RuPAC2016 - List of Authors (Novokshonov, A.I.)

Paper	Title	Page
THPSC048	Measurement of Gamma Beams Profile by Cherenkov Radiation in Fibers	638
	A.V. Vukolov, A.I. Novokshonov, A. Potylitsyn, E. Shuvalov, S.R. Uglov TPU, Tomsk, Russia
	Funding: This work was partially supported by the Russian Ministry of Education and Science within the program 'Nauka' Grant 3.709.2014/K and by RFBR Grant 15-52-50028-YaF_a. Results of gamma beam profile experimental investigations by measuring of Cherenkov radiation* generated in a fiber with 0.6 mm thickness and in a glass rod with 5 mm diameter are presented. These experiments were carried out on bremsstrahlung beam of the linear accelerator 'Philips SL-75' with 6 MeV energy and 4 Gr/min dose rate at 1 m distance. In works and * authors have showed feasibility of Cherenkov radiation applying for high energy beam diagnostics. In our work the Cherenkov radiation yield dependence on the fiber orientation relative to the beam axis was investigated and showed that the maximal light yield corresponds to the angle between fiber and beam axes closed to the Cherenkov angle. When dose rate is higher than 1 Gr/min at 1 m distance one can register a light yield for the fiber orientation even less than Cherenkov angle. We suppose that the observed effect is connected with generating of electromagnetic shower by initial photons. Proposed technique of bremsstrahlung and electron **** beams profile measurements differs from well-known techniques based on ionization chambers due to its insensitive to low energy part of the bremsstrahlung spectrum and to undesirable background. Using this technique for beam profile scanning it is possible to construct compact and noise insensitive device relative to the well-known systems. It is also possible to reach submillimeter resolution with this device. * Jelley J V, Cherenkov Radiation and its Application, 1958, Pergamon Press. Wulf F, Korfer M, Proc. of DIPAC 2009, p. 411. * A. Murokh, R. Agustsson etc., Proc of IPAC2012, p.996. **** A V Vukolov, A I Novokshonov, A P Potylitsyn, S R Uglov, Proc of RREPS-15, 2015, Sain-Petersburg
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Paper

Title

Page

Measurement of Gamma Beams Profile by Cherenkov Radiation in Fibers

638

A.V. Vukolov, A.I. Novokshonov, A. Potylitsyn, E. Shuvalov, S.R. Uglov
TPU, Tomsk, Russia

Funding: This work was partially supported by the Russian Ministry of Education and Science within the program 'Nauka' Grant 3.709.2014/K and by RFBR Grant 15-52-50028-YaF_a.
Results of gamma beam profile experimental investigations by measuring of Cherenkov radiation* generated in a fiber with 0.6 mm thickness and in a glass rod with 5 mm diameter are presented. These experiments were carried out on bremsstrahlung beam of the linear accelerator 'Philips SL-75' with 6 MeV energy and 4 Gr/min dose rate at 1 m distance. In works ** and *** authors have showed feasibility of Cherenkov radiation applying for high energy beam diagnostics. In our work the Cherenkov radiation yield dependence on the fiber orientation relative to the beam axis was investigated and showed that the maximal light yield corresponds to the angle between fiber and beam axes closed to the Cherenkov angle. When dose rate is higher than 1 Gr/min at 1 m distance one can register a light yield for the fiber orientation even less than Cherenkov angle. We suppose that the observed effect is connected with generating of electromagnetic shower by initial photons. Proposed technique of bremsstrahlung and electron **** beams profile measurements differs from well-known techniques based on ionization chambers due to its insensitive to low energy part of the bremsstrahlung spectrum and to undesirable background. Using this technique for beam profile scanning it is possible to construct compact and noise insensitive device relative to the well-known systems. It is also possible to reach submillimeter resolution with this device.
* Jelley J V, Cherenkov Radiation and its Application, 1958, Pergamon Press.
** Wulf F, Korfer M, Proc. of DIPAC 2009, p. 411.
*** A. Murokh, R. Agustsson etc., Proc of IPAC2012, p.996.
**** A V Vukolov, A I Novokshonov, A P Potylitsyn, S R Uglov, Proc of RREPS-15, 2015, Sain-Petersburg

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