Warning, /epic/compact/materials.xml is written in an unsupported language. File is not indexed.
0001 <!-- SPDX-License-Identifier: LGPL-3.0-or-later -->
0002 <!-- Copyright (C) 2022 Jihee Kim, Zhenyu Ye, Sylvester Joosten -->
0003
0004 <materials>
0005 <!--
0006 Air by weight from
0007
0008 http://www.engineeringtoolbox.com/air-composition-24_212.html
0009 -->
0010 <material name="Air">
0011 <D type="density" unit="g/cm3" value="0.0012"/>
0012 <fraction n="0.754" ref="N"/>
0013 <fraction n="0.234" ref="O"/>
0014 <fraction n="0.012" ref="Ar"/>
0015 </material>
0016 <!-- default RHIC vacuum is 1e-9 mbar == 1e-15 g/cm3 -->
0017 <material name="Vacuum">
0018 <D type="density" unit="g/cm3" value="1e-15"/>
0019 <fraction n="0.754" ref="N"/>
0020 <fraction n="0.234" ref="O"/>
0021 <fraction n="0.012" ref="Ar"/>
0022 </material>
0023 <material name="HeGas">
0024 <D type="density" unit="g/cm3" value="0.0000838"/>
0025 <fraction n="1" ref="He"/>
0026 </material>
0027 <material name="Epoxy">
0028 <D type="density" value="1.3" unit="g/cm3"/>
0029 <composite n="44" ref="H"/>
0030 <composite n="15" ref="C"/>
0031 <composite n="7" ref="O"/>
0032 </material>
0033 <material name="Quartz"> <!-- different density than `SiliconDioxide` -->
0034 <D type="density" value="2.2" unit="g/cm3"/>
0035 <composite n="1" ref="Si"/>
0036 <composite n="2" ref="O"/>
0037 </material>
0038 <material name="Epotek">
0039 <D type="density" value="1.2" unit="g/cm3"/>
0040 <composite n="5" ref="H"/>
0041 <composite n="3" ref="C"/>
0042 <composite n="2" ref="O"/>
0043 </material>
0044 <material name="Sapphire">
0045 <D type="density" value="3.98" unit="g/cm3"/>
0046 <composite n="2" ref="Al"/>
0047 <composite n="3" ref="O"/>
0048 </material>
0049 <material name="G10">
0050 <D type="density" value="1.7" unit="g/cm3"/>
0051 <fraction n="0.08" ref="Cl"/>
0052 <fraction n="0.773" ref="Quartz"/>
0053 <fraction n="0.147" ref="Epoxy"/>
0054 </material>
0055 <material name="Polystyrene">
0056 <D value="1.032" unit="g/cm3"/>
0057 <composite n="19" ref="C"/>
0058 <composite n="21" ref="H"/>
0059 <constant name="BirksConstant" value="0.126*mm/MeV"/>
0060 </material>
0061 <material name="Water">
0062 <D value="1.00" unit="g/cm3"/>
0063 <composite n="1" ref="O"/>
0064 <composite n="2" ref="H"/>
0065 </material>
0066 <material name="Steel235">
0067 <D value="7.85" unit="g/cm3"/>
0068 <fraction n="0.998" ref="Fe"/>
0069 <fraction n=".002" ref="C"/>
0070 </material>
0071 <material name="Steel1020">
0072 <D value="7.86" unit="g/cm3"/>
0073 <fraction n="0.993" ref="Fe"/>
0074 <fraction n=".002" ref="C"/>
0075 <fraction n=".005" ref="Mn"/>
0076 </material>
0077 <material name="Steel1008">
0078 <comment>
0079 SAE AISI 1008 cold-rolled low-carbon steel
0080 https://www.azom.com/article.aspx?ArticleID=6538
0081 </comment>
0082 <D value="7.85" unit="g/cm3"/>
0083 <fraction n="0.994" ref="Fe"/>
0084 <fraction n=".004" ref="Mn"/>
0085 <fraction n=".001" ref="C"/>
0086 <fraction n=".0005" ref="S"/>
0087 <fraction n=".0005" ref="P"/>
0088 </material>
0089 <material name="Aluminum5083">
0090 <D value="2.650" unit="g/cm3"/>
0091 <fraction n="0.94" ref="Al"/>
0092 <fraction n="0.045" ref="Mg"/>
