Overview of LLRF System for iBNCT Accelerator
Abstract
At the Ibaraki Neutron Medical Research Center, an accelerator-based neutron source for iBNCT (Ibaraki - Boron Neutron Capture Therapy) is being developed using an 8-MeV proton linac and a beryllium-based neutron production target. The proton linac consists of an RFQ and a DTL, which is almost the same as the front part of J-PARC linac. However, here only one high-power klystron is used as the RF source to drive the two cavities, which have quite different Q-values and responses. From June 2016, a cPCI based digital feedback system was applied to the iBNCT accelerator. It serves not only as a controller for the feedback of acceleration fields, but also as a smart operator for the auto-tuning of the two cavities in the meantime, especially during the RF startup process to the full power. The details will be described in this report.
Keywords
Cite
@article{arxiv.1810.05686,
title = {Overview of LLRF System for iBNCT Accelerator},
author = {Z. Fang and K. Futatsukawa and Y. Fukui and T. Obina and Y. Honda and F. Qiu and T. Sugimura and S. Michizono and S. Anami and F. Naito and H. Kobayashi and T. Kurihara and M. Sato and T. Miyajima and T. Ohba and N. Nagura},
journal= {arXiv preprint arXiv:1810.05686},
year = {2018}
}
Comments
Poster presented at LLRF Workshop 2017 (LLRF2017, arXiv:1803.07677)