Dice Throw/UHF/SHF transmission experiment. Volume III. Final data reduction and interpretation. Topical report, 16 November 1976-19 March 1979
Technical Report
·
OSTI ID:6687525
This report presents the final results from an rf propagation experiment fielded during the DICE THROW HE test held at the White Sands Missile Range on 6 October 1976. That experiment was designed to measure the effects of high-density, explosively produced dust clouds on a series of coherent signals ranging in frequency from 400 MHz to 10 GHz. Both amplitude and phase data were obtained. This report contains: (1) A description of the experiment; (2) The reduced rf data; (3) An interpretation of the results; (4) A discussion of theoretical effects of dust and crater debris on rf signal propagation; and (5) Results from photographic coverage of the event, including comparisons with hydrodynamic-code flow-field predictions and with nuclear and other non-nuclear tests. The observed rf results were found to be consistent with the behavior expected from theoretical considerations and dust densities obtained from a simple model based on material missing from the water and measured cloud volume. Because of the relatively small volume of space affected, rf effects were generally mild, unless a threshold combination of the dust density and the particle size distribution parameter were exceeded. Once the threshold was crossed, extinction coefficients rose to as much as several tens of decibels per kilometer. This was accompanied by the complete loss of a coherent signal component, strong fading, and the apparent onset of multiple scattering.
- Research Organization:
- SRI International, Menlo Park, CA (USA)
- OSTI ID:
- 6687525
- Report Number(s):
- AD-A-085760
- Country of Publication:
- United States
- Language:
- English
Similar Records
Predictions of effects produced by the DICE THROW detonation on experimental microwave links. Topical report 1 January--30 September 1976
DICE THROW: off-site blast predictions and measurements. Final report on Experiment No. 122. [Project Dice Throw simulation of effects of nuclear explosions]
Middle North series Pre-DICE THROW I, II and DICE THROW test execution report. Project officer's report January 1975--June 1977
Technical Report
·
Wed Sep 01 00:00:00 EDT 1976
·
OSTI ID:7091293
DICE THROW: off-site blast predictions and measurements. Final report on Experiment No. 122. [Project Dice Throw simulation of effects of nuclear explosions]
Conference
·
Fri Dec 31 23:00:00 EST 1976
·
OSTI ID:7254725
Middle North series Pre-DICE THROW I, II and DICE THROW test execution report. Project officer's report January 1975--June 1977
Technical Report
·
Fri Mar 31 23:00:00 EST 1978
·
OSTI ID:6741048
Related Subjects
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450200* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosions & Explosives
AMMONIUM COMPOUNDS
AMMONIUM NITRATES
BLAST EFFECTS
CHEMICAL EXPLOSIVES
DUSTS
ELECTROMAGNETIC RADIATION
EXPLOSIONS
EXPLOSIVES
FREQUENCY DEPENDENCE
FUEL OILS
FUELS
LIQUID FUELS
NITRATES
NITROGEN COMPOUNDS
NUCLEAR EXPLOSIONS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
RADIATIONS
SCATTERING
SIMULATION
WAVE PROPAGATION
450200* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosions & Explosives
AMMONIUM COMPOUNDS
AMMONIUM NITRATES
BLAST EFFECTS
CHEMICAL EXPLOSIVES
DUSTS
ELECTROMAGNETIC RADIATION
EXPLOSIONS
EXPLOSIVES
FREQUENCY DEPENDENCE
FUEL OILS
FUELS
LIQUID FUELS
NITRATES
NITROGEN COMPOUNDS
NUCLEAR EXPLOSIONS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
RADIATIONS
SCATTERING
SIMULATION
WAVE PROPAGATION