硼捉中子治療超熱中子射柱先導實驗

Preliminary Studies on Filtered Epithermal Neutron Beam for BNCT

袁立基(Liq-Ji Yuan) ； 胡浚明(Chun-Ming Hu) ； 趙良曉(L. S. Chao) ； 陳光耀(Kuang Y. Chen)

《放射治療與腫瘤學》 1卷2期 (1994/06) Pp. 129-134

https://doi.org/10.6316/TRO/199401(2)129

摘要

以重水和鋁的體積比為13.6/86.4與鉍、鎘等金屬組合成中子濾屏的阻离特性，在清華水池式核子反應器E-1實驗管內進行實驗探討。超熱中子的穿透率為8.43x10^(-4)為熱中子的77倍，超熱中子與熱呂子通率比為74/26，快中子通率已在可偵測極限的範圍下。伽馬等效劑量與中子通率比為1.13pSv·n^(-1)·cm^2淺癌劑量，及0.905 pSv·n^(-1)·cm^2深部劑量。

關鍵字

1)硼捉中子療法 ； 2)超熱中子射柱 ； 3)中子濾屏

並列摘要

Characterization studies of a neutron filter of a combination of D2O, aluminum,bismuth and cadmium were carride out experimentally for a neutron beam at the E-1 beam port of THOR. The volume ratio of D2O to Al was 13.6/86.4. The epithermal neutron flux vs thermal is 74/26 at outlet of the beam port, but the fast neutron flux at the same point is far below the detection limit. The rate of gamma dose equivalent vs neutron flux is 1.13pSv·n^(-1)·cm^2 for skin dose and 0.905 pSv·n^(-1)·cm^2 for depth dose.

並列關鍵字

Boron Neutron Capture Therapy(BNCT) ； Epithermal Neutron Beam ； Neutron Filter