用裂变径迹法测量强中子源的中子注量分布

Measurement of neutron fluence distribution for an intensive beam generator by using the fission track method

本文叙述了用裂变径迹法测量强中子发生器中子注量分布的方法。测量了T(d,n)~4He反应氘束0°方向不同距离的中子注量分布,并同铝活化法和理论计算结果进行了比较;还测量了距靶11.3cm的平面上不同角度的中子注量分布,由此结果计算出半径为11.3cm球面上的中子注量分布,并与理论计算结果进行了比较。两者在实验误差范围内基本符合。

A measurement method of neutron fluence distribution for intensive beam generators based on the fission tracks was described. The distribution at different distances along the 0oooooooooo direction of the deuteron beam from the target was measured and the results were compared with the results of Al activation and the theoretical calculation. The r.eutron fluence distribution for different angles on the plane which was 11.3 cm from the target, was also measured. The neutron fluence distribution on the spherical surface was then calculated and. compared with the theoretical calculation. The two agree within the experimental error.