Beam dynamics study of the high-power electron beam irradiator using niobium-tin superconducting cavity

Fuente: arXiv
Saved in:
Bibliographic Details
Main Authors: Tanaka, Olga, Honda, Yosuke, Yamamoto, Masahiro, Yamada, Tomohiro, Sakai, Hiroshi
Format: Preprint
Published: 2024
Subjects:
Online Access:
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1866913311340101632
author Tanaka, Olga
Honda, Yosuke
Yamamoto, Masahiro
Yamada, Tomohiro
Sakai, Hiroshi
author_facet Tanaka, Olga
Honda, Yosuke
Yamamoto, Masahiro
Yamada, Tomohiro
Sakai, Hiroshi
contents A compact accelerator design for irradiation purposes is being proposed at KEK. This design targets an energy of 10 MeV and a current of 50 mA. Current design includes a 100 kV thermionic DC electron gun with an RF grid, 1-cell normal-conducting buncher cavity, and Nb$_{3}$Sn superconducting cavities to accelerate the beam to the final energy of 10 MeV. The goal of the present beam dynamics study is the beam loss suppression (to the ppm level), since it results in a thermal load on the cavity. Then the beam performance at the accelerator exit should be confirmed. The main issue was to transport the beam without loss, since the initial electron energy (100 keV) is low, and the beam parameters are intricately correlated. In addition, the space charge effect is considerable. For this reason, simultaneous optimization of multiple parameters was necessary. Here we report optimization results and their effect on the design of the machine.
format Preprint
id arxiv_https___arxiv_org_abs_2404_08240
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Beam dynamics study of the high-power electron beam irradiator using niobium-tin superconducting cavity
Tanaka, Olga
Honda, Yosuke
Yamamoto, Masahiro
Yamada, Tomohiro
Sakai, Hiroshi
Accelerator Physics
A compact accelerator design for irradiation purposes is being proposed at KEK. This design targets an energy of 10 MeV and a current of 50 mA. Current design includes a 100 kV thermionic DC electron gun with an RF grid, 1-cell normal-conducting buncher cavity, and Nb$_{3}$Sn superconducting cavities to accelerate the beam to the final energy of 10 MeV. The goal of the present beam dynamics study is the beam loss suppression (to the ppm level), since it results in a thermal load on the cavity. Then the beam performance at the accelerator exit should be confirmed. The main issue was to transport the beam without loss, since the initial electron energy (100 keV) is low, and the beam parameters are intricately correlated. In addition, the space charge effect is considerable. For this reason, simultaneous optimization of multiple parameters was necessary. Here we report optimization results and their effect on the design of the machine.
title Beam dynamics study of the high-power electron beam irradiator using niobium-tin superconducting cavity
topic Accelerator Physics
url https://arxiv.org/abs/2404.08240