodine radioisotope, and activities used are sometimes very high. In solution iodine is volatile at room temperature; nuclear medicine personnels are thus exposed both to external irradiation risk of which is monitored by wearing a dosimeter and to internal contamination risk of induced by inhalation.

[en] The main emphasis in radiation protection is the “optimization of protection”. The methods for reducing doses covered a broad spectrum, which ranges from simple organizational adjustments to a modification of the design of the facility concerned. This presentation adopts the ALARA techniques means of avoiding exposure to radiation using the three basic protective measures in radiation safety as; time, distance and shielding. Effective work management is necessary for the optimization and reduction of exposures; such as work planning and scheduling; general workers education; awareness; involvement of workers; communication; facility and equipment design; reducing the number of works necessary; reducing dose rates and specialized training. Other component of the presentation is a general review of the means that are available in most workplaces to reduce exposure. These global means is the application of effective and efficient procedures for the management of work and provision for the education and training of workers. (author)

[en] Background: Medical physicists have long played an integral role in medical imaging, radiation therapy, and radiation protection. In Tunisia, the status of the profession is flawed, the most important of which are the system of obtaining certificates and the legislative framework that regulates the sector. Most importantly, this situation can negatively impact treatment quality, patient and worker safety, whether through reluctance or relocation of staff. Methodology: Statistical studies were conducted on the number and location of medical physicists and a national report on the status of medical physicists was prepared. Gaps have been identified and solutions presented to relevant decision-makers in the form of recommendations to advance the health care system.

[en] Full text: Background: This is the first study that has been done in Morocco with the aim of optimizing protection of workers in diagnostic radiology, by using Monte Carlo simulation and Optically Stimulated Luminescence (OSL). Methods: Measurements have been performed OSL detectors to determine the dose received by workers. Results: There was no statistically significant difference between dose simulated by GATE and those measured using the OSL (P < 0.01). Conclusion: Monte Carlo simulation responses were suitable and could provide an accurate alternative for dose determination with non‐uniform primary x‐ray beams.

[en] Continuous supervision of employee radiation dosage is crucial to sustain dosimeter standards in workplaces. In a variety of work places, radiation accidents continue to occur and eliminating them totally is still a great challenge. Employers strive to ensure compliance with radiation protection standards; where emergency plans are taken in the event of a radiation accident. However, historical review of the radiation exposure among workers indicate that dozes have decreased with time due to radiation protection practices since the discovery of x-rays. Despite the positive trend realized towards minimum radiation exposure, continual evaluation of occupational doze records is recommended due to the increasing number of medical imaging procedures that are currently being performed.

[en] Aim: to describe the steps of constitution and the work plan of the new radiation protection committee in our University Hospital Introduction: Military hospital of Tunis is a University Hospital using radiation in many fields: radiology, nuclear medicine and interventional procedures. As it started an accreditation process since 2018. We had decided to establish a specialised committee for the radiation protection to compensate the lack of regulation and to set up a control of ionising radiation exposure.