Biomedical subjects

R Cruz Suárez

Publications and source records attributed to R Cruz Suárez.

5 recordsLinked to original sources

PubMed2006

Results of the regional intercomparison exercise for the determination of operational quantity HP(10) in Latin America.

Several intercomparison exercises were organised by the International Atomic Energy Agency (IAEA) on the determination of operational quantities at the regional or interregional basis. In the Latin American region an intercomparison for the determination of the operational quantity Hp(10) was completed mid-2004, as a follow-up to previous exercises carried out during the 1990s. Eighteen individual external monitoring services from nineteen Member States participated in the first phase. The second phase grouped 15 services that had participated in the first phase. Dosemeter irradiations in photon beams were done by four Secondary Standard Dosimetry Laboratories (SSDLs) of the region. The preparation of this exercises involved an audit by the IAEA SSDL, where reference irradiations were provided to all participants for verification of their systems. During the first phase (2002-2003) only 9 out of 18 services met the performance requirements for such monitoring services. Necessary corrective actions and procedure verification were implemented. During the second phase (2004) 11 out of 15 services fulfilled the performance criteria. This intercomparison shows that there has been improvement in the second phase and most participants demonstrated a satisfactory performance of the quantity tested.

Body Burden↗

PubMed2003

Present and future activities of the IAEA on internal dosimetry: lessons learned from international intercomparisons.

The International Atomic Energy Agency (IAEA) conducts safety activities to support the assessment of occupational exposure due to intakes of radionuclides; a comprehensive set of safety documents will soon be completed. In recent years, extensive improvements in measurement techniques, phantoms and computational tools have been made. Thus, it is important for laboratories involved in internal dosimetry to undergo performance testing procedures to demonstrate the correctness of the methods applied and also to determine the consistency of their results with those obtained by other laboratories. Several intercomparisons were organised, and they revealed significant differences among laboratories in their approaches, methods and assumptions, and consequently in their results. This paper presents the current and future IAEA activities in support of assessment of occupational exposure due to intakes of radionuclides in the IAEA Member States, as well as the lessons learned from several intercomparison exercises in the last 5 years.

Benchmarking↗

PubMed2001

Quality assurance systems for individual monitoring services.

The International Basic Safety Standards for Protection Against Ionizing Radiation and for the Safety of Radiation Sources (BSS) require, inter alia, the establishment and implementation of quality assurance programmes to ensure that protection and safety requirements are met. The findings and conclusions of the International Conference on Topical Issues in Nuclear and Radiation Safety held in Vienna in 1998 includes, among others, the following recommendation concerning occupational radiation protection: The BSS require a quality assurance (QA) programme to be established as part of radiological protection. Extensive guidance for the development of a QA system is given in reports of ISO and IEC, but further guidance is needed on the interpretation and implementation of these standards. This paper is focused on the available international standards on quality assurance and on the work the IAEA is currently carrying out for their implementation in radiation monitoring services.

Austria↗

PubMed2001

IAEA intercomparisons for individual monitoring of photon radiation 1987-1998.

In 1985 a technical committee set up by the IAEA formulated tasks to be performed in individual monitoring and recommended 'some type of personnel dosimetry activity'. Since 1987 several coordinated research projects have been performed within the Agency's Research Contract Programme concerning intercomparisons for individual monitoring. While the first intercomparison focused on the impact of the possible adoption of the new set of operational quantities introduced in ICRU Report 39 in 1985, later intercomparisons concentrated on the performance of personnel dosimetry services. In the last intercomparison, dosimetry services for nuclear power plants in IAEA Member States in Eastern Europe were given an opportunity to gain experience with the recommendations of the IAEA to use the operational quantity Hp(10). This paper analyses whether the important tasks formulated in 1985 were actually solved. It summarises the various intercomparisons carried out between 1987 and 1998 and highlights some results.

Air Pollutants, Radioactive↗

PubMed2001

IAEA Occupational Radiation Protection Programme.

The objective of the IAEA Occupational Protection Programme is to promote and assist in establishing an internationally harmonised approach for optimising occupational radiation protection. Guidance for IAEA Member States is provided through the hierarchical Safety Standards Series: Safety Fundamentals, Safety Requirements and Safety Guides. A set of three Safety Guides on occupational radiation protection has been published, jointly sponsored by the IAEA and the International Labour Office. Complementary advice, either topic specific or practice specific, is published as Safety Reports in other IAEA publications. In view of the technical difficulties associated with the introduction of the new radiation quantities for measurements and reporting, the IAEA assists its Member States by offering annual dosimetry intercomparisons. The purpose of this paper is to present the current and future IAEA activities in support of occupational radiation protection in the IAEA Member States.

Austria↗