FLYCHK HELP: Initial

keyword : initial

Set up the initial condition for the time-dependent cases

steady-state population as the initial condition

lte

local thermodynamic equilibrium as the initial condition

file

read the inital level poplation distribution from a file

Two possible formats of the initial population file:

format		example
name_of_levels #_density		01g01 1.0e20
name_of_levels fraction		01g01 1.00

If the fraction is used, the # density is computed by multiplying the fraction and the total ion density

Understanding the names of levels in FLYCHK:

For super-configuration levels with more than 3 electrons:

Most of FLYCHK levels are super-configuration levels and the levels are described by the number of electrons in the shell. As an example, the Be-like ground state wil be K(2)L(2) that is, 2 electrons in the K-shell and 2 electrons in the L-shel and therefore, 1s(2)2s(2), 1s(2)2s(1)2p(1) and 1s(2)2p(2) configurations belong to the one super-configuration in the FLYCHK. Please refer to the HEDP reference for more details

There are three parts in specifying a level :

ex) 04g02 : Be-like level with outmost electrons at n=2

1) the first two digits indicates the iso-sequence of the ion
2) the 3rd alphabet specifies inner-shell vacancy of the level:

g	bound states
a	doubly-excited states
k	k-shell vacant states
l	l-shell vacant states
m	m-shell vacant states

3) the last two digits the maximum principal quantum number of the outmost electron

For levels of H, He and Li-like ions for low-Z element (z<27)

The levels are the same as the old FLY levels

Li-like	li2s -li5g	1s2 nl 1L	States up to n= 5, l= 4 which are averaged over ml
	li6 - lin	1s2 n	States above n = 5; hydrogenic
	abcd	1s2p2 2P	Autoionizing state decay to li2p
	jkl	1s2p2 2D	Autoionizing state decay to li2p
	mn	1s2p2 2Smix	Autoionizing state decay to li2p
	op	1s2s2 2Smix	Autoionizing state decay to li2p
	qr	1s2p(1P) 2s 2Pmix	Autoionizing state decay to li2s
	st	1s2p(3P) 2s 2Pmix	Autoionizing state decay to li2s
He-like	he1s	1s2 1S	Ground state
	he2st	1s2s 3S	triplet
	he2ss	1s2s 1S	singlet
	he2pt	1s2s 3P	triplet; Transition to he1s is ‘intercombination’ line
	he2ps	1s2s 1P	singlet; Transition to he1s is resonance line
	henps	1s np	grouped state of level n
	2s2s1s	2s2 1S	Autoionizing state. Decays to he2ps
	2s2p3p	2s2p 3P	Autoionizing state. Decays to he2st
	2p2p3p	2p2 3P	Autoionizing state. Decays to he2pt
	2p2p1d	2p2 1D	Autoionizing state. Decays to he2ps
	2s2p1p	2s2p 1P	Autoionizing state. Decays to he2ss
H-like	hyn	hydrogenic level n

For levels of H, He and Li-like ions for mid-Z element (z>=27)

The levels up to n=4 are taken from HULLAC atomic data and the rest up to n=10 are the same as the super-configuration:

Li-like	03g02 2p1s3101 2p1s3001 3s1s3001 3p1s3101 3p1s3001 3d1s3101 3d1s3001 4s1s3001 4p1s3101 4p1s3001 4d1s3101 4d1s3001 4f1s3101 4f1s3001	1s(2) 2s 1s(2) 2p- 1s(2) 2p+ 1s(2) 3s 1s(2) 3p- 1s(2) 3p+ 1s(2) 3d- 1s(2) 3d+ 1s(2) 4s 1s(2) 4p- 1s(2) 4p+ 1s(2) 4d- 1s(2) 4d+ 1s(2) 4f- 1s(2) 4f+	bound states
	2s2s3001 2p2s3102 2p2s3103 2p2s3004 2p2s3101 2p2s3003 2p2p3201 2p2s3002 2p2p3101 2p2s3001 2p2p3104 2p2p3102 2p2p3103 2p2p3003 2p2p3002 2p2p3001	1s 2s 2s 1s 2s 2p- 1s 2s 2p- 1s 2s 2p+ 1s 2s 2p- 1s 2s 2p+ 1s 2p- 2p- 1s 2s 2p+ 1s 2p- 2p- 1s 2s 2p+ 1s 2p- 2p+ 1s 2p- 2p+ 1s 2p- 2p+ 1s 2p+ 2p+ 1s 2p+ 2p+ 1s 2p+ 2p+	detailed jj-split autoionizing states
	3s2s3003 3p2s3102 3d2s3102 3s2p3101 3p2p3301 3d2p3301 4s2s3003 4p2s3102 4d2s3102 4f2s3102 4s2p3101 4p2p3301 4d2p3301 4f2p3301	1s 2s 3s 1s 2s 3p 1s 2s 3d 1s 2p 3s 1s 2p 3p 1s 2p 3d 1s 2s 4s 1s 2s 4p 1s 2s 4d 1s 2s 4f 1s 2p 4s 1s 2p 4p 1s 2p 4d 1s 2p 4f	jj-configuration averaged autoionizing states
He-like	02g01 2s1s2002 2p1s2101 2s1s2001 2p1s2102 2p1s2002 2p1s2001 3s1s2002 3p1s2101 3s1s2001 3p1s2102 3p1s2002 3d1s2101 3d1s2102 3p1s2001 3d1s2002 3d1s2001 4s1s2002 4p1s2101 4s1s2001 4p1s2102 4p1s2002 4d1s2101 4d1s2102 4p1s2001 4d1s2002 4f1s2101 4f1s2102 4d1s2001 4f1s2002 4f1s2001	1s(2) 1s 2s 1s 2p- 1s 2s 1s 2p- 1s 2p+ 1s 2p+ 1s 3s 1s 3p- 1s 3s 1s 3p- 1s 3p+ 1s 3d- 1s 3d- 1s 3p+ 1s 3d+ 1s 3d+ 1s 4s 1s 4p- 1s 4s 1s 4p- 1s 4p+ 1s 4d- 1s 4d- 1s 4p+ 1s 4d+ 1s 4f- 1s 4f- 1s 4d+ 1s 4f+ 1s 4f +	detailed jj-split bound states
	2p2s2101 2p2s2102 2s2s2001 2p2s2002 2p2p2201 2p2p2101 2p2p2102 2p2s2001 2p2p2002 2p2p2001	2s 2p- 2s 2p- 2s 2s 2s 2p+ 2p- 2p- 2p- 2p+ 2p- 2p+ 2s 2p+ 2p+ 2p+ 2p+ 2p+	detailed jj-split autoinizing states
	3s2s2002 3p2s2101 3s2p2101 3d2s2101 3p2p2302 3d2p2302 4s2s2002 4p2s2101 4d2s2101 4f2s2101 4s2p2101 4p2p2302 4d2p2302 4f2p2302	2s 3s 2s 3p 2p 3s 2s 3d 2p 3p 2p 3d 2s 4s 2s 4p 2s 4d 2s 4f 2p 4s 2p 4p 2p 4d 2p 4f	jj-configuration averaged autoionizating states
Hy-like	01g01 012p+ 012s- 012p- 013p+ 013s- 013d+ 013p- 013d- 014p+ 014s- 014d+ 014p- 014f+ 014d- 014f-	1s 2p+ 2s- 2p- 3p+ 3s- 3d+ 3p- 3d- 4p+ 4s- 4d+ 4p- 4f+ 4d- 4f-	bound states