PAC09 - List of Authors (Skoro, G.P.)

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Skoro, G.P.

Paper	Title	Page
WE6RFP039	Solid Target for a Neutrino Factory	2878
	G.P. Skoro Sheffield University, Sheffield J.J. Back University of Warwick, Coventry J.R.J. Bennett STFC/RAL/ISIS, Chilton, Didcot, Oxon S.J. Brooks STFC/RAL/ASTeC, Chilton, Didcot, Oxon C.J. Densham, T.R. Edgecock, P. Loveridge STFC/RAL, Chilton, Didcot, Oxon
	Funding: Science and Technology Facilities Council (United Kingdom) 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.

Paper

Title

Page

WE6RFP039

Solid Target for a Neutrino Factory

2878

G.P. Skoro
Sheffield University, Sheffield
J.J. Back
University of Warwick, Coventry
J.R.J. Bennett
STFC/RAL/ISIS, Chilton, Didcot, Oxon
S.J. Brooks
STFC/RAL/ASTeC, Chilton, Didcot, Oxon
C.J. Densham, T.R. Edgecock, P. Loveridge
STFC/RAL, Chilton, Didcot, Oxon

Funding: Science and Technology Facilities Council (United Kingdom)

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.