Proposal for the continuation of generic high power target studies

Lead Research Organisation: University of Sheffield
Department Name: Physics and Astronomy

Abstract

Particle accelerators are used to propel charged particles to large speeds, often very close to the speed of light, thereby giving them a high energy. They range in size from very small, e.g. a cathode ray tube used in older televisions, to very large, e.g. the Large Hadron Collider at CERN. They are also used for a range of applications, from treating cancer to studying the fundamental consistuents of matter. Usually the particles accelerated already exist in large quantities in normal matter, in particular protons and electrons. However, if uncharged particles or those that do not normally exist are required, these have to be created or released from matter. This is usually done by firing protons into some form of material, which we call a target, to produce these secondary particles.

There is an ever increasing demand for more intense secondary beams. This in turn requires more intense, or higher power, proton beams. This is a challenge for both the accelerator and the target, but increasingly it is the target that is becoming the limiting factor in the beam power that can be used.

In this project, we are using our existing expertise in the design, construction and operation of high power targets to study them for a range of applications. These include the production of neutron beams for treating cancer, producing electricity, studying matter and producing radioactive tracers, creating neutrino beams to study the properties of these elusive particles and producing muon beams to look for extremely rare, but very important, processes. Although the targets used for these activities differ, they all have similar problems and we will study these in a generic manner. In each case, we will be pushing beyond the boundaries of what is currently possible with existing target technology.

Publications

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Bogomilov M (2014) Neutrino factory in Physical Review Special Topics - Accelerators and Beams

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Ahmad A (2014) Generic study on the design and operation of high power targets in Physical Review Special Topics - Accelerators and Beams

 
Description Improved modelling of neutron production and target cooling for ISIS upgrades.
Exploitation Route Results and models have been passed on to the ISIS team.
Sectors Other

 
Description PASI 
Organisation Science and Technologies Facilities Council (STFC)
Department ISIS Neutron and Muon Source
Country United Kingdom 
Sector Academic/University 
PI Contribution Calculations and modelling of neutron production, cooling and activation of components.
Collaborator Contribution Design studies for target station upgrades. Benchmark calculations.
Impact Contributions to ISIS target upgrade programme.
Start Year 2012
 
Description UK Neutrino factory target 
Organisation Rutherford Appleton Laboratory
Department Particle Physics Department
Country United Kingdom 
Sector Public 
PI Contribution Intellectual input; management of experimental work; simulation studies; analysis of data
Collaborator Contribution Simulation studies
Impact Publications on high temperature transient properties of tungsten and tantalum
 
Description UK Neutrino factory target 
Organisation University of Warwick
Department Department of Physics
Country United Kingdom 
Sector Academic/University 
PI Contribution Intellectual input; management of experimental work; simulation studies; analysis of data
Collaborator Contribution Simulation studies
Impact Publications on high temperature transient properties of tungsten and tantalum
 
Description School visits 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? Yes
Type Of Presentation Keynote/Invited Speaker
Geographic Reach Regional
Primary Audience Schools
Results and Impact Multiple talks, to groups of 20-30 sixth form pupils.
Questions and discussions followed.
Roughly 8-10 such talks per year in recent years.

Further invitations
Year(s) Of Engagement Activity 2008,2010,2011,2012,2013,2014,2015,2016,2017,2018