Golov K. Substantiation of the parameters and the efficiency of x-ray structures of composite materials based on phosphogypsum

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0411U002890

Applicant for

Specialization

  • 05.26.01 - Охорона праці

10-06-2011

Specialized Academic Board

Д 08.188.01

Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine

Essay

Object of study - especially the process of personnel protection against X-ray and gamma-ray structures of composite material on the basis of phosphogypsum. Purpose - to justify the parameters and the efficiency of X-ray protective structures made of composite material on the basis of phosphogypsum to improve radiation protection (RP) of X-rays. We used a complex method of research, including analysis and synthesis of published data to justify the appropriateness of the composite material on the basis of phosphogypsum to create X-ray protective structures, development of a phenomenological model and justification for it based on the possibility of making high X-ray protective properties of the composite material on the basis of phosphogypsum, which provides the creation of highly effective protective structures. The scientific value of the work is to establish the dependence of the level of personnel protection against X-radiation-tions of the construction of the composite material on the basis of phosphogypsum from the concentration of rare earth elements in it, the material density and thickness of the structure. Scientific novelty of the results: for the first time found that the greatest excess of the protection of personnel from the X-ray structures with composition-onnym materials based on the level of protection of phosphogypsum, reg-lamentiruemym the Bouguer is achieved at a concentration of rare-earth elements in a composite material in the range of 28 - 33% of its mass. The implementation of the work lies in the positive result of tests developed by the construction of a composite material based on rare-earth phosphogypsum: when irradiated with X-rays with an anode voltage of 100 kV in a state institution "City Clinical Hospital № 18" irradiated with gamma radiation from 241Am 60 keV energy in Special-Emergency Combine "Radon" .

Files

Similar theses