Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8168301 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2016 | 34 Pages |
Abstract
The J-PARC experiment will use a 3-T MRI solenoid magnet as the muon storage ring with a 0.66Â m diameter to achieve a 1-ppm level of local uniformity. The previous gâ2 injection scheme is not applicable for beam injection into a small ring. The new scheme provides a smooth injection utilizing a radial solenoidal fringe field, without causing an error field in the storage volume. The expected storage efficiency is 80% and over, which is to be compared to 3.5% for the previous gâ2 experiment. In addition, the ability to control the storage plane is important for the EDM measurement. In this paper, we introduce the conceptual design and required beam parameters in terms of Twiss functions and the expected injection efficiency.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Hiromi Iinuma, Hisayoshi Nakayama, Katsunobu Oide, Ken-ichi Sasaki, Naohito Saito, Tsutomu Mibe, Mitsushi Abe,