<lccdd>
  <properties>
    <matrix name="RINDEX__Vacuum" coldim="2" values="
      1.0*eV 1.0
      5.1*eV 1.0
      "/>
    <matrix name="RINDEX__Air" coldim="2" values="
      1.0*eV 1.00029
      5.1*eV 1.00029
      "/>
    <matrix name="RINDEX__Quartz" coldim="2" values="
      1.0*eV 1.46
      5.1*eV 1.46
      "/>
    <matrix name="RINDEX__N2" coldim="2" values="
      1.0*eV 1.00033
      4.0*eV 1.00033
      5.1*eV 1.00033
      "/>
    <matrix name="RINDEX__Pyrex" coldim="2" values="
      1.0*eV 1.5
      4.0*eV 1.5
      5.1*eV 1.5
      "/>
    <matrix name="ABSLENGTH__Pyrex" coldim="2" values="
      1.0*eV 10.0*cm
      4.0*eV 10.0*cm
      5.1*eV 10.0*cm
      "/>
    <matrix name= "REFLECTIVITY_mirror" coldim="2" values="
      1.0*eV  0.9
      4.0*eV  0.9
      5.1*eV  0.9
      "/>
    <matrix name="RINDEX__Aerogel" coldim="2" values="
      1.0*eV 1.030
      4.0*eV 1.030
      5.1*eV 1.030
      "/>
    <matrix name="ABSLENGTH__Aerogel" coldim="2" values="
      1.0*eV 4.0*cm
      4.0*eV 4.0*cm
      5.1*eV 4.0*cm
      "/>
    <matrix name="RINDEX__Acrylic" coldim="2" values="
      1240*eV/1100  1.49
      1240*eV/600   1.49
      1240*eV/400   1.49
      "/>
  </properties>
  <materials>
    <material name="AirOptical">
      <D type="density" unit="g/cm3" value="0.0012"/>
      <fraction n="0.754" ref="N"/>
      <fraction n="0.234" ref="O"/>
      <fraction n="0.012" ref="Ar"/>
      <property name="RINDEX" ref="RINDEX__Air"/>
      <property name="ABSLENGTH"               coldim="2" values="1*eV  200*m  5*eV  200*m"/>
    </material>
    <material name="N2cherenkov">
      <D type="density" value="0.00125" unit="g/cm3"/>
      <composite n="1" ref="N"/>
      <property name="RINDEX"  ref="RINDEX__N2"/>
    </material>
    <material name="PyrexGlassOptical">
      <D type="density" value="2.23" unit="g/cm3"/>
      <fraction n="0.806" ref="SiliconOxide"/>
      <fraction n="0.130" ref="BoronOxide"/>
      <fraction n="0.040" ref="SodiumOxide"/>
      <fraction n="0.023" ref="AluminumOxide"/>
      <property name="RINDEX" ref="RINDEX__Pyrex"/>
      <property name="ABSLENGTH" ref="ABSLENGTH__Pyrex"/>
    </material>
    <material name="AerogelOptical">
      <D value="0.2" unit="g / cm3"/>
      <fraction n="0.625" ref="SiliconOxide"/>
      <fraction n="0.374" ref="SiliconOxide"/>
      <fraction n="0.1"   ref="C"/>
      <property name="RINDEX" ref="RINDEX__Aerogel"/>
      <property name="ABSLENGTH" ref="ABSLENGTH__Aerogel"/>
    </material>
    <material name="AcrylicOptical">
      <D type="density" value="1.18" unit="g/cm3"/>
      <composite n="5" ref="C"/>
      <composite n="2" ref="O"/>
      <composite n="8" ref="H"/>
      <property name="RINDEX" ref="RINDEX__Acrylic"/>
    </material>
  </materials>
  <surfaces>
    <comment> For the values of "finish", model and type, see TGeoOpticalSurface.h !
    </comment>

    <opticalsurface finish="polished" model="glisur" name="MirrorOpticalSurface" type="dielectric_metal" value="0">
      <property name="REFLECTIVITY" ref="REFLECTIVITY_mirror"/>
      <property name="RINDEX"       coldim="2" values="1.034*eV  1.5   4.136*eV  1.5"/>
      <!--<property name="EFFICIENCY"   ref="EFFICIENCY0x8b77240"/>-->
    </opticalsurface>

    <!--
    <opticalsurface name="mirror2" finish="polished" model="glisur" type="dielectric_dielectric">
      <property name="REFLECTIVITY"            coldim="2" values="1.034*eV  0.8   4.136*eV  0.9"/>
      <property name="EFFICIENCY"              coldim="2" values="2.034*eV  0.8   4.136*eV  1.0"/>
      <property name="RINDEX"                  coldim="2" values="1.034*eV  1.5   4.136*eV  1.5"/>
    </opticalsurface>
    -->

    <opticalsurface finish="polished" model="unified" name="MRICH_MirrorOpticalSurface" type="dielectric_metal" value="0">
    </opticalsurface>
    <opticalsurface finish="polished" model="unified" name="MRICH_LensOpticalSurface" type="dielectric_dielectric" value="0">
      <property name="REFLECTIVITY"            coldim="2" values="1240*eV/1100  0.08   1240*eV/400  0.08"/>
      <!--
      <property name="RINDEX"                  coldim="2" values="2.034*eV  1.56  4.136*eV  1.56"/>
      <property name="SPECULARLOBECONSTANT"    coldim="2" values="2.034*eV  0.3   4.136*eV  0.3 "/>
      <property name="SPECULARSPIKECONSTANT"   coldim="2" values="2.034*eV  0.2   4.136*eV  0.2 "/>
      <property name="BACKSCATTERCONSTANT"     coldim="2" values="2.034*eV  0.2   4.136*eV  0.2 "/>
      -->
    </opticalsurface>

    <opticalsurface finish="polished" model="unified" name="MRICH_PhotoSensorOpticalSurface" type="dielectric_dielectric" value="0">
      <!--
      <property name="RINDEX"                  coldim="2" values="2.034*eV  1.35  4.136*eV  1.40"/>
      <property name="SPECULARLOBECONSTANT"    coldim="2" values="2.034*eV  0.3   4.136*eV  0.3 "/>
      <property name="SPECULARSPIKECONSTANT"   coldim="2" values="2.034*eV  0.2   4.136*eV  0.2 "/>
      <property name="BACKSCATTERCONSTANT"     coldim="2" values="2.034*eV  0.2   4.136*eV  0.2 "/>
      -->
    </opticalsurface>

    <opticalsurface finish="polished" model="unified" name="MRICH_AerogelOpticalSurface" type="dielectric_dielectric" value="0">
      <!--
      <property name="RINDEX"                  coldim="2" values="2.034*eV  1.010  4.136*eV  1.010"/>
      <property name="SPECULARLOBECONSTANT"    coldim="2" values="2.034*eV  0.3   4.136*eV  0.3 "/>
      <property name="SPECULARSPIKECONSTANT"   coldim="2" values="2.034*eV  0.2   4.136*eV  0.2 "/>
      <property name="BACKSCATTERCONSTANT"     coldim="2" values="2.034*eV  0.2   4.136*eV  0.2 "/>
      -->
    </opticalsurface>

  </surfaces>
</lccdd>