| Component | Fraction by weight | A | Z | (Z/A) |
Density [g/cm3] |
Radiation Length [cm] |
Radiation Length [g/cm2] |
|---|---|---|---|---|---|---|---|
| H2 | 0.111898 | 1.00794 | 1. | 0.99212 | 0.0000899 | 731000. | 61.280 |
| O2 | 0.888102 | 15.9994 | 8. | 0.50002 | 0.0013298 | 25740. | 34.24 |
| H2O | 14.3219 | 7.21671 | 0.50389 | 1.00 | 36.0184 | 36.0184 | |
| H2O from PDG | 0.55509 | 1.00 | 36.1 | 36.1 |
Calculation performed using the method described here and imposing the density.
The corresponding definition of this material in
/* $Id: AliITSvPPRasymm.cxx,v 1.70 2003/08/14 20:24:51 nilsen Exp $ */is :
AliMaterial(12,"WATER$",0.14322E+02,0.72167E+01,0.10000E+01,0.35759E+02,0.94951E+02);