Commissioning of the Diagnostic Beam Line for the Muon RF Acceleration with H- Ion Beam Derived from the Ultraviolet Light
Abstract
A muon LINAC is under study for a precise measurement of muon g - 2/EDM in J-PARC. We conducted an experiment with a muon acceleration using an RFQ (radio frequency quadrupole) on October and December 2017. The surface muon beam was injected to a metal degrader to generate slow Mu-. The Mu- was composed of the bound state of a μ+ and two electrons. The slow Mu-'s were accelerated to 89 keV using an electrostatic accelerator and the RFQ. Prior to muon RF acceleration, we conducted a test run of the diagnostic beam line consisting of quadrupole magnets and a bending magnet. The ultraviolet light was irradiated to an aluminum foil and H- ion was generated. Therefore, we could check operation for diagnostic beam line, which was essential for transportation and momentum selection of the Mu-'s. In this paper, the performance evaluation of the diagnostic beam line by H- ion is reported.
- Publication:
-
Quantum Beam Science in Biology and Soft Materials
- Pub Date:
- 2019
- DOI:
- 10.7566/JPSCP.25.011028
- Bibcode:
- 2019qbsb.confa1028N