Original title: Ultra-low intensity proton beams for radiation response related experiments at the U-120M cyclotron
Authors: Matlocha, Tomáš ; Křížek, Filip
Document type: Papers
Conference/Event: ŠIMÁNĚ 2017, Praha (CZ), 20181106
Year: 2018
Language: eng
Abstract: The U-120M cyclotron at the Nuclear Physics Institute (NPI) of the Czech Academy of Sciences in Rez is used for radiation hardness tests of electronics for high-energy physics experiments. These tests are usually carried out with proton fluxes of the order of 105–109 proton cm-2 s -1. Some tests done for the upgrade of the Inner Tracking System of the ALICE experiment at CERN, however, required proton beam intensities several orders of magnitude lower. This paper presents a method which has been developed to achieve the proton beam flux of the order of 1 proton cm-2 s -1. The method is mainly based on reduction of the discharge current in the cyclotron internal Penning type ion source. Influence of this new operation mode on the lifetime of ion source cathodes is discussed.
Keywords: cyclotron irraditation facility; negative hydrogen yield resonance; penning ion source; radiation hardness tests; ultra-low intensity proton flux
Project no.: LM2015056 (CEP), LM2015058 (CEP)
Funding provider: GA MŠk, GA MŠk
Host item entry: Acta Polytechnica CTU Proceedings, ISBN 978-80-01-06426-9, ISSN 2336-5382

Institution: Nuclear Physics Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0293203

Permalink: http://www.nusl.cz/ntk/nusl-391595


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Research > Institutes ASCR > Nuclear Physics Institute
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