TY - JOUR
T1 - Development of a microchannel plate based beam profile monitor for a re-accelerated muon beam
AU - Kim, Bongho
AU - Bae, Sunghan
AU - Choi, Hyunsuk
AU - Choi, Seonho
AU - Kawamura, Naritoshi
AU - Kitamura, Ryo
AU - Ko, Ho San
AU - Kondo, Yasuhiro
AU - Mibe, Tsutomu
AU - Otani, Masashi
AU - Razuvaev, Georgiy P.
AU - Won, Eunil
N1 - Funding Information:
We are grateful to the J-PARC personnel for the excellent machine operation. The experiment with muon beam was performed at the Materials and Life Science Experimental Facility of the J-PARC under a user program (Proposal No. 2015A0321). We thank Dr. T. U. Ito for his advice on the technical design. This work was supported by the JSPS KAKENHI Grant Numbers JP26287053 , JP15H03666 , JP16J07784 , the Korean National Research Foundation grants NRF-2015K2A2A4000092 , NRF-2015H1A2A1030275 , NRF-2015R1A4A1042542 , NRF-2017R1A2B3007018 , the Russian Foundation for Basic Research grant RFBR 17-52-50064 , which is a part of the Japan-Russia Research Cooperative Program and the Russian Science Foundation grant RNF-17-12-01036 .
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/8/11
Y1 - 2018/8/11
N2 - A beam profile monitor (BPM) based on a microchannel plate has been developed for muon beams with low transverse momentum for the measurement of the muon anomalous magnetic moment and electric dipole moment at high precision, with capability of diagnosing muon beams of kinetic energy range from a few keV to 4 MeV. The performance of the BPM has been evaluated using a surface muon beam at J-PARC and additionally with an ultraviolet (UV) light source. It has been confirmed that the BPM has a dynamic range from a few to 104 muons per bunch without saturation. The spatial resolution of the BPM has been estimated to be less than 0.30 mm. The positron background from muon decays is an obstacle in muon beam profile monitoring and a partial discrimination of the positrons has been achieved under discrete particle conditions.
AB - A beam profile monitor (BPM) based on a microchannel plate has been developed for muon beams with low transverse momentum for the measurement of the muon anomalous magnetic moment and electric dipole moment at high precision, with capability of diagnosing muon beams of kinetic energy range from a few keV to 4 MeV. The performance of the BPM has been evaluated using a surface muon beam at J-PARC and additionally with an ultraviolet (UV) light source. It has been confirmed that the BPM has a dynamic range from a few to 104 muons per bunch without saturation. The spatial resolution of the BPM has been estimated to be less than 0.30 mm. The positron background from muon decays is an obstacle in muon beam profile monitoring and a partial discrimination of the positrons has been achieved under discrete particle conditions.
KW - Beam diagnostics
KW - Beam profile
KW - Low emittance muon beam
KW - Microchannel plate
UR - http://www.scopus.com/inward/record.url?scp=85048760365&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2018.05.014
DO - 10.1016/j.nima.2018.05.014
M3 - Article
AN - SCOPUS:85048760365
SN - 0168-9002
VL - 899
SP - 22
EP - 27
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -