I. DEBRIS MEASUREMENTS AND INTERPRETATION(continued) Page (B) Results for the Rhodium 102 High Altitude Tracer Experiments . M. I. Kalkstein, Air Force Cambridge Research Laboratories . (C) Evidence for High Stratosphere Holdup of Nuclear Bomb Debris BE, A. Marteil, Air Force Cambridge Research Laboratories . (D) Discussion: Adequacy of Radioassay Techniques; Alternate Assay Methods. . oe Panel: I. J. Russell, moderator; G. A. Cowan, L. B. Lockhart, J. P. Friend, R. 5. Claassen, presiding 77 ee 87 . 2... ww eee ee ee 97 Snap Reactor Satellite Re-Entry Radioactivity? F. D. Anderson, Atomics International -- (B) Release of Radioactivity into Space and the Upper Atmosphere from Nuclear Rocketst R. S. Decker, 69 M. I. Kalkstein IV. FUTURE DEBRISINJECTIONS (A) 7 . -- Space Nuclear Propulsion Office, DRD/AEC (C) Some Aspects of the LASL Rover Flight Safety Program. L. D. P. King, Los Alamos Scientific Laboratory . . . . . | 97 _- (D) On Project OrionT R. F. Prater, Air Force Special Weapons Center V. INSTRUMENTATION AND EXPERIMENT PHILOSOPHIES J. D, Shreve, presiding (A) . Sampling the Upper Atmosphere for Particulate Matter . . .. a 101 eee ele 101 . - oe 113 . . 131 . 135 M. Markels, Jr., Atlantic Research Corporation (B) Measurement of Air-Borne Radioactivity by Gamma-Ray Scintillation Spectrometryt ooo ee P. F. Gustafson, Argonne National Laboratory ee (C) A Cryogenic Air-Sampling Rocket . . D. F. Burcham,* A. M. Haire, Aerolab Development Company, H. E,. Karig, National Engineering Science Company (D) Theory and Proposed Experiments for Study of Diffusive Collection . eee ee D. Q. Matejka, J. R, Banister, D. J, Rigali, Sandia Laboratory (E) Tracer Methods for Study of World-Wide Aerosol Dispersal? I. J. Russell, Air Force Special Weapons Center -- {F) Some Recent Developments in Balloon- Borne Stratospheric Sampling Systems .eee R. €. Wood, General Mills, Inc. . . 149 (G) Discussion: . . 159 Panel: J. R,. Sampling Principles and Rockets . Banister, moderator: M. Markets, . . Jr., P. F. Gustafson, H. R. Vaughn “Speaker presenting the paper. lelassified paper, published separately in Part I], =CR-42: FA Classified appendix to this paper appears in Part ff. SCR-d2l . .