0093 <fraction n="0.007" ref="Mn"/>
0094 <fraction n="0.002" ref="Fe"/>
0095 <fraction n="0.002" ref="Si"/>
0096 <fraction n="0.0015" ref="Cr"/>
0097 <fraction n="0.00125" ref="Zn"/>
0098 <fraction n="0.00075" ref="Ti"/>
0099 <fraction n="0.00050" ref="Cu"/>
0100 </material>
0101 <material name="SiliconOxide"> <!-- different density than `SiliconDioxide` -->
0102 <D type="density" value="2.65" unit="g/cm3"/>
0103 <composite n="1" ref="Si"/>
0104 <composite n="2" ref="O"/>
0105 </material>
0106 <material name="SiliconDioxide"> <!-- density from `G4_SILICON_DIOXIDE` (NIST DB) -->
0107 <D type="density" value="2.32" unit="g/cm3"/>
0108 <composite n="1" ref="Si"/>
0109 <composite n="2" ref="O"/>
0110 </material>
0111 <material name="BoronOxide">
0112 <D type="density" value="2.46" unit="g/cm3"/>
0113 <composite n="2" ref="B"/>
0114 <composite n="3" ref="O"/>
0115 </material>
0116 <material name="SodiumOxide">
0117 <D type="density" value="2.65" unit="g/cm3"/>
0118 <composite n="2" ref="Na"/>
0119 <composite n="1" ref="O"/>
0120 </material>
0121 <material name="PotassiumOxide">
0122 <D type="density" value="2.320" unit="g/cm3"/>
0123 <composite n="2" ref="K"/>
0124 <composite n="1" ref="O"/>
0125 </material>
0126 <material name="AluminumOxide">
0127 <D type="density" value="3.89" unit="g/cm3"/>
0128 <composite n="2" ref="Al"/>
0129 <composite n="3" ref="O"/>
0130 </material>
0131 <material name="AluminumNitrate">
0132 <D type="density" value="3.255" unit="g/cm3"/>
0133 <composite n="1" ref="Al"/>
0134 <composite n="1" ref="N"/>
0135 </material>
0136 <material name="ArsenicOxide">
0137 <D type="density" value="3.738" unit="g/cm3"/>
0138 <composite n="2" ref="As"/>
0139 <composite n="3" ref="O"/>
0140 </material>
0141 <material name="SiliconNitride">
0142 <D type="density" value="3.17" unit="g/cm3"/>
0143 <composite n="3" ref="Si"/>
0144 <composite n="4" ref="N"/>
0145 </material>
0146 <material name="LeadOxide">
0147 <D type="density" value="9.530" unit="g/cm3"/>
0148 <composite n="1" ref="Pb"/>
0149 <composite n="1" ref="O"/>
0150 </material>
0151 <material name="PyrexGlass">
0152 <D type="density" value="2.23" unit="g/cm3"/>
0153 <fraction n="0.806" ref="SiliconOxide"/>
0154 <fraction n="0.130" ref="BoronOxide"/>
0155 <fraction n="0.040" ref="SodiumOxide"/>
0156 <fraction n="0.023" ref="AluminumOxide"/>
0157 </material>
0158 <material name="PyrexGlass25">
0159 <D type="density" value="0.5575" unit="g/cm3"/>
0160 <fraction n="0.806" ref="SiliconOxide"/>
0161 <fraction n="0.130" ref="BoronOxide"/>
0162 <fraction n="0.040" ref="SodiumOxide"/>
0163 <fraction n="0.023" ref="AluminumOxide"/>
0164 </material>
0165 <material name="PbGlass">
0166 <D type="density" value="3.86" unit="g / cm3"/>
0167 <fraction n="0.5080" ref="LeadOxide"/>
0168 <fraction n="0.4170" ref="SiliconOxide"/>
0169 <fraction n="0.0422" ref="PotassiumOxide"/>
0170 <fraction n="0.0278" ref="SodiumOxide"/>
0171 <fraction n="0.0050" ref="ArsenicOxide"/>
0172 </material>
0173 <material name="SciGlass">
0174 <D type="density" value="4.22" unit="g / cm3"/>
0175 <fraction n="0.3875" ref="Ba"/>
0176 <fraction n="0.2146" ref="Gd"/>
0177 <fraction n="0.1369" ref="Si"/>
