| Component | Fraction by weight | A | Z | (Z/A) |
Density [g/cm3] |
Radiation Length [cm] |
Radiation Length [g/cm2] |
|---|---|---|---|---|---|---|---|
| SMD capacitor 0402, X7R | 0.496384 | 92.5591 | 38.9062 | 0.42034 | 6.15370 | 1.79896 | 11.0703 |
| Solder Sn 60% Pb 40% | 0.503616 | 154.1060 | 62.8000 | 0.40751 | 8.52358 | 0.89681 | 7.64401 |
| SMDcap.0402,X7R,solder | 123.5591 | 50.9395 | 0.41228 | 7.15567 | 1.26215 | 9.01354 |
Calculation performed using the method described here .
The corresponding definition of this material in
/* $Id: AliITSvPPRasymm.cxx,v 1.70 2003/08/14 20:24:51 nilsen Exp $ */is :
AliMaterial(77,"SDD X7R capacitors$",0.1157516E+03,0.477056E+02,0.67200E+01,0.14236E+01,0.99900E+03);