--- Biasing
Q:
I am doing some biasing using the weight window (with command WW-FACTOr).
But I have done a test without biasing and I get the same result! Why?
A:Check that you have in input a WW-THRESh card. It is compulsory when using
WW-FACTOr, otherwise the two energy thresholds are set equal to zero, and
it is as if the weight window was not there.
Q:
When simulating electromagnetic showers of high energy, it takes
very long time. Which biasing should I use to increase performance?
A:If you are not interested in fluctuations or correlations, use Leading
Particle Biasing (see EMF-BIAS on the Manual). For shielding calculations
of high energy accelerators, the use of this biasing feature is very
effective.
Q:
I am interested in a correlated analysis on a event by event basis. Is
there anything which I must define in the input for that purpose?
A:You must define a "fully analogue" simulation with WHAT(2)<0.0 in the
GLOBAL card.