Exploring the Focusing Mechanism of the NuMI Horn Magnets

Fuente: arXiv
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Main Authors: Yonehara, Katsuya, Ganguly, Sudeshna, Wickremasinghe, Don Athula, Snopok, Pavel, Yu, Yiding
Format: Preprint
Published: 2023
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_version_ 1866915248920854528
author Yonehara, Katsuya
Ganguly, Sudeshna
Wickremasinghe, Don Athula
Snopok, Pavel
Yu, Yiding
author_facet Yonehara, Katsuya
Ganguly, Sudeshna
Wickremasinghe, Don Athula
Snopok, Pavel
Yu, Yiding
contents Neutrinos at the Main Injector (NuMI) is a project at Fermilab that provides an intense beam of neutrinos used by a number of experiments. NuMI creates a beam of pions that decay into neutrinos, muons, and other particles. Muons are registered by the muon monitors. Magnetic horns are the key elements of the NuMI beam line. This paper uses the muon beam profile observed at the muon monitors to study the NuMI horn focusing mechanism. It is found that the horn magnet generates dipole and quadrupole fields to focus pions. This suggests that the optics of the horn magnet are predominantly linear. Our study shows that the muon beam profile accurately detects the horn current within 0.05%.
format Preprint
id arxiv_https___arxiv_org_abs_2305_08695
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Exploring the Focusing Mechanism of the NuMI Horn Magnets
Yonehara, Katsuya
Ganguly, Sudeshna
Wickremasinghe, Don Athula
Snopok, Pavel
Yu, Yiding
Accelerator Physics
Neutrinos at the Main Injector (NuMI) is a project at Fermilab that provides an intense beam of neutrinos used by a number of experiments. NuMI creates a beam of pions that decay into neutrinos, muons, and other particles. Muons are registered by the muon monitors. Magnetic horns are the key elements of the NuMI beam line. This paper uses the muon beam profile observed at the muon monitors to study the NuMI horn focusing mechanism. It is found that the horn magnet generates dipole and quadrupole fields to focus pions. This suggests that the optics of the horn magnet are predominantly linear. Our study shows that the muon beam profile accurately detects the horn current within 0.05%.
title Exploring the Focusing Mechanism of the NuMI Horn Magnets
topic Accelerator Physics
url https://arxiv.org/abs/2305.08695