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Table 2 Observation modes of the MEP-i

From: Medium-energy particle experiments–ion mass analyzer (MEP-i) onboard ERG (Arase)

Mode Size (Byte) Data Notes
Normal 4096 16-bit counter × 16 × 16 × 8 (SV, AZ, TOF) 8 TOF groups are sorted using the m/q tables
640 32-bit list data, 160 events at maximum  
TOF 4096 16-bit counters: × 4 × 512 (AZ, TOF)  
48 24-bit counters (start only) × 16 (AZ) For in-flight calibration
48 24-bit counters (stop only) × 16 (AZ) For in-flight calibration
48 24-bit counters (double coincidence) × 16 (AZ) For in-flight calibration
640 32-bit list data, 160 events at maximum PH is not available
SSD 4096 16-bit counter × 16 × 8× 16 (SV, AZ, E) TOF is not available
640 32-bit list data, 160 events at maximum  
  1. SV, AZ, TOF, and PH indicate the sweeping voltage, azimuthal angle, time-of-flight, and pulse height, corresponding to the E/q, incident direction, m/q, and E, respectively. The 32-bit list data contains the values of SV (4 bits), AZ (4 bits), TOF (9 bits), and PH (10 bits)