Accession Number:

AD0712750

Title:

ON THE ORIGIN OF SHOCKWAVES FROM CONDENSED EXPLOSIONS IN AIR. PART 3. AIRSHOCK RADIATION FROM SMALL EXPLOSIONS AT SEA-LEVEL CONDITIONS

Descriptive Note:

Technical rept.

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1970-06-19

Pagination or Media Count:

127.0

Abstract:

Photographic and spectral observations have been made of the earliest stages of HE explosions. Strong in the neighborhood of Mach number 20, non-luminous airshocks have been photographed as close in as 12-charge radius from the explosive surface. The present results support earlier observations on the existence of a transmitted airshock created by the detonation shockwave. The spectra obtained show no evidence of the expected shock-air species. Identification of the spectral features suggests that the intense early light of an explosion is created within the fireball by a wide range of chemical species requiring from about 2 to 20 ev for excitation.

Subject Categories:

  • Explosions
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE