探傷室中的射線量較高，為了避免射線外泄，鉛板在設計的時候就要將防護層的相關事項理清。經過實踐，我們認為鉛板可成為探傷室防護層(ceng)的(de)使用材料。
探傷室防護層的設計與防護層的材料性質有著很大的關系，一般密度大的材料有較好的防護效果。如鉛、鋼鐵、混凝土、鉛玻璃等。但在材料的選用上必須從材料的價格著眼，鉛板的(de)價格遠比鋼鐵便(bian)宜，一(yi)般(ban)應首先考慮(lv)選用(yong)它為防護層(ceng)材料。
在(zai)工(gong)業(ye)，科技(ji)這么發(fa)達的(de)(de)今天，輻射(she)(she)(she)到處存(cun)在(zai)，下面我(wo)們來認識(shi)下電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)輻射(she)(she)(she)。電(dian)(dian)(dian)(dian)(dian)場(chang)和磁(ci)(ci)(ci)場(chang)的(de)(de)交互變(bian)化(hua)產生(sheng)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)波(bo)。電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)波(bo)向空(kong)中(zhong)發(fa)射(she)(she)(she)或泄(xie)漏(lou)的(de)(de)現象叫電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)輻射(she)(she)(she)。過量的(de)(de)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)輻射(she)(she)(she)就造成了電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)污染(ran)。一般來說，雷達系統、電(dian)(dian)(dian)(dian)(dian)視和廣播(bo)發(fa)射(she)(she)(she)系統、射(she)(she)(she)頻感(gan)應及介質加熱設備(bei)、射(she)(she)(she)頻及微(wei)波(bo)醫療設備(bei)、各種(zhong)電(dian)(dian)(dian)(dian)(dian)加工(gong)設備(bei)、通信發(fa)射(she)(she)(she)臺(tai)站(zhan)、衛星地球通信站(zhan)、大型電(dian)(dian)(dian)(dian)(dian)力發(fa)電(dian)(dian)(dian)(dian)(dian)站(zhan)、輸變(bian)電(dian)(dian)(dian)(dian)(dian)設備(bei)、高壓(ya)(ya)及超高壓(ya)(ya)輸電(dian)(dian)(dian)(dian)(dian)線、地鐵列車及電(dian)(dian)(dian)(dian)(dian)氣火(huo)車以及大多數家用電(dian)(dian)(dian)(dian)(dian)器等(deng)都(dou)是可以產生(sheng)各種(zhong)形式、不(bu)同頻率(lv)、不(bu)同強度的(de)(de)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)輻射(she)(she)(she)源(yuan)。輻射(she)(she)(she)就存(cun)在(zai)于我(wo)們的(de)(de)日常生(sheng)活(huo)中(zhong)，所以放輻射(she)(she)(she)勢在(zai)必行(xing)，注意防護(hu)，才能(neng)更(geng)健康