TY - BOOK AU - Barber, H. Bradford, ed. TI - Penetrating Radiation Systems and Applications IV T2 - Proceedings of SPIE; V. 4786 SN - 9780819445537 (Print) PY - 2002/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/4786 ER -