NIST Physical Measurements Laboratory LLNL V-Division LLNL
Apr 15, 2009

As of March 2009, the FLYCHK code has a new version that utilizes the better data sets of auto-ionization rates, collisional excitation cross-sections and photoionization cross-sections for super-configuration levels, that is for ions with more than 3 electrons. Users may find a substantial change in average charge states for M-shell or N-shell ions of high Z atoms. Though the new version has been thoroughly tested to our capacity, authors would be greatly thankful for a feedback on any potential errors in the code.

Nov 4, 2008

A new manual is added.

Jun 22, 2007

FLYCHK has 100 users!

Mar 9, 2007

The new version of FLYCHK is here:

  1. improved mixture option: Before, one can only establish a fixed for a mixture option. Now, one can specify the time-dependent of the other species in a history file. An example will be presented shortly.
  2. fast computation for non-Maxwellian case FLYCHK can use an arbitrary electron energy distribution function fe(E) for collisional rates but it takes much longer to run the case since rate calculations involve the numerical integration over fe(E). A new scheme is implemented to expedite the calculations.

Mar 5, 2007

Q&A section is added.

Feb 9, 2007
  1. A few forbidden transitions are added for He- and Li-like ions of Z<27.
  2. As a result, the relative Li-like satellites of Z <27 ions may be different from the old calculations.
  3. Collisional data by using arbitrary electron energy distribution function are corrected.