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Vacuum Pressure

10E-6 Torr

Maximum Radiation Dose

1E14 2 GeV electrons (~3E13 1MeV NEQ)

Maximum Magnetic Field

0.55T

Target

0.125% X0 Tungsten (approx. 4 microns thickness)

# tracking planes

5

two modules per plane, one above and one below the dead zone

Sensors per module

2, in small angle stereo configuration

Stereo angles L1; L2; L3; L4; L5

(0/100); (0,100); (0,50); (0,50); (0,50) mrad

stereo sensors dip away from dead zone on electron side