[Halld-klf] KL beam line check

[Beni Zihlmann]

Attached you find a short note about simulating Klong beam in the 
Be-production
target and test how many may reach the liquid hydrogen target.
As you can see the transmission rate is below 10% for any Klong below 
2000MeV/c

Also it looks like it is very important to have good shielding along the 
beam line
all the way from the start of the beam line to the exit of the alcove 
and also
before the cryogenic target to prevent particles from entering the CDC gong
along z over the full length of the CDC. such particles are devastating 
for CDC
operation.

cheers,
Beni
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