[Gate-users] Materials with user-defined isotope abundances

[Konstantinos P. Chatzipapas]

Hello again,
Your definition is correct and Heavyoxygen corresponds to 18-O. Good job.!

Regards,Konstantinos
----------------------------------------------------- Konstantinos Chatzipapas
    Medical Physicist, MSc
       University of Patras
 web: Physics Magazine 

    Στις Κυριακή, 4 Απριλίου 2021, 08:20:40 μ.μ. EEST, ο χρήστης APSARA TENNAKOON <apsara at connect.hku.hk> έγραψε:  
 
 Thank you Konstantinos,
Could you help advise if GATE allows me to define a material containing a specific isotope of an element (e.g. 18-O). I am trying to simulate interactions of a proton beam in 18-O enriched water.
I have tried to define a new element 'Heavyoxygen' (S = Oh) with Z = 8., A = 17.999 g/mole, and a new material Heavywater composed of H and Oh in GateMaterials.db. My concern is if GATE recognizes Oh as 18-O and knows to use the associated cross-sections for interactions with e.g. protons.  
Please advise. 
Thank you!Apsara
On Sat, Apr 3, 2021 at 3:04 PM APSARA TENNAKOON <apsara at connect.hku.hk> wrote:

Thank you, Konstantinos,

Sorry, to clarify, I am trying to define 18-O enriched water in GATE. Does GATE allow one to define an isotope of an element (e.g. 18-O) - and hence 18-O water - in GateMaterials.db, and have e.g. protons interacting with it using the relevant reaction cross-sections for 18-O? 
Thank you!
Apsara Tennakoon
On Sat, Apr 3, 2021 at 1:08 PM Konstantinos P. Chatzipapas <konhat88 at yahoo.gr> wrote:

Hello Apsara,
What exactly do you mean by enriched materials?? You can insert any kind of material in GateMaterials.db.
https://opengate.readthedocs.io/en/latest/materials.html


Regards,Konstantinos
----------------------------------------------------- Konstantinos Chatzipapas
    Medical Physicist, MSc
       University of Patras
 web: Physics Magazine 

    Στις Παρασκευή, 2 Απριλίου 2021, 10:44:25 μ.μ. EEST, ο χρήστης APSARA TENNAKOON <apsara at connect.hku.hk> έγραψε:  
 
 Dear GATE users,
Is it possible to define enriched materials in GATE? I would like to simulate a proton beam in e.g. 50% 18-O enriched water, and score proton-induced activation, to attempt to replicate the TOPAS simulations in this work: 
https://doi.org/10.1016/j.radphyschem.2021.109385

Thank you!
Best regards,
Apsara TennakoonMasters student - Medical PhysicsThe University of Sydney_______________________________________________
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