<div dir="ltr">Hello, <div><br></div><div>we also experiencing similar issue, there is definitely a bug somewhere, currently still not identified. It worked with previous versions, or with proton or carbon 11. </div><div><br>
</div><div>Which physic list are your using ?</div><div><br></div><div>Sincerely, </div><div>David</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, May 28, 2014 at 8:20 AM, Mikhail Polkovnikov <span dir="ltr"><<a href="mailto:mikhail.polkovnikov@gmail.com" target="_blank">mikhail.polkovnikov@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear gate-users,<br>
<br>
<br>
I try to simulate a Bragg curve from carbon beam with energy of 270 MeV per nucleon.<br>
My setting for the beam are:<br>
<br>
/gate/source/addSource Carb12 gps<br>
<br>
/gate/source/Carb12/gps/<u></u>particle ion<br>
/gate/source/Carb12/gps/ion 6 12 6 0 # zeros<br>
#/gate/source/Carb12/gps/ion 6 11 6 0 # valid data<br>
/gate/source/Carb12/gps/pos/<u></u>type Beam<br>
/gate/source/Carb12/gps/pos/<u></u>rot1 0 1 0<br>
/gate/source/Carb12/gps/pos/<u></u>rot2 1 0 0<br>
/gate/source/Carb12/gps/pos/<u></u>shape Circle<br>
/gate/source/Carb12/gps/pos/<u></u>centre 0 0 0 mm<br>
/gate/source/Carb12/gps/pos/<u></u>sigma_x 2 mm<br>
/gate/source/Carb12/gps/pos/<u></u>sigma_y 2 mm<br>
/gate/source/Carb12/gps/ene/<u></u>mono 3240 MeV # 270 MeV per nucleon<br>
/gate/source/Carb12/gps/ene/<u></u>type Mono<br>
/gate/source/Carb12/gps/<u></u>direction 0 0 1<br>
<br>
The problem that DoseActor file contains only zeros, but when i change ion type from carbon 12 to carbon 11 "/gate/source/Carb12/gps/ion 6 11 6 0" the dose distribution data for the Bragg curve becomes correct. What is the proper way for carbon 12 beam?<br>
<br>
<br>
Best regards,<br>
<br>
Mikhail,<br>
Institute for High Energy Physics, Protvino<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr">David Sarrut, Phd<br>Directeur de recherche CNRS<br>CREATIS, UMR CNRS 5220, Inserm U 1044<div>Centre de lutte contre le cancer Léon Bérard<br>28 rue Laënnec, 69373 Lyon cedex 08<br>
Tel : 04 78 78 51 51 / 06 74 72 05 42<br><a href="http://www.creatis.insa-lyon.fr/~dsarrut" target="_blank">http://www.creatis.insa-lyon.fr/~dsarrut</a><br>_________________________________</div><div> "2 + 2 = 5, for extremely large values of 2"<br>
_________________________________</div></div>
</div>