CRITICAL RADIANT EXPOSURES FOR PERSISTENT IGNITION OF CELLULOSIC TARGET COMPLEX MATERIALS. Lab. Project 5046-3, Part 124, Final Report

Technical Report · 01 July 1960

OSTI ID:4024881

Bracciaventi, J; DeBold, F

Threshold radiant exposures for ignition of eight kindling materials were measured for simulated nuclear weapon pulses of thermal radiation. The effect of wind and moisture content on ignition was also measured. The distances for threshold ignition of six cellulosic kindling materials (black alpha cellulose, newsprint, fiberboard, cotton, and rayon) ranging in color from dark brown to black averaged 1.5 miles for a 50-kt burst, and 10.5 miles for a 10-Mt burst. For two materials, white and pale buff in color (white alpha cellulose and dry chest grass) thgn distances for threshold ignition averaged 0.9 miles for a 50-kt burst and 6 miles for a 10-Mt burst. Winds up to 10 mph caused differences in radiant exposures for ignition up to 50%, and conditioning at relative humidities from 20 to 100% changed ignition exposures by 70%. (auth)

• Research Organization: Naval Material Lab., Brooklyn
• DOE Contract Number: NONE
• NSA Number: NSA-15-024627
• OSTI ID: 4024881
• Report Number(s): DASA-1194; AD-249476
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CELLULOSE
COMBUSTION
GENERAL AND MISCELLANEOUS
HUMIDITY
MEASURED VALUES
NUCLEAR EXPLOSIONS
RADIATION DOSES
RADIATION EFFECTS
THERMAL RADIATION
WIND