| Component | Fraction by weight(1) | A | Z |
Density [g/cm3] |
Radiation Length [cm] |
Radiation Length [g/cm2] |
|---|---|---|---|---|---|---|
| K13D2U carbon fiber (Mitsubishi) | 0.805439 | 12.0107 | 6. | 2.2 ( a ) | 19.4091 | 42.70 |
| Epoxy resin Epotek 301-1 (2) | 0.194561 | 11.8991 | 5.9883 | 1.2 ( b, c, d ) | 33.5785 | 41.6374 |
| K13D2U-CE3 | 11.9890 | 5.9977 | 1.603 (3) | 26.5059 | 42.4890 |
| (1) | The weight fractions correspond to a fiber content of 70% by volume. |
| (2) | Since no information on the composition of the cyanate ester matrix was found yet, the one of an eposy resin has been used in this calculation. The density imposed is a conservative value among those found. |
| (3) | The density of the cured composite has been measure in real heat bridges buikt with this material. |
Calculation performed using the method described here and imposing the density.
The corresponding definition of this material presently used for the heat bridge in
/* $Id: AliITSvPPRasymm.cxx,v 1.70 2003/08/14 20:24:51 nilsen Exp $ */is:
AliMaterial(69,"SDD C AL (M55J)$",0.138802E+02,0.71315E+01,0.19837E+01,0.176542E+02,0.99900E+03);