Calculates cross section for a proton-Hydrogen impact excitation transition from
the state to the state at energy eb
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
real(kind=Float64), | intent(in) | :: | eb | Relative collision energy [keV/amu] |
Cross Section []
function p_excit_2_9_janev(eb) result(sigma)
!+Calculates cross section for a proton-Hydrogen impact excitation transition from
!+the \(n=2\) state to the \(m=9\) state at energy `eb`
!+
!+###Equation
!+$$ H^+ + H(2) \rightarrow H^+ + H(9) $$
!+
!+###References
!+* Eq. 33 and Table 6 in Ref. 2 [[atomic_tables(module)]]
!+
real(Float64), intent(in) :: eb
!+ Relative collision energy [keV/amu]
real(Float64) :: sigma
!+ Cross Section [\(cm^2\)]
real(Float64), parameter :: A = 9.2d-2
sigma = A*p_excit_2_5_janev(eb)
end function p_excit_2_9_janev