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Properties of the WASA pellet target and a stored intermediate-energy beam
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
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2007 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 587, no 2-3, 178-187 p.Article in journal (Refereed) Published
Abstract [en]

Experimental data from the reaction close to threshold have been used to investigate time-dependent properties of the WASA pellet target and the stored beam of 892.8 MeV protons in the CELSIUS accelerator. The detection of 3He ions in solid-state detectors provides an excellent almost background free trigger for η production. Pellet interactions with the surrounding material and with the beam lead to evaporation of deuterium gas into the beam pipe. Approximately 30% of the registered η decay events are due to interactions in deuterium gas outside the pellets. Due to beam–target interaction the beam is transversely heated and appears to acquire a component of a slightly lower energy.

Place, publisher, year, edition, pages
2007. Vol. 587, no 2-3, 178-187 p.
Keyword [en]
Storage ring, Internal target, Pellet target, Beam–target interaction
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-16895DOI: 10.1016/j.nima.2007.12.040ISI: 000255238600003OAI: oai:DiVA.org:uu-16895DiVA: diva2:44666
Available from: 2008-06-16 Created: 2008-06-16 Last updated: 2017-12-08

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Geren, L.Kupsc, Andrzej

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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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