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e_excit Function

  1. atomic_tables.f90
  2. atomic_tables
  3. e_excit

public function e_excit(eb, n_max, m_max) result(sigma)

Calculates a matrix of cross section for a proton-Hydrogen impact excitation transition from the n=1..nmax→m=1..mmax states at energy eb

Equation

e+H(n=1..nmax)→e+H(m=1..mmax),m>n

References

Arguments

Type IntentOptional AttributesName
real(kind=Float64), intent(in) :: eb

Relative collision energy [keV/amu]
integer, intent(in) :: n_max

Number of final atomic energy levels/states
integer, intent(in) :: m_max

Number of initial atomic energy levels/states

Return Value real(kind=Float64), dimension(n_max,m_max)

Matrix of cross sections where the subscripts correspond to the n→m transitions: e_excit[n,m] [cm2]


Calls

proc~~e_excit~~CallsGraph proc~e_excit e_excit proc~e_excit_n e_excit_n proc~e_excit->proc~e_excit_n proc~e_excit_1_janev e_excit_1_janev proc~e_excit_n->proc~e_excit_1_janev proc~e_excit_f e_excit_f proc~e_excit_n->proc~e_excit_f proc~e_excit_2_3_janev e_excit_2_3_janev proc~e_excit_n->proc~e_excit_2_3_janev proc~e_excit_1_janev->proc~e_excit_f proc~e_excit_1_3_janev e_excit_1_3_janev proc~e_excit_1_janev->proc~e_excit_1_3_janev proc~e_excit_1_2_janev e_excit_1_2_janev proc~e_excit_1_janev->proc~e_excit_1_2_janev proc~e_excit_1_5_janev e_excit_1_5_janev proc~e_excit_1_janev->proc~e_excit_1_5_janev proc~e_excit_1_4_janev e_excit_1_4_janev proc~e_excit_1_janev->proc~e_excit_1_4_janev

Called by

proc~~e_excit~~CalledByGraph proc~e_excit e_excit proc~write_bb_h_e write_bb_H_e proc~write_bb_h_e->proc~e_excit program~generate_tables generate_tables program~generate_tables->proc~write_bb_h_e

Contents

Source Code

e_excit

Source Code

function e_excit(eb, n_max, m_max) result(sigma)
    !+Calculates a matrix of cross section for a proton-Hydrogen impact excitation transition
    !+from the \(n=1..n_{max} \rightarrow m=1..m_{max}\) states at energy `eb`
    !+
    !+###Equation
    !+$$ e + H(n=1..n_{max}) \rightarrow e + H(m=1..m_{max}), m \gt n $$
    !+
    !+###References
    !+* Eq. 5 and Table 2 in Ref. 2 [[atomic_tables(module)]]
    !+* Eqs. 6-7 in Ref. 2 [[atomic_tables(module)]]
    !+* Section 2.1.1 B in Ref. 2 [[atomic_tables(module)]]
    !+
    real(Float64), intent(in)             :: eb
        !+ Relative collision energy [keV/amu]
    integer, intent(in)                   :: m_max
        !+ Number of initial atomic energy levels/states
    integer, intent(in)                   :: n_max
        !+ Number of final atomic energy levels/states
    real(Float64), dimension(n_max,m_max) :: sigma
        !+ Matrix of cross sections where the subscripts correspond
        !+ to the \(n \rightarrow m\) transitions: e_excit[n,m] [\(cm^2\)]

    real(Float64), dimension(12,12) :: sigma_full

    integer :: n

    do n=1,12
        sigma_full(n,:) = e_excit_n(eb, n, 12)
    enddo

    sigma = sigma_full(1:n_max,1:m_max)

end function e_excit