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Accession Number:
ADB104860
Citation Status:
Active
Citation Classification:
Unclassified
SBI Site Holding Symbol:
NWCTTR
Field(s) & Group(s):
140400 - PHOTOGRAPHY
190400 - ARMOR
Corporate Author:
TRW ELECTRONICS AND DEFENSE SECTOR REDONDO BEACH CA
Unclassified Title:
Flow Field Instrumentation Development.
Title Classification:
Unclassified
Descriptive Note:
Technical rept. 1 Oct 84-1 Nov 85,
Personal Author(s):
Beach,K.
Kwoh,D.
Wuerker,Ralph F.
Gat,N.
Rungaldier,H.
Report Date:
15 Nov 1985
Media Count:
105 Page(s)
Cost:
$12.00
Contract Number:
DNA001-84-C-0440
Report Number(s):
DNA-TR-85-373
Project Number:
Q93QMXA
Task Number:
G000
Monitor Acronym:
DNA
Monitor Series:
TR-85-373
Report Classification:
Unclassified
Distribution Statement:
Distribution limited to U.S. Gov't. agencies and private individuals or enterprises eligible to obtain export-controlled technical data in accordance with regulations implementing 10 U.S.C. 140c; 3 Dec 85. Other requests must be referred to Director, Defense Nuclear Agency, Washington, DC 20305-1000.
Descriptors:
*DUST CLOUDS, *PHOTOGRAPHIC ANALYSIS, *HIGH SPEED PHOTOGRAPHY, *NUCLEAR EXPLOSION DAMAGE,
NUCLEAR EXPLOSION SIMULATION, SHOCK TUBES, X RAY APPARATUS, STREAK CAMERAS, DENSITOMETERS, CINEPHOTOMICROGRAPHY, MICROSCOPES, HIGH SPEED PHOTOGRAPHY, RADIATION ATTENUATION, SOFT X RAY, SHOCK WAVES

Identifiers:
Rotating Disk Cameras, Microdensitometers, Minor Scale Shot, Lofting, Export Control, PE62715, WUDH251399, WU40
Abstract:
This report describes two instruments which have been developed for dust diagnostics. The first is a streak xray camera capable of recording time resolved dust density profiles. The camera uses a soft xray source and an intensified film sheet mounted on a rotatiing plate. The exposure of the film is proportional to the xray attenuation by the lofted dust, and a microdensitometer is used to measure the film density. The use of a calibration technique allows quantitative reading of the dust density directly off the film. The second instrument is a Double-Exposure-Cine-Flash Microscope. The instrument records dark field stop action cine photomicrographs of duct passing through the focal plane of a conventional optical microscope, for the purposes of determining particle size distributions, particle densities and particle velocities as a function of time. The 16mm cine camera runs at 333 frames per second and uses a 400 foot roll of 7250 high speed color film. Dust particles are actively illuminated by focusing the arcs of two internal EG&G 5M-3 flash lamps onto the 0.8 x 1. Omm wide by 0.1mm volume recorded by the microscope. Each flash is about 1/2 microseconds in duration. One lamp is fired three microseconds after the other to show the second position of a particle. The instrument package also includes a static pressure gauge and a back scattering nephelometer.
Abstract Classification:
Unclassified
Distribution Limitation(s):
07 - EXPORT CONTROL; DLSE CERTIFIED
57 - EXPORT CONTROL
Source Code:
413191
Document Location:
DTIC