1. The high yield neutron tube used in neutron radiation imaging has been researched, For high yield and complicated structure, the beam quality and ion optics system is required as good as possible.

2. Objective: Neutron radiation can cause severe damages to the intestine which is hard to recover.

3. Some (mathematic)-physical equations that describe the natural neutron radiation field are theoretically established.

4. The results show that neutron radiation embrittlement, corrosion damage, fatigue and wear are the key issues which cause aging or degradation of un replaceable or difficultly replaceable components.

5. The effects of neutron radiation on the mechanical and thermal properties of the thermal-insulation materials and their transmutation are studied in this paper.

6. A portable and reliable neutron radiation protective tool is proposed.

7. The neutron radiation field around the injector and transmission line is a pulsed field, with low duty ratio and high instantaneous dose rate.

8. In the neutron radiation environment there occurs the change in C-V characteristics of the Tar-actor diodes. At the given bias the junction capacitance decreases with increase of neutron fluence.

9. Based on the development of digital neutron imaging system, the restoration algorithm was presented to remedy the geometric unsharpness of digital neutron radiation images.

10. Object: Firstly, we prepared PVA/PEO hydrogel materials and studied their Applications on neutron radiation protection in this issue.

11. The dirt and debris become contaminated with the radioisotopes generated by the explosion or activated by neutron radiation and fall to earth as fallout.

12. Adding additives or materials containing crystal water, boracic acid, boron salt and lithium salt would improve the ability of shielding neutron radiation.

13. In this paper, the neutron hardening ability of hardened X7805RH is studied and the neutron radiation damage threshold of hardened X7805RH with different loads is estimated.

14. The new PVA/PEO hydrogels containing metal ions provide simple and effective shielding materials for high LET neutron radiation.

15. RSCAM program system, using Monte Carlo method with albedo approach, is used to calculate streaming neutron radiation field in reactor cavity and containment operating hall.

15. try its best to gather and build good sentences.

16. The paper introduces the concept and development of radiation weighting factor, and analyzes the relationship between neutron radiation weighting factor and dose monitoring.

17. A neutron detector aboard the lunar orbiter found a decrease in neutron radiation that could represent either water or hydrogen in certain areas.