[continues from 4.2]
The term tauf is the transmission of
the UV and ion filters; it
is computed from the atomic parameters of Carbon and Oxygen (for Polycarbon, i.e. Lexan filter)
or Carbon, Nitrogen, Oxygen (for Polyammide, i.e. Kapton filter),
and Aluminum (both filters) and it is hardcoded in the relevant routines.
While for Lexan filter the values supplied by the filter manufacturer are used, for the Kapton filter we show also the measurements by Jager 1996 (private communication).
Fig. 4.3-I : MECS filter transmission (NB: M2 and M3 are alike)
The relevant component thicknesses (in mm) are contained in the following files:
- for M1 (Kapton) file
kapton.thickness,
==> mm (Poly-A) and /poseidon/lucio/xas/calib/sax/mecs/kapton.thickness mm (Al)
- for M2 (Lexan) file
m2_lexan.thickness,
==> mm (Poly-C) and /poseidon/lucio/xas/calib/sax/mecs/m2_lexan.thickness mm (Al)
- for M3 (Lexan) file
m3_lexan.thickness,
==> mm (Poly-C) and /poseidon/lucio/xas/calib/sax/mecs/m3_lexan.thickness mm (Al)