Medical Radiology and Radiation Safety. 2021. Vol. 66. № 3. С. 62-67

O.G. Kashirina, L.V. Timofeev, V.G. Likhvantseva

Radiation Protection of Personnel in Contact Radiation Therapy in Ophthalmology

A.I. Burnasyan Federal Medical Biophysical Center, Moscow, Russia

Contact person: Kashirina O.G. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

Purpose: To ensure radiation safety of medical staff personal protective equipment  (PPE).

Material and methods: In order to not make assumptions of possible protective materials optical distortion, estimated the dependence of light transmission in the wavelength range 330–660 nm leaded glass brands of TF-1 and TF-5, as well as the intensity of glow glasses when exposed to light and X-rays.

Results: We trace the degree of browning and the nature of the recovery of transparency of glass after irradiation. To determine the optimum thickness of lead glass for eyewear experimentally evaluated attenuation of X-rays with energy efficiency 30 and 80 keV. Lead equivalent values for lead glass, was determined so for Eeff ~ 20 keV at a multiplicity of weakening k = 10 lead glass brand TF-5 thickness 2.0 mm equivalent 0.8 mm Pb, etc. For the possible use of other additives in the window shows the curves of the attenuation of photon radiation radionuclide 241Am (20–60 кeV) filters from 9Be, 26Al, 56Fe, 64Cu, 99Mo, 112Cd, 184W, 207Pb

Conclusion: Possible  introduction of new dose limits for the lens of the eye can be successful only in case of both existing and newly developed PPE. To reduce the impact of domestic lead glass radiation can be used for staff in the form of screens and glasses.

Key words:оphthalmology, contact radiotherapy, personnel, personal protective equipment

For citation: Kashirina OG, Timofeev LV, Likhvantseva VG. Radiation Protection of Personnel in Contact Radiation Therapy in Ophthalmology. Medical Radiology and Radiation Safety 2021;66(3):62-67.

DOI: 10.12737/1024-6177-2021-66-3-62-67

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Conflict of interest. The authors declare no conflict of interest.

Financing. The study had no sponsorship.

Contribution. Article was prepared with equal participation of the authors.

Article received: 23.12.2020. 

Accepted for publication: 20.01.2021.