基于Na^22+放射性同位素的密度计在矿浆检测上的运用

Application of Na^22+radioisotope densitometer in pulp Detection

放射性同位素检测仪表的出现解决了一些极端工况普通仪表无法测量的难题,但传统使用的核源主要为Cs137和Co60,这两种同位素的活度较大,对使用过程要求极为严格,稍有不慎,就有可能造成辐射安全事故。以Na^22+作为核源的测量仪表,它的活度≤1×10^6Bq,低于国家要求的豁免度水平,在国家生态环境部的豁免清单之内,可以当做普通仪表使用。

The emergence of radioisotope detection instruments has solved the problem that ordinary instruments cannot measure in some extreme conditions,but the traditional nuclear sources are MAINLY Cs137 and Co60.These two isotopes have high activity and strict requirements on the use process.A slight mistake may cause radiation safety accidents.Na^22+as the nuclear source of the measuring instrument,its activity≤1×10^6Bq,lower than the exemption level required by the state,in the list of exemption of the Ministry of Ecology and Environment,can be used as an ordinary instrument.