Segmented beryllium target for a 2 MW super beam facility SEGMENTED BERYLLIUM TARGET for A 2 MW SUPER ... T. DAVENNE et al.

4Citations
Citations of this article
9Readers
Mendeley users who have this article in their library.

Abstract

The Long Baseline Neutrino Facility (LBNF, formerly the Long Baseline Neutrino Experiment) is under design as a next generation neutrino oscillation experiment, with primary objectives to search for CP violation in the leptonic sector, to determine the neutrino mass hierarchy and to provide a precise measurement of θ23. The facility will generate a neutrino beam at Fermilab by the interaction of a proton beam with a target material. At the ultimate anticipated proton beam power of 2.3 MW the target material must dissipate a heat load of between 10 and 25 kW depending on the target size. This paper presents a target concept based on an array of spheres and compares it to a cylindrical monolithic target such as that which currently operates at the T2K facility. Simulation results show that the proposed technology offers efficient cooling and lower stresses whilst delivering a neutrino production comparable with that of a conventional solid cylindrical target.

Figures

  • TABLE I. Beam parameters at ultimate planned intensity.
  • FIG. 1. Maximum Von Mises stress (including thermal and inertial components) in beryllium cylinders as a function of level of beam misalignment.
  • TABLE II. Results from Monte-Carlo FLUKA simulations showing range of energy deposition in a beryllium target.
  • FIG. 2. Maximum Von Mises stress (including thermal and inertial components) in a beryllium cylinder and sphere both of the same diameter.
  • FIG. 3. Spherical array target for heat transfer tests.
  • FIG. 4. Schematic diagram of proposed super beam spherical array target.
  • FIG. 5. Maximum Von Mises stress (including thermal and inertial components) across studied parameter space with a 2σ off-center beam (worst case design point as seen in Fig. 1).
  • FIG. 6. End deflection of a 1 m long 21 mm diameter cantilevered beryllium cylinder with 2.3 MW beam, applied with an offset of 2σ=7 mm beam offset.

References Powered by Scopus

The T2K experiment

695Citations
176Readers

This article is free to access.

This article is free to access.

64Citations
55Readers
Get full text

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Davenne, T., Caretta, O., Densham, C., Fitton, M., Loveridge, P., Hurh, P., … Papadimitriou, V. (2015). Segmented beryllium target for a 2 MW super beam facility SEGMENTED BERYLLIUM TARGET for A 2 MW SUPER ... T. DAVENNE et al. Physical Review Special Topics - Accelerators and Beams, 18(9). https://doi.org/10.1103/PhysRevSTAB.18.091003

Readers over time

‘15‘18‘20‘2302468

Readers' Seniority

Tooltip

Researcher 4

57%

PhD / Post grad / Masters / Doc 3

43%

Readers' Discipline

Tooltip

Materials Science 5

83%

Business, Management and Accounting 1

17%

Save time finding and organizing research with Mendeley

Sign up for free
0