Accession Number:

AD0733781

Title:

Proton Activated Recession Sensor (PARS). Volume 1.

Descriptive Note:

Final rept.,

Corporate Author:

MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF

Personal Author(s):

• Armini,A. J.
• Langsam,L. M.

Report Date:

1971-09-01

Pagination or Media Count:

206.0

Abstract:

The program was conducted to study the feasibility of using proton activation techniques to provide an in situ line source of radioactivity in ATJ-S graphite for application to the measurement of rates of recession on a graphite nosetip during reentry. The Be7 produced by high energy protons E28MeV in a graphite targets emits monoenergetic gamma radiation E 0.48MeV. These gamma rays are detected and counted as a function of reentry time to monitor recession of the nosetip. Author

Descriptors:

• *ABLATION
• *PROTON BOMBARDMENT
• *ATMOSPHERE ENTRY
• GRAPHITE
• GAMMA EMISSION
• BERYLLIUM
• LITHIUM
• DIFFUSION
• DECAY SCHEMES
• DETECTORS
• GAMMA COUNTERS

Subject Categories:

• Guided Missile Reentry Vehicles
• Nuclear Instrumentation
• Radioactivity, Radioactive Wastes and Fission Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE