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Question Simulation Blocked 

Forum: Processes Involving Optical Photons
Date: 05 Nov, 2010
From: Ibrahim <Ibrahim>

Hi,

I am using geant4 for x ray imaging physics purpose. When I irradiate the scintillator screen Gd2O2S with X ray photons, optical photons are created in Gd2O2S and spread into the Silicon where they must be detected. Silicon is divided into 1152 x 1254 pixels and the size of each pixel is 50 x 50 um.To get the image of the object I calculated the flux of optical photons per pixel. The program works well and I get the image of the object which I would like to image, but I am still having the following problem: If I want to get an image of high quality in order to calculate MTF I have to irradiate the detector with 200 millions of X rays or 500 millions etc... I irradiated the detector with only 100 millions of X Rays and the calculation started running on our cluster but after some hours the calculation was blocked and did not continue! Does anybody know why? I highly appreciate your suggestions and helps and thank you in advance.

Ibrahym

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1 Feedback: Re: Simulation Blocked   (Gumplinger Peter - 05 Nov, 2010)
(_ None: RE: Simulation Blocked   (Penny, Robert D. - 05 Nov, 2010)
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