热中子透射法测定湿玻璃纤维材料含硼量时的水分干扰

Moisture disturbance when measuring boron content in wet glass libre materials with thermal neutron transmission method

报道了用热中子透射法测湿玻璃纤维材料含硼量 (B2 O3含量 )时水分干扰的理论计算和实验研究的结果。推导了水分干扰的关系式。对于质量为 16 g的样品 ,水分变化 1% (百分质量 )时影响测量的含硼量值为 0 .2 8% (百分质量 )。

The theoretical calculation and experimental study on the moisture disturbance in the boron content measurement of wet glass fibre materials using the thermal neutron transmission method were reported. The relevant formula of the moisture disturbance was derived. For samples with a mass of 16g, it was found that a moisture varietion of 1% (mass percent) would result in a deviation of 0.28% (mass percent) in the measurement of boron contents.