I.5 Atmospheric albedo neutron model
The
QinetiQ Atmospheric Radiation Model (QARM) uses a response function approach
based on
|
(I-11) |
where
ϕ is the particle flux,
h is the altitude in km and
Re is the earth’s radius in km
This method compares favourably with the limited experimental measurements [RD.81], [RD.82].
Results for three cut-off rigidities are given for solar minimum and maximum respectively in Figure I-6 and Figure I-7.