Accession Number : AD0676510

Title :   RADIATION INTENSITY PRODUCED BY EXPLOSIVELY EXCITED ARGON GAS.

Descriptive Note : Final rept. 28 Dec 67-30 Aug 68,

Corporate Author : DENVER RESEARCH INST COLO MECHANICS DIV

Personal Author(s) : Blunt,Robert M.

Report Date : 12 SEP 1968

Pagination or Media Count : 26

Abstract : A study was made of the time history of the luminous intensity produced by a shock wave in argon gas. The shock wave was produced by detonating a 45 gram charge of composition C-4 attached to one end of a 28 mm diameter glass tube about 1.25 meters long. The tube contained argon gas at a nominal 630 torr pressure. Several charge shapes were used; there were also two tests in which 100 grain 'primacord' located on the axis of the glass tube replaced the charge of C-4. Best results were obtained from an unlined conical cavity charge. The peak value was 3.9 x 10 to the 7th power candela, 6100 candela seconds from a shock moving at approximately 8300 meters/second. (Author)

Descriptors :   (*NIGHT WARFARE, *AERIAL PHOTOGRAPHY), (*PHOTOFLASH BOMBS, RARE GASES), ARGON, DETONATIONS, SHOCK WAVES, LIGHT, INTENSITY, DETONATING CORD, EXPLOSIVE CHARGES, EXCITATION, AERIAL RECONNAISSANCE, ILLUMINATION

Subject Categories : Cartography and Aerial Photography
      Military Operations, Strategy and Tactics

Distribution Statement : APPROVED FOR PUBLIC RELEASE