低照射量

137

Cs和

60

Co-γ射线辐照柞蚕卵，同生产上已推广的Ra-Be中子源辐照一样，有显著增产作用，三者增产幅度为11.3~14.0%。以Am-Be中子源辐照，亦增产显著达13.7%，分析两种中子源辐照时其中子与γ射线的贡献，认为两种电离辐射均具增产作用。

Exposure of wild silkworm eggs to γ-ray from

137

Cs or

60

Co

in low dose was found to have remarkable effect as that of neutron from Ra-Be source conventionally used to increase production.

Neutron from Am-Be source was also found to have such effect.

By analyzing the dose contribution of neutron and γ-ray from these two neutron sources

it was that both neutron and γ-rау could produce effect on increasing production.