0178 <fraction n="0.2610" ref="O"/>
0179 <constant name="BirksConstant" value="0.0333*mm/MeV"/>
0180 </material>
0181 <documentation level="3">
0182 #### Material for TOF
0183 a level 3 doc
0184 </documentation>
0185 <material name="CarbonFoam">
0186 <D type="density" value="0.09" unit="g/cm3"/>
0187 <fraction n="1.00" ref="C"/>
0188 </material>
0189 <material name="CFRPMix">
0190 <D type="density" value="0.03" unit="g/cm3"/>
0191 <fraction n="0.074" ref="O"/>
0192 <fraction n="0.870" ref="C"/>
0193 <fraction n="0.023" ref="H"/>
0194 <fraction n="0.033" ref="Cl"/>
0195 </material>
0196 <material name="CFRPMix2">
0197 <D type="density" value="1.60" unit="g/cm3"/>
0198 <fraction n="0.074" ref="O"/>
0199 <fraction n="0.870" ref="C"/>
0200 <fraction n="0.023" ref="H"/>
0201 <fraction n="0.033" ref="Cl"/>
0202 </material>
0203 <material name="NOVEC7200">
0204 <D type="density" value="1.44" unit="g/cm3"/>
0205 <fraction n="0.061" ref="O"/>
0206 <fraction n="0.019" ref="H"/>
0207 <fraction n="0.272" ref="C"/>
0208 <fraction n="0.648" ref="F"/>
0209 </material>
0210 <documentation level="3">
0211 #### Carbon fiber
0212 a level 3 doc
0213 </documentation>
0214 <material name="CarbonFiber">
0215 <D type="density" value="1.5" unit="g/cm3"/>
0216 <fraction n="0.65" ref="C"/>
0217 <fraction n="0.35" ref="Epoxy"/>
0218 </material>
0219 <material name="CarbonFiber_50D">
0220 <D type="density" value="0.75" unit="g/cm3"/>
0221 <fraction n="0.65" ref="C"/>
0222 <fraction n="0.35" ref="Epoxy"/>
0223 </material>
0224 <material name="Rohacell31">
0225 <D type="density" value="0.032" unit="g/cm3"/>
0226 <composite n="9" ref="C"/>
0227 <composite n="13" ref="H"/>
0228 <composite n="2" ref="O"/>
0229 <composite n="1" ref="N"/>
0230 </material>
0231 <material name="Rohacell31_50D">
0232 <D type="density" value="0.016" unit="g/cm3"/>
0233 <composite n="9" ref="C"/>
0234 <composite n="13" ref="H"/>
0235 <composite n="2" ref="O"/>
0236 <composite n="1" ref="N"/>
0237 </material>
0238 <material name="RPCGasDefault" state="gas">
0239 <D type="density" value="0.0037" unit="g/cm3"/>
0240 <composite n="209" ref="C"/>
0241 <composite n="239" ref="H"/>
0242 <composite n="381" ref="F"/>
0243 </material>
0244 <material name="PolystyreneFoam">
0245 <D type="density" value="0.0056" unit="g/cm3"/>
0246 <fraction n="1.0" ref="Polystyrene"/>
0247 </material>
0248 <material name="Kapton">
0249 <D value="1.43" unit="g/cm3"/>
0250 <composite n="22" ref="C"/>
0251 <composite n="10" ref="H"/>
0252 <composite n="2" ref="N"/>
0253 <composite n="5" ref="O"/>
0254 </material>
0255 <material name="PEEK">
0256 <D value="1.37" unit="g/cm3"/>
0257 <composite n="19" ref="C"/>
0258 <composite n="12" ref="H"/>
0259 <composite n="3" ref="O"/>
0260 </material>
0261 <material name="TungstenPowder">
0262 <D value="11.25" unit="g / cm3"/>
0263 <fraction n="0.954" ref="W"/>
0264 <fraction n="0.040" ref="Ni"/>
0265 <fraction n="0.006" ref="Fe"/>
0266 </material>
0267 <material name="TungstenDens23">
0268 <D value="17.7" unit="g / cm3"/>
0269 <fraction n="0.925" ref="W"/>
0270 <fraction n="0.066" ref="Ni"/>
0271 <fraction n="0.009" ref="Fe"/>
0272 </material>
0273 <material name="TungstenDens24">
