MOP99901 (POSTER)
	Calculation of Gas Bremsstrahlung for Defense in the Linear Section of the Electron Storage Rings of the BEPCII		173
	Y. Xu, J.M. Wu, G. Pei, T.H. Li (IHEP), J.H. Han (AHU)
	MOP99902 (POSTER)
	Digital Radiation Protection		176
	T.H. Li, Z.X. Chen, Q.J. Zhang, N. Li, L.S. An (IHEP)
	MOP99903 (POSTER)
	The Upgrade Project of the Beijing Electron Positron Collider's (BEPCII) Personnel Security Interlock Entrance Guard System.		178
	T.H. Li, P.Q. Liu, Z.X. Chen (IHEP), F. Zhu (Beijing Access Company)