α射(she)(she)線(xian)(xian)(xian)(xian)(xian)是一種(zhong)帶(dai)電(dian)粒(li)子(zi)流,由(you)于帶(dai)電(dian),它所到之處(chu)很(hen)容(rong)易引(yin)起電(dian)離(li)(li)。α射(she)(she)線(xian)(xian)(xian)(xian)(xian)有(you)很(hen)強的電(dian)離(li)(li)本領,這種(zhong)性質(zhi)既可利(li)用。也帶(dai)來一定(ding)破壞(huai)處(chu),對(dui)人體內組(zu)織破壞(huai)能力(li)較(jiao)(jiao)大。由(you)于其(qi)質(zhi)量較(jiao)(jiao)大,穿透(tou)能力(li)差(cha),在空氣中的射(she)(she)程只有(you)幾厘米,只要一張紙或健康的皮膚就(jiu)能擋住。 β射(she)(she)線(xian)(xian)(xian)(xian)(xian)也是一種(zhong)高速(su)帶(dai)電(dian)粒(li)子(zi),其(qi)電(dian)離(li)(li)本領比(bi)(bi)α射(she)(she)線(xian)(xian)(xian)(xian)(xian)小(xiao)得(de)多,但穿透(tou)本領比(bi)(bi)α射(she)(she)線(xian)(xian)(xian)(xian)(xian)大,但與X、γ射(she)(she)線(xian)(xian)(xian)(xian)(xian)比(bi)(bi)β射(she)(she)線(xian)(xian)(xian)(xian)(xian)的射(she)(she)程短(duan),很(hen)容(rong)易被鋁箔(bo)、有(you)機(ji)玻(bo)璃(li)等(deng)材料(liao)吸收。 X射(she)(she)線(xian)(xian)(xian)(xian)(xian)和γ射(she)(she)線(xian)(xian)(xian)(xian)(xian)X射(she)(she)線(xian)(xian)(xian)(xian)(xian)和γ射(she)(she)線(xian)(xian)(xian)(xian)(xian)的性質(zhi)大致相同,是不帶(dai)電(dian)波長短(duan)的電(dian)磁波,波長短(duan),穿透(tou)力(li)強,射(she)(she)程遠(yuan),有(you)危險,必須屏蔽。