Particle production and energy deposition studies for the neutrino factory target station

Back, J. J.; Densham, C.; Edgecock, R.; Prior, G.

doi:10.1103/physrevstab.16.021001

Cited by 11 publications

(7 citation statements)

References 7 publications

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“…The main challenge in the design of a multi-MW neutrino beam facility is to build a proton target that could dissipate large amounts of deposited energy, withstand the strong pressure waves created by short beam pulses, and survive long-term effects of radiation damage. Simulation studies of the pion production and energy deposition in different targets (liquid mercury jet, tungsten powder jet, solid tungsten bars and gallium liquid jet) are presented in [22]. Those studies also provided estimates of the amount of concrete shielding needed to protect the environment from the high radiation generated by each target.…”

Section: Neutrino Flavor Oscillations and Leptonic Cp Violationmentioning

confidence: 99%

A Multi-MW Proton/Electron Facility at KEK

Belusević¹

2017

JAMP

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The main "bottleneck" limiting the beam power in circular machines is caused by space charge effects that produce beam instabilities. To increase maximally the beam power of a "proton driver", it is proposed to build a facility consisting solely of a 2.5 GeV injector linac (PI) and a 20 GeV pulsed superconducting linac (SCL). Such a facility could be constructed using the existing KEK accelerator infrastructure. The PI, based on the European Spallation Source (ESS) linac, would serve both as an injector to the SCL and a source of proton beams that could be used to copiously produce, e.g., muons and "cold" neutrons. Protons accelerated by the SCL would be transferred through the KEK Tristan ring in order to create neutrino, kaon and muon beams for fixed-target experiments. At a later stage, a 70 GeV proton synchrotron could be installed inside the Tristan ring. The SCL, comprising 1.3 GHz ILC-type rf cavities, could also accelerate polarized or unpolarized electron beams. After acceleration, electrons could be used to produce polarized positrons, or may traverse an XFEL undulator.

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Section: Neutrino Flavor Oscillations and Leptonic Cp Violationmentioning

confidence: 99%

A Multi-MW Proton/Electron Facility at KEK

Belusević¹

2017

JAMP

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“…Other possible proton drivers include the SPL at CERN or a Fixed Field Alternating Gradient (FFAG) at a green field site [15]. The baseline target [16] consists of a liquid mercury jet inside a 20 T capture solenoid field (Figure 1, Right). The MERIT experiment [17] has provided a proof-of-principle of the mercury jet target.…”

Section: Proton Driver and Targetmentioning

confidence: 99%

Final results from IDS-NF study

Soler¹

2015

Proceedings of 16th International Workshop on Neutrino Factories and Future Neutrino Beam Facilities — PoS(NUFACT2014)

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Neutrino Factories are facilities that produce neutrino beams with well-defined flavour content and energy spectra, from the decay of intense, high-energy, stored muons, to search for CP violation in the neutrino sector. The International Design Study for the Neutrino Factory (the IDS-NF) is providing a Reference Design Report (RDR) for such facilities, optimised for the high values of θ 13. The accelerator facility will deliver 10 21 muon decays per year from 10 GeV stored muon beams. The straight sections of the storage ring point to a 100 kton Magnetised Iron Neutrino Detector (MIND) at a distance of ∼ 2000 km from the source. The accuracy in the value of δ CP that a Neutrino Factory can achieve is between 4 • and 5 • and the δ CP coverage is between 85% and 90%, both of which are unrivalled by other future facilities. 16th International Workshop on Neutrino Factories and Future Neutrino Beam Facilities-NUFACT2014,

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“…The current design of the target system for a muon collider or neutrino factory based on the machine designs developed by the International Design Study for a neutrino factory [12,13] has a liquid mercury jet for a target within a 20 T solenoid field. A 4 MW proton beam (about 3 × 10 15 8 GeV protons per second) intersects the mercury jet, producing low energy pions.…”

Section: A Target Systemmentioning

confidence: 99%

Optimized capture section for a muon accelerator front end

Sayed¹,

Berg²

2014

Phys. Rev. ST Accel. Beams

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In a muon accelerator complex, a target is bombarded by a multi-MW proton beam to produce pions, which decay into the muons which are thereafter bunched, cooled, and accelerated. The front end of the complex captures those pions, then manipulates their phase space, and that of the muons into which they decay, to maximize the number of muons within the acceptance of the downstream systems. The secondary pion beam produced at the target is captured by a high field target solenoid that tapers down to a constant field throughout the rest of the front end. In this study we enhance the useful muon flux by introducing a new design of the longitudinal profile of the solenoid field at, and downstream of, the target. We find that the useful muon flux exiting the front end is larger when the field at the target is higher, the distance over which the field tapers down is shorter, and the field at the end of the taper is higher. We describe how the solenoid field profile impacts the transverse and longitudinal phase space of the beam and thereby leads to these dependencies.

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Particle production and energy deposition studies for the neutrino factory target station

Cited by 11 publications

References 7 publications

A Multi-MW Proton/Electron Facility at KEK

A Multi-MW Proton/Electron Facility at KEK

Final results from IDS-NF study

Optimized capture section for a muon accelerator front end

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