Masaharu Nomachi
Masaharu Nomachi is a Professor Emeritus and Specially Appointed Professor in Research Center for Nuclear Physics at Osaka University.
He received a PhD in Physics from Osaka University, Japan in 1983, followed by postdoctoral work at Max Planck Institute for nuclear physics and the department of physics at Heidelberg University. He worked in Low Energy Antiproton experiment at CERN. In 1986 he joined KEK online data acquisition group. He leads development of UNIX based data acquisition system for SDC/SSC test experiments and experiments at KEK. In 1993, he joined ATLAS/LHC experiment. In 1995, he moved to RCNP (Research Center for Nuclear Physics) at Osaka University. In 2000, he moved to Graduate school of Science, Osaka University, as a professor. He has worked in Neutrino physics. He also worked on the data handling on satellites. He worked on SpaceWire standard, which is based on DS link at CERN.
He organized Radiation Measurements School in Osaka. In 2009, 2010, 2011 with JSPS budget, in 2014, 2015, 2016, 2017, 2018, 2019 with JST budget, students from Vietnam, Malaysia, Indonesia and other ASEAN countries were invited. More than 100 students were invited in 10 years.
He is a member of the organizer for Fukushima environmental radiation measurements school. In 2022, 2023, 2024, international students were invited to Fukushima environmental Radiation measurements school collaboration with IEEE, IAEA, JST. Students came from ASEAN countries
In 2014, he organized an international school on real-time systems in Osaka. After the conference he was one of the initiators of the IEEE NPSS school on real time systems - the first in a series that was followed by schools in Vietnam (2016), South Africa (2018), Malaysia (2019), Senegal (2022), Morocco (2024) and lead to the program now managed by EduCom. He also developed compact equipment for those schools.
Abstract Prof. Nomachi Lectures:
Photodetectors and photocounting.
The behavior of light has been a long-standing question. Newton advocated that light is composed of particles, while Huygens advocated that light behaves like a wave. In the 20th century, it was found that light is a particle that behaves like a wave, or that light is a quantized wave.
A scintillator produces scintillation light by the energy deposition of radiation. To measure radiation using a scintillator, we detect photons. We study methods to measure the particle "photon." How many photons are emitted by radiation? What is the energy of each emitted photon? Does it have enough energy to be detected? We learn about photodetectors.
The number of particles fluctuates statistically. We will study how this fluctuation affects radiation measurements.
