Special features of welding the casings of small ionizing radiation sources

The use of ionizing radiation processing technologies has proven to be one of the most versatile ways to prepare a wide range of membranes with specific tailored functionalities, thus enabling them to be used in a variety of industrial, environmental, and biological applications. The general principle of this clean and environmental friendly technique is the use of various types of commercially available high-energy radiation sources, like 60Co, X-ray, and electron beam to initiate energy-controlled processes of free-radical polymerization or copolymerization, leading to the production of functionalized, flexible, structured membranes or to the incorporation of functional groups within a matrix composed by a low-cost polymer film. The present manuscript describes the state of the art of using ionizing radiation for the preparation and functionalization of polymer-based membranes for biomedical and environmental applications.

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DETERMINATION OF THE TOTAL EFFECTIVE DOSE OF EXTERNAL AND INTERNAL EXPOSURE BY DIFFERENT IONIZING RADIATION SOURCES

Radiation Protection Dosimetry ◽

10.1093/rpd/ncz170 ◽

2019 ◽

Vol 187 (1) ◽

pp. 129-137

Author(s):

V A Kudryashev ◽

D S Kim

Keyword(s):

Ionizing Radiation ◽

Effective Dose ◽

Radiation Risk ◽

Neutron Radiation ◽

Radiation Shielding ◽

The Body ◽

Internal Exposure ◽

Complex Method ◽

Radiation Sources ◽

Total Effective Dose

Abstract The purpose of the research is to develop an integrated technique for determining the effective dose (E) of external and internal exposure by different sources of ionizing radiation. The proposing technique for determining the total effective dose is based on three methods of calculation. The first one is multiplying the value of the individual dose equivalent $H_{p}(10)$ by the factor of 0.642 to account for radiation shielding by various organs and tissues and its backscattering. The second method is multiplying $H_{p}(10)$ by the conversion factor of air kerma in free air in a plate phantom, depending on the photon energy. The third method is multiplying $H_{p}(10)$ by the sum of the radiosensitivity coefficients of various organs and tissues. As a result of research, a complex method was developed for determining the total effective dose, composed of doses of cosmic radiation, external gamma-, beta- and neutron radiation, internal exposure from radionuclides, including CDP of radon and thoron, entering the body through the organs of digestion and respiration. The proposed technique for determining the total effective dose allows one to take into account the comprehensive effect of ionizing radiation sources on a person and to obtain a more accurate measure of radiation risk than the existing methods provide.

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Subterranean burial of spent ionizing radiation sources

Soviet Atomic Energy ◽

10.1007/bf01123692 ◽

1989 ◽

Vol 66 (3) ◽

pp. 225-227

Author(s):

M. B. Kachalov ◽

V. A. Kashcheev ◽

M. I. Ozhovan ◽

P. P. Polu�ktov ◽

A. S. Polyakov ◽

...

Keyword(s):

Ionizing Radiation ◽

Radiation Sources

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Organization of personneindividual protection conducting diagnostic and treatment procedures using radionuclide and generating sources of ionizing radiation

Medical Radiology and radiation safety ◽

10.12737/article_59f2f93b8906c4.36666437 ◽

2017 ◽

Vol 62 (5) ◽

pp. 28-30

Author(s):

В. Рубцов ◽

V. Rubcov ◽

В. Клочков ◽

V. Klochkov ◽

А. Нефедов ◽

...

Keyword(s):

Nuclear Medicine ◽

Ionizing Radiation ◽

Personal Protective Equipment ◽

Medical Staff ◽

High Performance ◽

Protective Equipment ◽

Study Guide ◽

Personal Protection ◽

Radiation Sources ◽

Treatment Procedures

Purpose: To improve radiation safety of medical staff and patients during diagnostic and treatment procedures with using of radionuclide radiation sources. Materials and methods: Staff working conditions have been analyzed and the potential for using of various personal protective equipment has been assessed based on the developed framework of personal protection of medical staff and patients at nuclear medicine centers. In accordance with methods described in the current Russian standards, specimens of personal protective equipment manufactured at Russian industrial plants and suitable for use by medical staff and patients at nuclear medicine centers have been tested. Results: Results of laboratory tests of new advanced high-performance personal protective equipment of various purposes for protection of medical staff and patients during diagnostic and treatment procedures with using of radionuclide radiation sources are provided. Training and information documents and guidelines have been developed, including “Study guide on personal protection during diagnostic and treatment procedures with using of radionuclides and ionizing radiation sources” for various departments of the Institute of Continuing Vocational Education, State Research Center – Burnasyan Federal Medical Biophysical Center of the FMBA of Russia, and “Guidelines on personal protection of medical staff and patients during diagnostic and treatment procedures with using of radionuclides and ionizing radiation sources”. Conclusion: Study guide and Guidelines on personal protection of medical staff and patients at nuclear medicine centers during diagnostic and treatment procedures with using of radionuclide radiation sources, as well as the draft of the Standard guidelines on delivery of free personal protective equipment to medical staff have been developed based on the results of work and studies.

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