J-PARC muon source, MUSE

Miyake, Yasuhiro; Nishiyama, K.; Kawamura, N.; Strasser, P.; Makimura, Shunsuke; Koda, A.; Shimomura, K.; Fujimori, Hiroshi; Nakahara, K.; Kadono, R.; Kato, M.; Takeshita, Satoshi; Higemoto, Wataru; Ishida, K.; Matsuzaki, Takashi; Matsuda, Y.; Nagamine, K.

doi:10.1016/j.nima.2008.11.016

Cited by 63 publications

(22 citation statements)

References 4 publications

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“…Electron-muon collisions have been so far studied using the interaction of a muon beam with a fixed target. Muon beams can have energies up to several hundreds GeV, fluxes of 10 7 -10 8 particles per second and transverse dimensions of order of a few centimeters [1][2][3].…”

Section: Jhep10(2020)033mentioning

confidence: 99%

Lepton Flavor Violation at muon-electron colliders

Bossi

Ciafaloni

2020

J. High Energ. Phys.

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Lepton Flavor Violating (LFV) processes are clear signals of physics beyond the Standard Model. We investigate the possibility of measuring this kind of processes at present and foreseeable future muon-electron colliders, taking into account present day bounds from existing experiments. As a model of new physics we consider a Z’ boson with a Ut(1) gauge symmetry and generic couplings. Processes that violate lepton flavor by two units seem to be particularly promising.

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Section: Jhep10(2020)033mentioning

confidence: 99%

Lepton Flavor Violation at muon-electron colliders

Bossi

Ciafaloni

2020

J. High Energ. Phys.

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“…In particular, since J-PARC provides an intense negative muon beam with wide kinetic energy range from 65 keV to 54 MeV [2], the compositions of several samples were already determined by µXEA [3][4][5][6][7][8][9]. We have therefore attempted to use µXEA for the observation of Li distribution in the Li-ion battery in J-PARC.…”

Section: Elemental Analysis With Muonic X-ray (µXea)mentioning

confidence: 99%

Detection of Li in Li-ion Battery Electrode Materials by Muonic X-ray

Umegaki

Higuchi

Nozaki

et al. 2018

Proceedings of the 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (ΜSR2017)

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In order to improve the total performance of Li-ion batteries, one of the key issues is how to proceed a homogeneous reaction in the whole electrodes. This leads to the requirement for a non-destructive analysis technique to observe the distribution of Li in the Li-ion battery under working condition. An elemental analysis with muonic x-ray (µXEA) is known as a unique technique and is expected to be suitable for such purpose. We have therefore performed µXEA on cathode materials with different Li contents. The intensity of muonic x-ray was found to roughly proportional to the Li content.

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“…For future investigations we find a particularly interesting and versatile development using our developed µ + SR method in combination with the unique low-energy µ + SR (LEM) technique available at the Paul Scherrer Institute (PSI) in Switzerland [32][33][34] or the upcoming Ultra Slow Muon Microscope (USM) at J-PARC in Japan [35,36]. With this technique, it is possible to tune the kinetic energy of the muons i.e.…”

Section: Summary and Prospectmentioning

confidence: 99%

Macroscopic Electrochemical Properties Clarified by Microscopic Measurements; Present and Future

Shen¹

2014

Proceedings of the International Symposium on Science Explored by Ultra Slow Muon (USM2013)

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Although microscopic measurements, such as, Li-NMR and µ + SR, provide fundamental information on Li-diffusion in solids, it is highly preferable to combine such information with the macroscopic properties in order to obtain a new insight to improve electrochemical properties of the whole battery system and/or to develop new electrode and electrolyte materials. In fact, the comparison between a diffusion coefficient of Li (D Li ) with ionic conductivity provided the number density of mobile Li ions, i.e. carrier density in a garnet-type electrolyte material, Li 5+x La 3 Zr x Nb 1−x O 12 . Furthermore, when D Li obtained by µ + SR is compared with D Li estimated by electrochemical measurements, a reactive surface of the cathode used for the electrochemical measurements was firstly derived as a function of the Li content (x) in the cathode material, Li x (Co 1/3 Ni 1/3 Mn 1/3 )O 2 . Finally, I will make an outlook towards future developments by means of a ultra-slow muon microscope.

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J-PARC muon source, MUSE

Cited by 63 publications

References 4 publications

Lepton Flavor Violation at muon-electron colliders

Lepton Flavor Violation at muon-electron colliders

Detection of Li in Li-ion Battery Electrode Materials by Muonic X-ray

Macroscopic Electrochemical Properties Clarified by Microscopic Measurements; Present and Future

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