Notes for the July 11th, 2008 Meeting

$\frac {m}{e}$ = we'll have 2.5"

$\frac {2.5}{x}$ = tan(1.95)

radiator distance - collimator

x = 73.4" = 186.5 cm

radiator is 73.4" - 48" upstream of the wall

Something someone needs to do:

Look up which has the highest neutron production energy thresh hold: Cu, Zn, Ni

$2 \cdot p _n cos \theta = 15 MeV$

$2 \cdot \sqrt{p_n ^2 + m _n ^2} = 15 MeV = m _d$