[Gate-users] Error in element/material definition

[Minh Phuong Nguyen]

Dear GATE users,

I am trying to simulate a PET scanner geometry (Discovery 690), based on
this work:
https://github.com/UCL/STIR-GATE-Connection
I attach a macro here also (geometry.mac). When running this macro in GATE,
I got an error in material definition as below. I searched in the gate-user
archive but not found this kind of error.

Since the STIR-GATE-Connection should work fine, I guess the problem could
be on my local software. Does anyone have any idea how to solve this
problem?

[G4]
[G4] **************************************************************
[G4]  Geant4 version Name: geant4-10-06-patch-02    (29-May-2020)
[G4]                        Copyright : Geant4 Collaboration
[G4]                       References : NIM A 506 (2003), 250-303
[G4]                                  : IEEE-TNS 53 (2006), 270-278
[G4]                                  : NIM A 835 (2016), 186-225
[G4]                              WWW : http://geant4.org/
[G4] **************************************************************
[G4]
[Core-0] Initialization of geometry
[Core-0] Initialization of physics
[Core-0] Initialization of actors
[Core-0]
[Core-0] *************************************************
[Core-0]  GATE version 9.0 (March 2020)
[Core-0]  Copyright : OpenGATE Collaboration
[Core-0]  Reference : Phys. Med. Biol. 49 (2004) 4543-4561
[Core-0]  Reference : Phys. Med. Biol. 56 (2011) 881-901
[Core-0]  Reference : Med. Phys. 41(6)    (2014)
[Core-0]  http://www.opengatecollaboration.org
[Core-0] *************************************************
[Core-0]
[Core-0] You are using Geant4 version 10.6.2
[Core-0] Starting macro geometry.mac
[G4-cerr]
-------- EEEE ------- G4Exception-START -------- EEEE -------
*** G4Exception : DecodingException
      issued by : GateMDBFieldDecoder::DecodingException

*The definition of the element/material 'Air' is incorrect: The value found
for the state field ('gas') was not recognized.*
You should check this definition in the database file.
*** Fatal Exception *** core dump ***
[G4-cerr]  **** Track information is not available at this moment
[G4-cerr]  **** Step information is not available at this moment
[G4-cerr]
-------- EEEE -------- G4Exception-END --------- EEEE -------

[G4-cerr]
[G4-cerr] *** G4Exception: Aborting execution ***

Kind regards,
Minh Phuong Nguyen
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