1. This paper introduces radioprotection design in the X-ray shelter.

2. The application of the spray containing SOD in radioprotection is a great breakthrough.

3. The mechanism of EGB radioprotection was also discussed in this paper.

4. Catheter ablation of atrial fibrillation is usually done with complex technique and long time of radiation, and radioprotection can not be overlooked thereby.

5. Objective To evaluate low dose CT scanning in detecting infant and child's intracranial disease and its significance in radioprotection.

6. Conclusion:Minor dose staged MSCT scanning is suitable for examining the thoracic disease of conventional and it plays an important role in radioprotection.

7. In order to avoid the harm of X-ray to patients, radioprotection must be paid more attention, and radiation dosage should be minimized.

8. Conclusion: Low dose CT scanning is suitable for examining the lung disease of children and it plays an important role in radioprotection .