Fig. 28.

The REMS sensor, a next-generation instrument derived from MagEIS MED, to be flown on the GTOSat CubeSat. Particle trajectories (coming in straight along the aperture boresight) for 100 keV to 2 MeV electrons (blue traces) and 150 keV to 10 MeV protons (red traces) are shown, obtained from test-particle simulations in a uniform, 1900 G chamber magnetic field (oriented in the $+Z$ direction). The electron detector array is plotted along the $X$-axis and the proton detector array is shown in the upper right. The inset image shows a cross-section of the magnetic chamber in this same $XY$ plane. After Blum et al. (2020) ©Society of Photographic Instrumentation Engineers