RE: [fluka-discuss]: Question about Cherenkov light

From: lzfneu <>
Date: Sun, 21 Feb 2016 11:07:12 +0000

Dear Mikhail,
  Thanks for you respond, I have followed you instructions to make a correction of my input file and the refraction coefficient of the GLASS material changes to equal 1.5. However, I still cannnot collect any Cherenkov light in the left side of the glass material. could you please help me to check it? I have attatched the corrected input file and source.f file in the attatchment. Thanks in advance !
Best regards
Zhefu Lee
Subject: Re: [fluka-discuss]: Question about Cherenkov light
Date: Sun, 21 Feb 2016 11:25:08 +0300

    On 21.02.2016 07:27, lzfneu wrote:

      Dear all,


        I want to collect the Cherenkov light in the left side of my
        geometry for electron as one degree incident angular into glass
        fiber. I consulted the example in the maunual and made a
        modification, but i cannot collect any light.

        I am new in this field and have attatched the input file and
        source.f file in the attatchment.

        could anyone help me? Thanks in advance.


        Zhefu Lee

    Dear Zhefu Lee,


    1. You have an error in your geometry definition (BLKBODY region).


    must be




    2. Delete EMF and PHOTONUC cards.


    3. Are you sure that the refraction coefficient of the GLASS
    material equals 1? I don't thick you will get any results with such


    4. Try increase threshold for electrons in case of very long
    simulation time.


    Best regards


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Received on Sun Feb 21 2016 - 13:40:54 CET

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