0274 <D value="17.8" unit="g / cm3"/>
0275 <fraction n="0.93" ref="W"/>
0276 <fraction n="0.061" ref="Ni"/>
0277 <fraction n="0.009" ref="Fe"/>
0278 </material>
0279 <material name="TungstenDens25">
0280 <D value="18.2" unit="g / cm3"/>
0281 <fraction n="0.950" ref="W"/>
0282 <fraction n="0.044" ref="Ni"/>
0283 <fraction n="0.006" ref="Fe"/>
0284 </material>
0285 <material name="AvgTungstenScFi">
0286 <D value="10.15" unit="g / cm3"/>
0287 <fraction n="0.948" ref="W"/>
0288 <fraction n="0.052*19./40" ref="C"/>
0289 <fraction n="0.052*21./40" ref="H"/>
0290 </material>
0291 <material name="WPowderplusEpoxy">
0292 <D type="density" unit="g/cm3" value="10.95"/>
0293 <fraction n="0.97" ref="Tungsten"/>
0294 <fraction n="0.03" ref="Epoxy"/>
0295 </material>
0296 <material name="CarbonFiber_25percent">
0297 <D type="density" value="0.375" unit="g / cm3"/>
0298 <fraction n="1.0" ref="CarbonFiber"/>
0299 </material>
0300 <material name="CarbonFiber_15percent">
0301 <D type="density" value="0.225" unit="g / cm3"/>
0302 <fraction n="1.0" ref="CarbonFiber"/>
0303 </material>
0304 <material name="Rohacell31_50percent">
0305 <D type="density" value="0.016" unit="g / cm3"/>
0306 <fraction n="1.0" ref="Rohacell31"/>
0307 </material>
0308 <material name="Rohacell31_15percent">
0309 <D type="density" value="0.0048" unit="g / cm3"/>
0310 <fraction n="1.0" ref="Rohacell31"/>
0311 </material>
0312 <material name="BoratedPolyethylene5">
0313 <D value="0.93" unit="g / cm3"/>
0314 <fraction n="0.612" ref="C"/>
0315 <fraction n="0.222" ref="O"/>
0316 <fraction n="0.116" ref="H"/>
0317 <fraction n="0.050" ref="B"/>
0318 </material>
0319 <material name="SiliconCarbide">
0320 <D value="3.1" unit="g / cm3"/>
0321 <composite n="1" ref="Si"/>
0322 <composite n="1" ref="C"/>
0323 </material>
0324 <material name="SiliconCarbide_6percent">
0325 <D value="0.186" unit="g / cm3"/>
0326 <fraction n="1.0" ref="SiliconCarbide"/>
0327 </material>
0328 <material name="PlasticScint">
0329 <D type="density" unit="g/cm3" value="1.032"/>
0330 <composite n="9" ref="C"/>
0331 <composite n="10" ref="H"/>
0332 <constant name="BirksConstant" value="0.126*mm/MeV"/>
0333 </material>
0334 <material name="PbWO4">
0335 <D type="density" value="8.3" unit="g / cm3"/>
0336 <composite n="1" ref="Pb"/>
0337 <composite n="1" ref="W"/>
0338 <composite n="4" ref="O"/>
0339 <constant name="BirksConstant" value="0.0333*mm/MeV"/>
0340 </material>
0341 <material name="Ar10CO2">
0342 <D type="density" value="1.802" unit="mg / cm3"/>
0343 <composite n="0.891" ref="Argon"/>
0344 <!--<composite n="0.109" ref="CarbonDioxide"/>-->
0345 <composite n="0.036" ref="C"/>
0346 <composite n="0.073" ref="O"/>
0347 </material>
0348 <material name="Mylar">
0349 <D type="density" value="1.39" unit="g/cm3" />
0350 <fraction n="0.62502108" ref="C"/>
0351 <fraction n="0.041960452" ref="H"/>
0352 <fraction n="0.33301847" ref="O"/>
0353 </material>
0354 <material name="MylarMLI">
0355 <D type="density" value="0.08" unit="g/cm3" />
0356 <fraction n="0.62502108" ref="C"/>
0357 <fraction n="0.041960452" ref="H"/>
0358 <fraction n="0.33301847" ref="O"/>
0359 </material>
0360 <material name="Nomex">
0361 <D type="density" value="0.029" unit="g/cm3" />
