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Hybrid positron-source scheme intended for the SPARC accelerator facility at the LNF


A hybrid positron-source scheme based on an electron beam of the Sorgente Pulsata e Amplificata di Radiazione Coerente test facility installed at the Laboratori Nazionali di Frascati (Frascati, Italy) is proposed. In the case of a thin (0.1-mm-thick) amorphous converter, the positron yields per primary electron are compared at positron energies of 1–3 MeV under bremsstrahlung generation and (110)-plane channeling conditions. The radiation of 200-MeV electrons (200 MeV is the parameter of the SPARC accelerator at the LNF) channeled in a 10-µm-thick tungsten radiator is demonstrated to create positron yields of 104–105 s–1 in a 0.1-mm-thick W converter.

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Correspondence to T. A. Tukhfatullin.

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Original Russian Text © S.B. Dabagov, S.V. Abdrashitov, O.V. Bogdanov, Yu.L. Pivovarov, T.A. Tukhfatullin, 2016, published in Poverkhnost’. Rentgenovskie, Sinkhrotronnye i Neitronnye Issledovaniya, 2016, No. 2, pp. 100–107.

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Dabagov, S.B., Abdrashitov, S.V., Bogdanov, O.V. et al. Hybrid positron-source scheme intended for the SPARC accelerator facility at the LNF. J. Synch. Investig. 10, 254–260 (2016).

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  • channeling radiation
  • positron source