In his workshop he has handmaidens he has forged out of gold who can move and who help him in his work. ... With Athena, he [is] important in the life of the city. The two [are] the patrons of handicrafts, the arts which along with agriculture are the support of civilization.
HEPHAESTUS is tool built around the periodic table of the elements and tables of absorption coefficients of the elements. HEPHAESTUS consists of eight utilities:
- Absorption coefficents of the elements
- Absorption lengths of compounds
- Chemical data for the elements
- Absorption lengths of ion chambers
- A chart of electronic transitions of the emission lines
- An absorption edge finder
- An fluorescence line finder
- Anomalous scattering factors for the elements
- The Elam database: Radiat. Phys. Chem. 63 (2002) pp. 121-128. (This is used by default in HEPHAESTUS.)
- The McMaster tables: W.H. McMaster et al. Compilation of X-ray Cross Sections. Lawrence Radiation Laboratory Report UCRL-50174, National Bureau of Standards, pub. (1969).
- The Henke tables: Henke, Gullikson, and Davis, Atomic Data and Nuclear Data Tables 54:2 (1993)
- The Chantler tables: J. Phys. Chem. Ref. Data 24 p. 71 (1995)
- The Cromer-Liberman tables: derived from Brennan and Cowen, Rev. Sci. Instrum, 63, p. 850 (1992).
You might find that HEPHAESTUS is particularly useful at the synchrotron.
HEPHAESTUS is written entirely in the Perl programming language using the perl/Tk graphical toolkit for its interface and Matt Newville's IFEFFIT for access to the Cromer-Liberman tables
HEPHAESTUS is software under development. While it is working quite well, you are quite likely to find bugs and other forms of misbehavior. If you download and use HEPHAESTUS, I presume that you understand this and that you will agree to report on your experiences so that I may further improve the code.
HEPHAESTUS is free software, as are the things upon which it depends: Perl, IFEFFIT, and PGPLOT. See the license for details.
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The absorption utility. This tells you the edge and line energies of the elements as well as computing the absorption of the pure element |
S c r e e n s h o t s |
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The formula utility. This computes the absorption length of a material given its stoichiometry and density or molarity. | |
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The ion chamber utility. This computes the absorption of an ion chamber and the total flux on the chamber given gain and voltage readings. | |
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The chart showing the electronic transitions of the x-ray emission lines. |
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