利用热中子活化样品,合适的照射位置是取得良好活化效果的关键.经过MCNP模拟和实验测量,给出了采用国产Am-Be中子源进行热中子活化的样品照射位置的合理范围.%Appropriate irradiation position is the key reason for good activation effect of the sample which is activated by thermal neutrons. Through MCNP simulation and experimental measurements, a reasonable range of the irradiation position of the sample activated by thermal neutrons for Am - Be neutron source is given.
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