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Title: A FODO racetrack ring for nuSTORM: design and optimization

Abstract

Here, the goal of nuSTORM is to provide well-defined neutrino beams for precise measurements of neutrino cross-sections and oscillations. The nuSTORM decay ring is a compact racetrack storage ring with a circumference of ~ 480 m that incorporates large aperture (60 cm diameter) magnets. There are many challenges in the design. In order to incorporate the Orbit Combination section (OCS), used for injecting the pion beam into the ring, a dispersion suppressor is needed adjacent to the OCS . Concurrently, in order to maximize the number of useful muon decays, strong bending dipoles are needed in the arcs to minimize the arc length. These dipoles create strong chromatic effects, which need to be corrected by nonlinear sextupole elements in the ring. In this paper, a FODO racetrack ring design and its optimization using sextupolar fields via both a Genetic Algorithm (GA) and a Simulated Annealing (SA) algorithm will be discussed.

Authors:
 [1];  [1];  [1]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1394797
Report Number(s):
FERMILAB-PUB-17-097-AD-APC; arXiv:1704.00798
Journal ID: ISSN 1748-0221; 1589479
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 12; Journal Issue: 07; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Accelerator Applications; Accelerator modelling and simulations (multi-particle dynamics; single-particle dynamics); Beam dynamics; Beam Optics

Citation Formats

Liu, A., Bross, A., and Neuffer, D. A FODO racetrack ring for nuSTORM: design and optimization. United States: N. p., 2017. Web. doi:10.1088/1748-0221/12/07/P07018.
Liu, A., Bross, A., & Neuffer, D. A FODO racetrack ring for nuSTORM: design and optimization. United States. doi:10.1088/1748-0221/12/07/P07018.
Liu, A., Bross, A., and Neuffer, D. Mon . "A FODO racetrack ring for nuSTORM: design and optimization". United States. doi:10.1088/1748-0221/12/07/P07018. https://www.osti.gov/servlets/purl/1394797.
@article{osti_1394797,
title = {A FODO racetrack ring for nuSTORM: design and optimization},
author = {Liu, A. and Bross, A. and Neuffer, D.},
abstractNote = {Here, the goal of nuSTORM is to provide well-defined neutrino beams for precise measurements of neutrino cross-sections and oscillations. The nuSTORM decay ring is a compact racetrack storage ring with a circumference of ~ 480 m that incorporates large aperture (60 cm diameter) magnets. There are many challenges in the design. In order to incorporate the Orbit Combination section (OCS), used for injecting the pion beam into the ring, a dispersion suppressor is needed adjacent to the OCS . Concurrently, in order to maximize the number of useful muon decays, strong bending dipoles are needed in the arcs to minimize the arc length. These dipoles create strong chromatic effects, which need to be corrected by nonlinear sextupole elements in the ring. In this paper, a FODO racetrack ring design and its optimization using sextupolar fields via both a Genetic Algorithm (GA) and a Simulated Annealing (SA) algorithm will be discussed.},
doi = {10.1088/1748-0221/12/07/P07018},
journal = {Journal of Instrumentation},
number = 07,
volume = 12,
place = {United States},
year = {Mon Jul 17 00:00:00 EDT 2017},
month = {Mon Jul 17 00:00:00 EDT 2017}
}

Journal Article:
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