[Gate-users] possibkle problem with materials

[Nicolas Ivanovich]

Dear Gate Users

When I run my simulation, gate shows me the following message:

[GateSystemListManager::CheckScannerAutoCreation:
    Creating new system based on volume inserter 'scanner'
   GateMaterialDatabase: did not load properties table for material
'Silicon'.
     This is only a problem when OPTICAL PHOTONS are transported in this
material.'

Is this a real problem. If it is so, how can I resolve it?

Thank you very much