title test feii in high density limit
c
c commands controlling continuum =========
black 25000 K
ionization -10
c
c commands for density & abundances =========
hden 18
c force a high electron density to insure collisions dominate
eden 18
c
c commands controlling geometry  =========
constant tempera 4
stop zone 1
c
c other commands for details     =========
atom feii
iterate
c want to test collision only limit 
no induced processes
c
c commands controlling output    =========
save overview "feii_hin.ovr"
save performance "feii_hin.per"
save monitors "feii_hin.asr" last
save FeII continuum "feii_hin.fe2con" last units microns
c
c commands giving the monitors    =========
monitor feii departure, value 1 std 0.003
c
c feii_hin.in
c class limit 
c ========================================
c 

This checks that, at high particle densitites, in which
the gas should be in collisional
equilibrium, the level populations of the large model Fe+ ion
go to the proper values, where the departure coefficients
are all equal to unity.