0362 <composite n="14" ref="C"/>
0363 <composite n="10" ref="H"/>
0364 <composite n="2" ref="N"/>
0365 <composite n="2" ref="O"/>
0366 </material>
0367 <material name="Fr4_Epoxy">
0368 <D type="density" value="1.2" unit="g/cm3"/>
0369 <composite n="2" ref="H"/>
0370 <composite n="2" ref="C"/>
0371 </material>
0372 <material name="Fr4">
0373 <D type="density" value="1.86" unit="g/cm3"/>
0374 <fraction n="0.528" ref="Quartz"/>
0375 <fraction n="0.472" ref="Fr4_Epoxy"/>
0376 </material>
0377 <material name="Tyvek">
0378 <D type="density" value="0.3529" unit="g/cm3"/>
0379 <composite n="2" ref="C"/>
0380 <composite n="4" ref="H"/>
0381 </material>
0382 <material name="TiO2">
0383 <D type="density" value="4.2" unit="g/cm3"/>
0384 <composite n="1" ref="Ti"/>
0385 <composite n="2" ref="O"/>
0386 </material>
0387 <material name="Ti02Epoxy">
0388 <D type="density" value="2.3" unit="g/cm3"/>
0389 <fraction n="0.67" ref="Epoxy"/>
0390 <fraction n="0.33" ref="TiO2"/>
0391 </material>
0392 <material name="Cfrp_intt">
0393 <D type="density" value="1.69" unit="g/cm3"/>
0394 <composite n="10" ref="C"/>
0395 <composite n="6" ref="H"/>
0396 <composite n="1" ref="O"/>
0397 </material>
0398 <material name="Graphite">
0399 <D type="density" value="2.21" unit="g/cm3"/>
0400 <composite n="1" ref="C"/>
0401 </material>
0402 <material name="PolyvinylAcetate">
0403 <D type="density" value="1.19" unit="g/cm3"/>
0404 <composite n="4" ref="C"/>
0405 <composite n="6" ref="H"/>
0406 <composite n="2" ref="O"/>
0407 </material>
0408 <material name="Plexiglass">
0409 <D type="density" value="1.19" unit="g/cm3"/>
0410 <composite n="5" ref="C"/>
0411 <composite n="8" ref="H"/>
0412 <composite n="2" ref="O"/>
0413 </material>
0414 <material name="StainlessSteel">
0415 <D type="density" value="8.3" unit="g / cm3"/>
0416 <fraction n="0.74" ref="Fe"/>
0417 <fraction n="0.18" ref="Cr"/>
0418 <fraction n="0.08" ref="Ni"/>
0419 </material>
0420 <material name="Copper">
0421 <D type="density" value="8.96" unit="g / cm3"/>
0422 <fraction n="1." ref="Cu"/>
0423 </material>
0424 <material name="ZDC_Tungsten">
0425 <D type="density" value="18.73" unit="g / cm3"/>
0426 <fraction n="0.943" ref="W"/>
0427 <fraction n="0.038" ref="Ni"/>
0428 <fraction n="0.019" ref="Cu"/>
0429 </material>
0430 <material name="ZDC_PET">
0431 <D type="density" value="1.38" unit="g/cm3"/>
0432 <composite n="8" ref="H"/>
0433 <composite n="10" ref="C"/>
0434 <composite n="4" ref="O"/>
0435 </material>
0436 <material name="ZDC_Scintillator">
0437 <D type="density" value="1.032" unit="g/cm3"/>
0438 <composite n="8" ref="C"/>
0439 <composite n="8" ref="H"/>
0440 </material>
0441 <material name="ZDC_Polyethylene">
0442 <D type="density" value="0.96" unit="g/cm3"/>
0443 <composite n="2" ref="C"/>
0444 <composite n="4" ref="H"/>
0445 </material>
0446 <material name="MMGAS_ResistivePaste">
0447 <D type="density" unit="g/cm3" value="0.77906"/>
0448 <composite n="1" ref="C"/>
0449 </material>
0450 <material name="MMGAS_InoxForMesh" state="solid">
0451 <D type="density" unit="g/cm3" value="2.8548"/>
0452 <fraction n="0.19" ref="Cr"/>
0453 <fraction n="0.68" ref="Fe"/>
0454 <fraction n="0.02" ref="Mn"/>
