Media Codes =========== Contact: N. West. Oxford The generic media code mnemonics are held in id_media.inc. The MEDA offsets refer to the MEDA titles bank of optical properties (see media.html for instructions on how to obtain these from the MEDP_MEDA look-up table). Also note that the generic "code" is equivalent to the EGS4 media number. Generic Physical MEDA Code & Mnemonic Media Code Offset Description --------------- ---------- ------ ----------- 1 1 Vacuum 1 IDMH2O 100 84 Light water 2 IDMD2O 200 167 Heavy water 3 IDMNOR 300 250 Norite 4 IDMACR 400 333 Acrylic (standard) 401 416 Acrylic (good) 402 499 Acrylic (bad 4 inch) 403 582 Acrylic (Poor) 450 665 Acrylic (Dark) 499 748 Acrylic (variable) 5 IDMNIC 500 831 Nickel 6 IDMSS 600 914 Stainless Steel 601 997 PMT passive coating 602 1080 Petals 603 1163 Dynode stack 7 IDMPYR 700 1246 Pyrex/Glass 8 IDMAIR 800 1329 Air 9 IDMALU 900 1412 Aluminium 10 IDMKEV 1000 1495 Kevlar 11 IDMMAG 1100 1578 Barium Ferrite Feroxdur (magnet material) 12 IDMGAS 1200 1661 NCD counter gas 13 IDMABSW 1300 1744 Water/ABS sludge (for use in panels) 14 IDMABSA 1400 1827 Air/ABS mix for use in panels 15 IDMPTC 1500 1910 Photocathode 16 IDMNAI 1600 1993 Sodium Iodide 17 IDMPOLYETH 1700 2076 Polyethylene 18 IDMCONCRETE 1800 2159 Concrete 19 IDMPLASTICSCINT 1900 2242 Plastic Scintillator 20 IDMQUARTZ 2000 2325 Quartz 21 IDMLEAD 2100 2408 Lead 22 IDMGERMANIUM 2200 2491 Germanium 23 IDMCOPPER 2300 2574 Copper 24 IDMARGON 2400 2657 Argon 25 IDMPTFE 2500 2740 PTFE 26 IDMHE3NCDGAS 2600 2823 He3 NCD gas 27 IDMHE4NCDGAS 2700 2906 He4 NCD gas 28 IDMARCO2 2800 2989 Argon CO2 mixture 29 IDMMINERALOIL 2900 3072 Mineral Oil 30 IDMEPOXYGE 3000 SNO Ge detector epoxy resin 31 IDMKCL 3100 SNO Ge detector potassium chloride For more information see media.html