The measurement of void fraction is of importance to the oil industry and chemical industry. In this article,the princip......

The measurement of void fraction is of importance to the oil industry and chemical industry. In this article, the princi......

简要叙述了将强60Co辐射源转换为系列单能γ辐射源的原理和方法,重点介绍了两个关键技术:辐射屏蔽技术和降低能量弥散技术,研制出......