0455 <fraction n="0.10" ref="Ni"/>
0456 <fraction n="0.01" ref="Si"/>
0457 </material>
0458 <material name="Ar90IsoButane" state="gas">
0459 <D type="density" unit="g/cm3" value="0.00170335"/>
0460 <fraction n="0.90" ref="Ar"/>
0461 <fraction n="0.0826586" ref="C"/>
0462 <fraction n="0.0173414" ref="H"/>
0463 </material>
0464 <material name="ZDC_WSciFiMixture">
0465 <D type="density" value="10.17" unit="g/cm3"/>
0466 <composite n="0.950" ref="W"/>
0467 <composite n="0.009" ref="H"/>
0468 <composite n="0.041" ref="C"/>
0469 </material>
0470 <material name="ZDC_Polyethylene">
0471 <D type="density" value="0.96" unit="g/cm3"/>
0472 <composite n="2" ref="C"/>
0473 <composite n="4" ref="H"/>
0474 </material>
0475 <material name="WSciFi_UCLA_Abs">
0476 <D type="density" value="12.4" unit="g / cm3"/>
0477 <fraction n="0.96" ref="W"/>
0478 <fraction n="0.04" ref="Polystyrene"/>
0479 </material>
0480 <material name="SciFiPb_Scintillator">
0481 <D type="density" value="1.049" unit="g / cm3"/>
0482 <fraction n="0.077" ref="H"/>
0483 <fraction n="0.921" ref="C"/>
0484 <fraction n="0.001" ref="N"/>
0485 <fraction n="0.001" ref="O"/>
0486 <constant name="BirksConstant" value="0.126*mm/MeV"/>
0487 </material>
0488 <material name="SciFiPb_Glue">
0489 <D type="density" value="1.180" unit="g / cm3"/>
0490 <fraction n="0.091" ref="H"/>
0491 <fraction n="0.822" ref="C"/>
0492 <fraction n="0.032" ref="N"/>
0493 <fraction n="0.055" ref="O"/>
0494 </material>
0495 <material name="SciFiPb_PbGlue">
0496 <D type="density" value="8.558" unit="g / cm3"/>
0497 <fraction n="0.9622" ref="Pb"/>
0498 <fraction n="0.0378" ref="SciFiPb_Glue"/>
0499 </material>
0500 <material name="SciFiPb_PbGlue_Edge">
0501 <D type="density" value="4.231" unit="g / cm3"/>
0502 <fraction n="0.805" ref="Pb"/>
0503 <fraction n="0.195" ref="SciFiPb_Glue"/>
0504 </material>
0505 <material name="Brass">
0506 <D type="density" value="8.41" unit="g / cm3"/>
0507 <fraction n="0.70" ref="Cu"/>
0508 <fraction n="0.30" ref="Zn"/>
0509 </material>
0510 <material name="Brass360">
0511 <D type="density" unit="g/cm3" value="8.49"/>
0512 <fraction n="0.6045" ref="Cu"/>
0513 <fraction n="0.3550" ref="Zn"/>
0514 <fraction n="0.0370" ref="Pb"/>
0515 <fraction n="0.0035" ref="Fe"/>
0516 </material>
0517 <material name="NbTi">
0518 <D type="density" value="6.54" unit="g / cm3"/>
0519 <fraction n="0.50" ref="Nb"/>
0520 <fraction n="0.50" ref="Ti"/>
0521 </material>
0522 <material name="Solder">
0523 <D type="density" value="8.60" unit="g / cm3"/>
0524 <fraction n="0.40" ref="Pb"/>
0525 <fraction n="0.60" ref="Sn"/>
0526 </material>
0527 <material name="SolenoidCoil">
0528 <D type="density" value="8.73" unit="g / cm3"/>
0529 <fraction n="0.9201" ref="Cu"/>
0530 <fraction n="0.0638" ref="NbTi"/>
0531 <fraction n="0.0161" ref="Solder"/>
0532 </material>
0533 <material name="LYSO"> <!-- given by the Taiwan Applied Crystals -->
0534 <D type="density" unit="g/cm3" value="7.125"/>
0535 <fraction n="0.71813" ref="Lu"/>
0536 <fraction n="0.03613" ref="Y"/>
0537 <fraction n="0.06338" ref="Si"/>
0538 <fraction n="0.18046" ref="O"/>
0539 <fraction n="0.00190" ref="Ce"/>
0540 </material>
0541 </materials>
