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Won E.,Lee Woodo 한국물리학회 2021 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.79 No.3
The J-PARC muon g − 2/EDM experiment aims to measure the muon magnetic moment anomaly aμ = (g − 2)∕2 . The target sensitivity for aμ is a statistical uncertainty of 450 × 10−9 , and aμ can be extracted by measuring the spin precession of muons (ωa). The ωa can be extracted from the distribution of muon decay time, and the time is measured by reconstructing tracks of positrons that are decayed from the muons. To extract ωa precisely, the systematic effects on ωa should be controlled under the aforementioned sensitivity. To study systematic effects, we develop a compact simulation package, and using our developed package, we study several systematic effects and discuss the results. We discuss the implementation details of the package and studies of systematic effects on ωa.
A fabrication of low-power distribution systems for muon g - 2/EDM experiment at J-PARC
Won E.,Lee Woodo 한국물리학회 2021 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.79 No.3
A special DC-to-DC converter is designed to supply low-power to the detector system of the J-PARC g − 2/EDM experiment, which aims to measure the anomaly of the muon magnetic dipole moment, aμ = (g − 2)∕2 . The important requirement of the DC-to-DC converter is that the stray magnetic field from the converter should be less than 30 μT to reach the experimental sensitivity of 450 ppb. The DC-to-DC converter contains one buck converter and three regulators, featured with a customary designed air-core inductor. The detailed design and test results for the voltage stability, stray magnetic field, and heat dissipation in vacuum are reported.