Modification of a classical penning ion source operating mode for sub-femtoampere beams at the U-120M cyclotron

0495722 - ÚJF 2019 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Matlocha, Tomáš
Modification of a classical penning ion source operating mode for sub-femtoampere beams at the U-120M cyclotron.
AIP Conference Proceedings. Vol. 2011. Melville: AIP Publishing, 2018, č. článku 050023. ISBN 978-0-7354-1727-4. ISSN 0094-243X.
[17th International Conference on Ion Sources. Geneva (CH), 15.09.2017-20.09.2017]
Grant CEP: GA MŠMT LM2015056
Institucionální podpora: RVO:61389005
Klíčová slova: cyclotron U-120M * PIG source * ion source
Obor OECD: Nuclear physics

Detector R&D projects in particle physics and experiments in radio-biology require often very low intensity, stable beams with well controlled flux. Usual method to decrease beam intensity by collimators is usually not suitable since background radiation has to be kept as low as possible. This paper describes an internal cyclotron Penning ion source (PIG) modification which allowed to achieve sub-femtoampere beam intensities. Upgrade of the the PIG source power supply at the U-120M cyclotron allowed to move to a new working regime of the ion source and achieve proton fluxes as low as 25 p/s cm2 well on the edge of the common beam monitoring systems.
Trvalý link: http://hdl.handle.net/11104/0288652