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Initiation of insensitive explosives by laser energy
- Publication Year :
- 1972
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1972.
-
Abstract
- Instantaneous longitudinal detonations were observed in confined columns of pentaerythritol tetranitrate (PETN), cyclotrimethylene trinitramine (RDX), and tetryl when these materials were pulsed with light energy from a focused Q-switch ruby laser. The laser energy ranged from 0.5 to 4.2 J with a pulse width of 25 ns. Enhancement of the ignition mechanism is hypothesized when a 100-nm (1000-A) thick aluminum film is vacuum-deposited on the explosive side of the window. Upon irradiation from the laser, a shock is generated at the aluminum explosive interface. Steady state detonations can be reached in less than 0.5 microseconds with less than 10% variation in detonation velocity for PETN and RDX.
- Subjects :
- Masers
Subjects
Details
- Language :
- English
- Database :
- NASA Technical Reports
- Notes :
- NAS7-100
- Publication Type :
- Report
- Accession number :
- edsnas.19720017842
- Document Type :
- Report