IMP-8 Energetic Particle Experiment (EPE):

Selected Channel Characteristics

Detector Discriminator Level Names Discriminator Level Energies (MeV) [a] Logic [b] Output Channels (MeV) [c] Designation Nuclear Charge Range Samples Per Spin Geometric Factor (cm2-ster)
A A1 0.03 A1(A2)(B1) 0.05 - 0.22 L1 Z > 1 16 1.114e-02
A2 0.20 A2(A4)(B1) 0.22 - 0.80 L2 Z > 1 16 1.114e-02
A3 0.50 A3(A4)B2(B3)C 4.5 - 8.5 L5 Z = 1 8 1.065e-02
A4 0.80 A4(A5)(B1) 0.80 - 2.1 L3 Z > 1 16 1.114e-02
A5 2.5 A4(A5)B1(B2)C 2.1 - 4.5 L4 Z = 1 16 1.065e-02
A6 3.5 A6(B1)(C) 8.4 - 16.0 L11 Z = 2 8 1.0e-02
(A2)B1(C) background L9 8 1.0e-02
B B1 0.10 A5(B1) 2.2 - 8.4 L10 Z > 2 8 1.0e-02
B2 3.6 A5(A6)B2(C) 16.0 - 35.0 L12 Z = 2 8 1.0e-02
B3 9.0
C C 0.10 A2B1C 8.5 - 25.0 L6 Z = 1 8 9.66-03
D D1 0.030 D1(D2) 0.03 - 0.10 L7 electrons 16 1.5e-02
D2 0.100
E E1 0.100 E1(E2) 0.10 - 0.20 L8 electrons 16 9.0e-03
E2 0.200
F F1 0.015 F1 > 0.015 F electrons and ions 16 3.21e-02
G G1 0.60 G1 > 0.6 G1 Z > 2 16 3.21e-02
G2 1.0 G2 > 1.0 G2 Z > 2 8 3.21e-02
G3 2.0 G3 > 2.0 G3 Z > 3 8 3.21e-02

Foototes:
[a] Levels A1 and D1 are commandable to 50 keV. Level F1 is commandable to 30 keV.
[b] Parentheses around a discriminator level denotes anti-coincidence.
[c] Detector A low-energy proton response is 50 keV due to aluminum dead layer. For the same reason, detector F low-energy proton response is 0.038 MeV.