Two new vertical neutron cameras characterized by high detection efficiency were developed on the Large Helical Device in order to observe poloidal structures of helically trapped beam ions created by the perpendicularly injected positive-ion based neutral beam (P-NB) and are newly operated since 2018. In this work, the neutron fields at the vertical neutron cameras are investigated using the Monte Carlo N-particle transport code to evaluate the performance of its collimators. The results indicate that neutrons are attenuated by the heavy concrete and are well collimated through the collimator to detectors. Neutron spectra at the detector position show over 99% of uncollided 2.45 MeV neutrons. Time evolution of neutron emission profiles dur...
Measurements of the neutron emission, resulting from nuclear fusion reactions between the hydrogen i...
A diamond-based neutral particle analyzer (DNPA) array composed of single-crystal chemical vapor dep...
Graduation date: 2017The Neutron radiography facility (NRF) at Oregon State University (OSU) has bee...
In the currently performed neutral beam (NB) -heated deuterium plasma experiments, neutrons are main...
Characteristics of the new vertical neutron camera (VNC3) installed for the study of energetic-parti...
The neutron emission profile of deuterium plasma in the Large Helical Device was measured with a mul...
The confinement of neutral beam (NB)-injected fast ions has been investigated by the neutron intensi...
The deuterium operation of the large helical device (LHD) heliotron started in March 7, 2017, after ...
The neutral beam (NB) fast ion confinement in the Large Helical Device (LHD) is studied for several ...
The neutron profile monitor stably operated at a high-count-rate for deuterium operations in the Lar...
The effect of the helically-trapped energetic-ion-driven resistive interchange modes (EICs) on energ...
Measurements of radial DD neutron emission profiles by the vertical neutron camera (VNC) are perform...
To achieve a steady-state fusion burning plasma, energetic particle confinement studies have been pe...
The deuterium operation of the large helical device (LHD) began in March 7, 2017, after long-term pr...
A new radial neutron camera system has been developed and operated recently in the HL-2A tokamak to ...
Measurements of the neutron emission, resulting from nuclear fusion reactions between the hydrogen i...
A diamond-based neutral particle analyzer (DNPA) array composed of single-crystal chemical vapor dep...
Graduation date: 2017The Neutron radiography facility (NRF) at Oregon State University (OSU) has bee...
In the currently performed neutral beam (NB) -heated deuterium plasma experiments, neutrons are main...
Characteristics of the new vertical neutron camera (VNC3) installed for the study of energetic-parti...
The neutron emission profile of deuterium plasma in the Large Helical Device was measured with a mul...
The confinement of neutral beam (NB)-injected fast ions has been investigated by the neutron intensi...
The deuterium operation of the large helical device (LHD) heliotron started in March 7, 2017, after ...
The neutral beam (NB) fast ion confinement in the Large Helical Device (LHD) is studied for several ...
The neutron profile monitor stably operated at a high-count-rate for deuterium operations in the Lar...
The effect of the helically-trapped energetic-ion-driven resistive interchange modes (EICs) on energ...
Measurements of radial DD neutron emission profiles by the vertical neutron camera (VNC) are perform...
To achieve a steady-state fusion burning plasma, energetic particle confinement studies have been pe...
The deuterium operation of the large helical device (LHD) began in March 7, 2017, after long-term pr...
A new radial neutron camera system has been developed and operated recently in the HL-2A tokamak to ...
Measurements of the neutron emission, resulting from nuclear fusion reactions between the hydrogen i...
A diamond-based neutral particle analyzer (DNPA) array composed of single-crystal chemical vapor dep...
Graduation date: 2017The Neutron radiography facility (NRF) at Oregon State University (OSU) has bee...