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A beam test was executed to evaluate the behavior of the first prototype radiation-hard double-sided silicon microstrip sensor for the SDC silicon tracking system. Pions of 4 GeV/c in a test beamline at KEK illuminated three planes of detectors. The signals were amplified, shaped, and discriminated with TEKZ bipolar analog LSI's, and the on-off levels were… (More)
The Belle detector was designed and constructed to carry out quantitative studies of rare B-meson decay modes with very small branching fractions using an asymmetric e þ e À collider operating at the U(4S) resonance, the KEK-B-factory. Such studies require data samples containing B10 7 B-meson decays. The Belle detector is configured around a 1:5 T… (More)
The Particle Therapy Simulation Framework (PTSIM) is a Geant4-based Monte Carlo simulation framework for particle therapy. The PTSIM provides a common platform to model a beam delivery system and a treatment head with patient data obtained from CT images. The PTSIM had already supported three Japanese proton and ion therapy facilities and three more in… (More)
We report a measurement of the D 0-D 0 mixing parameter y CP using 23.4 fb −1 of data collected near the Υ(4S) resonance with the Belle detector at KEKB.
Dose calculation for particle therapy has been performed on GRID environments using a Geant4 based particle therapy simulation framework (PTSIM). PTSIM provides a common platform to model a beam line and treatment head with patient data from CT. PTSIM has already provided three of Japanese proton and ion therapy facilities and three more in other countries.… (More)
We developed a calculation technique to evaluate the biological dose distribution of heavy ion beams, and verified its reliability by comparison with experimental results. The calculation technique was developed by connecting two general-purpose Monte Carlo codes. In order to evaluate the radiation quality and biological effect, the microdosimetric kinetic… (More)
Geant4 is a software toolkit used to simulate the interaction of particles in matter. Monte Carlo simulation is useful in the design of particle treatment facilities and quality assurance of treatment plans. The particle therapy simulation framework (PTSIM) is a Geant4-based simulation framework for particle therapy validated using protons and carbon-ions.… (More)