Škoro, G.P., Back, J. J., Bennett, J.R.J., Brooks, S.J., Densham, C.J., Edgecock, R. and Loveridge, P. (2009) Solid Target for a Neutrino Factory. In: Proceedings of the 23rd Particle Accelerator Conference. PAC09 . JACoW, Vancouver, British Columbia, Canada, pp. 2878-2880.
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Available under License Creative Commons Attribution.
The UK programme of high power target developments for a Neutrino Factory is centred on the study of high-Z materials (tungsten, tantalum). A description of lifetime shock tests on candidate materials is given as a part of the research into a solid target solution. A fast high current pulse is applied to a thin wire of the sample material and the lifetime measured from the number of pulses before failure. These measurements are made at temperatures up to ~2000 K. The stress on the wire is calculated using the LS-DYNA code and compared to the stress expected in the real Neutrino Factory target. It has been found that tantalum is too weak at these temperatures but a tungsten wire has reached over 26 million pulses (equivalent to more than ten years of operation at the Neutrino Factory). Measurements of the surface velocity of the wire using a laser interferometry system (VISAR) are in progress, which, combined with LS-DYNA modelling, will allow the evaluation of the constitutive equations of the material. An account is given of the optimisation of secondary pion production and capture in a Neutrino Factory and of the latest solid target engineering ideas.
|Item Type:||Book Chapter|
|Subjects:||Q Science > QC Physics|
|Schools:||School of Applied Sciences|
|Depositing User:||Thomas Edgecock|
|Date Deposited:||15 Jul 2014 14:26|
|Last Modified:||03 Dec 2016 06:45|
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