Study on Ignition Time of Radiation Cargo in Irradiation Room under Stuck Radioactive Sources

Abstract:

Ignition temperatures of common radiation cargo in irradiation room were measured through the experiments, minimum ignition temperature is 210 °C. In order to discuss the temperature variation and temperature field under stuck radioactive sources, the fire scenario was presented and simulated by FDS. The results show that temperatures rise rapidly when stuck radioactive source broke out within an hour. As the growth of the time, temperatures in irradiation room are rising, but the rising rate is slowing. The temperature field in the irradiation room tends to be the same after three hours. The stuck radioactive source occurred after 2.4 days later, local temperatures can reach 210 °C, and radiation cargo may be ignited.

• Periodical: Applied Mechanics and Materials (Volumes 580-583)
• Pages: 2607-2611
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.580-583.2607
• Online since: July 2014
• Authors: Xiao Lin Yao*
• Keywords: Irradiation Room, Radioactive Sources, Stuck Radioactive Sources, Time to Ignition

References

[1] Meiyang Zheng, Guohua Jin, Genfang Shen: Nuclear Electronics & Detection Technology Vol. 30 (2010), p.1224.

[2] Rongsheng Yu: Chinese Journal of Radiological Health Vol. 10 (2001), p.133.

[3] Shengeng Fan, Yongxian Zhang, Changheng Xu: Atomic Energy Science and Technology Vol. 23 (1989), p.88.

[4] Haitao Qiao, Hang Li: Annual Report For China Institute of Atomic Energy Vol. 12 (2011), p.252.

[5] Xuefu Xiao: Radiation Protection Bulletin Vol. 31 (2011), p.24.

[6] Junhai Zhao, Maohong Yu, Yunhe Liu, et al: Journal of Northwestern Institute of Architectural Engineering Vol. 12 (1988), p.1.