RuPAC2018 - List of Authors (Britvich, G.I.)

Paper	Title	Page
FRCAMH01	The Carbon Ion Beam Extraction Scheme From the U-70 Synchrotron for Radiobiological Researches	139
	A.V. Maximov, Y.M. Antipov, G.I. Britvich, S.V. Ivanov, V.A. Kalinin, G.V. Khitev, O.P. Lebedev, E.A. Ludmirsky, A.P. Soldatov IHEP, Moscow Region, Russia
	The carbon ion beam extraction scheme from the U-70 synchrotron of NRC "Kurchatov institute" - IHEP for radiobiological researches is presented. The double-step extraction scheme Piccioni-Wright is used. The beam extraction operates at magnetic field flat bottom of U-70 synchrotron with carbon ion energy 455 MeV/n. A technique to attain transversally uniform dose field and other operational results are also presented.
	Slides FRCAMH01 [1.978 MB]
DOI •	reference for this paper ※ https://doi.org/10.5072/JACoW-RuPAC2018-FRCAMH01
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WEPSB55	On the Formation of Induced Radioactivity on the U-70 Proton Accelerator
	Ja.N. Rascvetalov, G.I. Britvich, G.I. Krupny, M.A. Maslov, V.N. Peleshko, E.N. Savitskaya IHEP, Moscow Region, Russia
	Global induced radioactivity levels on the main ring of proton 70 GeV accelerator (U-70) were estimated. Modeling results of induced radioactivity accumulation on the typical particle canal downstream internal target by Monte Carlo method are given. The wide set of various material specimens was espoused during one U-70 run in vicinity of internal target and specific radioactivity of identified long-lived nuclides was measured. Decay curves of ambient dose and specific radioactivity were calculated and analyzed for all activated specimens. Some fragments of U-70 equipment from radioactive waste storage also were investigated and specific radioactivity of their long-lived nuclides were measured. Unexpectedly 44Ti with 60 years half-life was identified in some cooper and stainless steel fragments. Production cross sections of 44Ti (and other nuclides) on copper were evaluated after irradiation by 50 GeV protons. These data can be used to provide radiation safety when working with radioactive elements of accelerator equipment, as well as storing and disposing of radioactive waste.
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WEPSB57	A Study on Implementation of Multistripe Crystals to Protect the Septum-Magnets and to Generate the Gamma Radiation on the U-70 Accelerator	397
	A.A. Yanovich, A.G. Afonin, E.V. Barnov, G.I. Britvich, Y.A. Chesnokov, P.N. Chirkov, A.A. Durum, M.Yu. Kostin, I.S. Lobanov, V.A. Maisheev, I.V. Poluektov, S.F. Reshetnikov, Yu.E. Sandomirskiy, D.A. Savin IHEP, Moscow Region, Russia
	Funding: The work is supported by Russian Science Foundation (grant 17-12-01532). Recently started studies on the application of volume reflection of particles in crystals for the steering beams (for extraction and collimation of a circulating beam in accelerators). Volume reflection is more efficient than channeling, but requires amplification of the deflection angle by applying multicrystals. The report discusses two new applications of multicrystals made like multistripe structures: 1. The property of effective deflection of particle beam was used to protect the septum-magnets of the U-70 in the process of extraction of the proton beam with energy of 50 GeV. 2. The possibility of generation of gamma radiation was studied in the secondary electron beam with energy of 7 GeV. In both cases, promising preliminary data were obtained.
DOI •	reference for this paper ※ https://doi.org/10.5072/JACoW-RuPAC2018-WEPSB57
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

The Carbon Ion Beam Extraction Scheme From the U-70 Synchrotron for Radiobiological Researches

139

A.V. Maximov, Y.M. Antipov, G.I. Britvich, S.V. Ivanov, V.A. Kalinin, G.V. Khitev, O.P. Lebedev, E.A. Ludmirsky, A.P. Soldatov
IHEP, Moscow Region, Russia

The carbon ion beam extraction scheme from the U-70 synchrotron of NRC "Kurchatov institute" - IHEP for radiobiological researches is presented. The double-step extraction scheme Piccioni-Wright is used. The beam extraction operates at magnetic field flat bottom of U-70 synchrotron with carbon ion energy 455 MeV/n. A technique to attain transversally uniform dose field and other operational results are also presented.

Slides FRCAMH01 [1.978 MB]

DOI •

reference for this paper ※ https://doi.org/10.5072/JACoW-RuPAC2018-FRCAMH01

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB55

On the Formation of Induced Radioactivity on the U-70 Proton Accelerator

Ja.N. Rascvetalov, G.I. Britvich, G.I. Krupny, M.A. Maslov, V.N. Peleshko, E.N. Savitskaya
IHEP, Moscow Region, Russia

Global induced radioactivity levels on the main ring of proton 70 GeV accelerator (U-70) were estimated. Modeling results of induced radioactivity accumulation on the typical particle canal downstream internal target by Monte Carlo method are given. The wide set of various material specimens was espoused during one U-70 run in vicinity of internal target and specific radioactivity of identified long-lived nuclides was measured. Decay curves of ambient dose and specific radioactivity were calculated and analyzed for all activated specimens. Some fragments of U-70 equipment from radioactive waste storage also were investigated and specific radioactivity of their long-lived nuclides were measured. Unexpectedly 44Ti with 60 years half-life was identified in some cooper and stainless steel fragments. Production cross sections of 44Ti (and other nuclides) on copper were evaluated after irradiation by 50 GeV protons. These data can be used to provide radiation safety when working with radioactive elements of accelerator equipment, as well as storing and disposing of radioactive waste.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB57

A Study on Implementation of Multistripe Crystals to Protect the Septum-Magnets and to Generate the Gamma Radiation on the U-70 Accelerator

397

A.A. Yanovich, A.G. Afonin, E.V. Barnov, G.I. Britvich, Y.A. Chesnokov, P.N. Chirkov, A.A. Durum, M.Yu. Kostin, I.S. Lobanov, V.A. Maisheev, I.V. Poluektov, S.F. Reshetnikov, Yu.E. Sandomirskiy, D.A. Savin
IHEP, Moscow Region, Russia

Funding: The work is supported by Russian Science Foundation (grant 17-12-01532).
Recently started studies on the application of volume reflection of particles in crystals for the steering beams (for extraction and collimation of a circulating beam in accelerators). Volume reflection is more efficient than channeling, but requires amplification of the deflection angle by applying multicrystals. The report discusses two new applications of multicrystals made like multistripe structures: 1. The property of effective deflection of particle beam was used to protect the septum-magnets of the U-70 in the process of extraction of the proton beam with energy of 50 GeV. 2. The possibility of generation of gamma radiation was studied in the secondary electron beam with energy of 7 GeV. In both cases, promising preliminary data were obtained.

DOI •

reference for this paper ※ https://doi.org/10.5072/JACoW-RuPAC2018-WEPSB57

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)