Hybrid scheme of positron source at SPARC-LAB LNF facility

Abstract

The hybrid scheme of the positron source for SPARC-LAB LNF facility (Frascati, Italy) is proposed. The comparison of the positron yield in a thin amorphous W converter of 0.1 mm thickness produced by bremsstrahlung, by axial (1 0 0) and planar (1 1 0) channeling radiations in a W crystal is performed for the positron energy range of 1 ÷ 3 MeV. It is shown that the radiation from 200 MeV electrons (parameters of SPARC-LAB LNF Frascati) in a 10 μm W crystal can produce positrons in the radiator of 0.1 mm thickness with the rate of 10-10² s^-1 at planar channeling, of 10²-10³ s^-1 at bremsstrahlung and of 10³-10⁴ s^-1 at axial channeling.

Original language	English
Pages (from-to)	65-68
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	355
DOIs	https://doi.org/10.1016/j.nimb.2015.03.091
Publication status	Published - 28 Jul 2015

Keywords

Channeling radiation
Hybrid scheme
Positron photoproduction

ASJC Scopus subject areas

Instrumentation
Nuclear and High Energy Physics

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10.1016/j.nimb.2015.03.091

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@article{670f7277acd64a9c9959183d92fa124f,

title = "Hybrid scheme of positron source at SPARC-LAB LNF facility",

abstract = "The hybrid scheme of the positron source for SPARC-LAB LNF facility (Frascati, Italy) is proposed. The comparison of the positron yield in a thin amorphous W converter of 0.1 mm thickness produced by bremsstrahlung, by axial (1 0 0) and planar (1 1 0) channeling radiations in a W crystal is performed for the positron energy range of 1 ÷ 3 MeV. It is shown that the radiation from 200 MeV electrons (parameters of SPARC-LAB LNF Frascati) in a 10 μm W crystal can produce positrons in the radiator of 0.1 mm thickness with the rate of 10-102 s-1 at planar channeling, of 102-103 s-1 at bremsstrahlung and of 103-104 s-1 at axial channeling.",

keywords = "Channeling radiation, Hybrid scheme, Positron photoproduction",

author = "Abdrashitov, {S. V.} and Bogdanov, {O. V.} and Dabagov, {S. B.} and Pivovarov, {Yu. L.} and Tukhfatullin, {T. A.}",

year = "2015",

month = jul,

day = "28",

doi = "10.1016/j.nimb.2015.03.091",

language = "English",

volume = "355",

pages = "65--68",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier",

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TY - JOUR

T1 - Hybrid scheme of positron source at SPARC-LAB LNF facility

AU - Abdrashitov, S. V.

AU - Bogdanov, O. V.

AU - Dabagov, S. B.

AU - Pivovarov, Yu. L.

AU - Tukhfatullin, T. A.

PY - 2015/7/28

Y1 - 2015/7/28

N2 - The hybrid scheme of the positron source for SPARC-LAB LNF facility (Frascati, Italy) is proposed. The comparison of the positron yield in a thin amorphous W converter of 0.1 mm thickness produced by bremsstrahlung, by axial (1 0 0) and planar (1 1 0) channeling radiations in a W crystal is performed for the positron energy range of 1 ÷ 3 MeV. It is shown that the radiation from 200 MeV electrons (parameters of SPARC-LAB LNF Frascati) in a 10 μm W crystal can produce positrons in the radiator of 0.1 mm thickness with the rate of 10-102 s-1 at planar channeling, of 102-103 s-1 at bremsstrahlung and of 103-104 s-1 at axial channeling.

AB - The hybrid scheme of the positron source for SPARC-LAB LNF facility (Frascati, Italy) is proposed. The comparison of the positron yield in a thin amorphous W converter of 0.1 mm thickness produced by bremsstrahlung, by axial (1 0 0) and planar (1 1 0) channeling radiations in a W crystal is performed for the positron energy range of 1 ÷ 3 MeV. It is shown that the radiation from 200 MeV electrons (parameters of SPARC-LAB LNF Frascati) in a 10 μm W crystal can produce positrons in the radiator of 0.1 mm thickness with the rate of 10-102 s-1 at planar channeling, of 102-103 s-1 at bremsstrahlung and of 103-104 s-1 at axial channeling.

KW - Channeling radiation

KW - Hybrid scheme

KW - Positron photoproduction

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X