Recent content by lingleo

Any one familiar with MCNP4C efficiency calculation can help me with this? My cal. result for 1.836MeV(e.g.) is always small (6.16447E-05 ) compared to it should be(3.78E-004 by a professional business software), here is the inp file, is there anything wrong with the geometry define or source...

Thanks for your answer. I also doubted it was the normal tally fluctuation. From the research papers it seems GM tube will work well within the temperature range.

Anyone familiar with GM tube, please share some experience on the effect of temperature to GM tube performance, how does it influence? I found our GM tube tally has increase a little as the temperature increased rapidly from 4 degree to 55 degree, I wonder is it a casualness or a indication of...