2n BKG data

[math]I_{e^-} = 30 mA[/math], [math]Pw=20 ns[/math], [math]R=300Hz[/math], [math]E_{e^-}=10.5 MeV[/math]

Upstream collimator diamater = 0.25"

Downstream collimator diamater = 2.0"

2 Al sheets as bremsstrahlung radiator;

Detector G: HV(G1) = -1700 V, HV(G2) = -1650 V.

There was 2" of lead in front of the Det G.