In recent years, many medical linear accelerators do not equip a beam stopper and such linacs generate not only high energy photons but high energy electrons. Therefore, there is possibility of shield necessity against bremsstrahlen and photoneutron generated by high energy electron beam. However, there are a few physical data or no recommendation. In this report, yield efficiency and leakage dose of bremsstrahlen and photoneutron was calculated using EGS Monte Carlo simulations. Then, to verify result by calculation, leakage dose by photoneutron was measured with a rem counter. The result clearly shows that leakage dose of bremsstrahlen and photoneutron generated by 15 MeV electron beam is negligible.
|Number of pages||9|
|Publication status||Published - 2006 Dec 1|
|Event||13th EGS Users' Meeting in Japan 2006 - Tsukuba, Japan|
Duration: 2006 Aug 8 → 2006 Aug 10
|Other||13th EGS Users' Meeting in Japan 2006|
|Period||06/8/8 → 06/8/10|
ASJC Scopus subject areas