TY - BOOK AU - Doty, F. Patrick, ed. TI - Penetrating Radiation Systems and Applications T2 - Proceedings of SPIE; V. 3769 SN - 9780819432551 (Print) PY - 1999/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3769 ER -