Publications by authors named "Hiroki Miyanaga"
Article Synopsis
- Magnetoencephalography (MEG) systems measure brain activity by detecting magnetic fields, but they traditionally rely on liquid helium and require magnetically shielded rooms, which complicates their use.
- Our advanced MEG system features a superconducting magnetic shield and a zero-boil-off system, eliminating the need for frequent helium refills and reducing spatial constraints.
- Testing demonstrated that our system provided precise magnetic field distributions with estimation errors under 3.5 mm, confirming its practical effectiveness in neuroimaging.
Purpose: Taking advantage of the continuous, high-intensity beam of the cyclotron at the National Cancer Center Hospital East, we developed a continuous line scanning system (CLSS) prototype for prostate cancer in collaboration with Sumitomo Heavy Industries, Ltd (Tokyo, Japan).
Materials And Methods: The CLSS modulates dose distribution at each beam energy level by varying scanning speed while keeping the beam intensity constant through a beam-intensity control system and a rapid on/off beam-switching system. In addition, we developed a beam alignment system to improve the precision of the beam position.