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A study of window-focusing effects on laser ignition for medium-caliber systems / Jeffrey B. Morris and Richard A. Beyer.
- Format:
- Book
- Government document
- Series:
- ARL-TR (Aberdeen Proving Ground, Md.) ; 2743.
- ARL-TR ; 2743
- Language:
- English
- Subjects (All):
- Firearms--Design and construction.
- Firearms.
- Laser beams.
- Refraction.
- refraction.
- Physical Description:
- 1 online resource (ix, 22 pages) : illustrations
- Place of Publication:
- Aberdeen Proving Ground, MD : U.S. Army Research Laboratory, [2002]
- Summary:
- One proposed implementation of medium-caliber laser ignition employs a focusing ball to replace the conventional electric primer. The effects of ball size and igniter stand-off distance have been characterized experimentally with black powder pellets. Ignition threshold and delay experiments were carried out using 4 mm and 6 mm diameter glass beads with standoffs up to 1.5 mm. Ray tracing was used to model the energy distribution of a top-hat beam profile refracted through a focusing ball. Results of the study indicate that the tighter focus of the 4 mm bead can reduce the required laser pulse energy with little effect on the ignition delay.
- Notes:
- Title from title screen (viewed on February 24, 2011).
- "May 2002."
- OCLC:
- 227996197
- Access Restriction:
- Approved for public release.
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