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</o:shapelayout></xml><![endif]--></head><body lang=NL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Dear Gate users,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I’m simulating Iodine 131 beta emitter in a water phantom. I131 emits betas with different average energies. My source definition is as following:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/addSource iodine131 gps<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/setActivity 0.00001 Ci<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/particle e-<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>#/gate/source/iodine131/gps/ene/type Arb<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>#/gate/source/iodine131/gps/hist/type arb<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/hist/point 0.0694 0.02100<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/hist/point 0.0869 0.00650<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/hist/point 0.0966 0.07270<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/hist/point 0.1916 0.89900<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/hist/point 0.2002 0.00050<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/hist/point 0.2832 0.00048<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/setForcedUnstableFlag true<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/setForcedHalfLife 692902 s<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/type Volume<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/shape Sphere<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/radius 0.1 mm<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/centre 0. 0. 24.45 cm<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/angtype iso<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/mintheta 0. deg<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/maxtheta 180. deg<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/minphi 0. deg<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/gps/maxphi 360. deg<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>/gate/source/iodine131/attachTo mainBoxEntrance<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>In the histopoints, the first and second values are Eaverage and probability density of different betas.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I have few questions:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>1-Do I need to use energytype Arb and histoname Arb? When I use them I get an error message: Error: IntType Unknown Type.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>2-Should I use all the histopoints of one type of beta from 0-Emax? Or histopoints includes only average energy per beta type?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>3- When I run the simulation, the phasespace energy goes up to 1 MeV whereas the maximum energy point I’m using is 0.2832! Do you maybe know the reason?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>4- Do you maybe know a database for beta energy distribution of I131 (except RADAR)? The datapoints in RADAR seem to me strange!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Leila<o:p></o:p></span></p></div>
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