Measurement of Intense Beams of Thermal Radiation*

Broido, A.; Willoughby, A. B.

doi:10.1364/josa.48.000344

Cited by 7 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The special requirements placed on these instruments, besides ruggedness to withstand the field conditions, were 20 ms or better time resolution over a range of radiant exposures to 4185 kJ/m 2 (100 cal/cm 2 ) with peak irradiances to 8370 kW/m 2 (200 cal/(cm 2 s)). Certain criteria of electrical signal strength and impedance were also dictated by the portable oscillographic recorders that were available without amplification at that time [1]. From 1950 to well into the 60s, this research group actively developed thermal radiation sources with primary and secondary standards for instrumental calibration of both laboratory and field calorimeters [2].…”

Section: Historical Backgroundmentioning

confidence: 99%

Fire Setting by Nuclear Explosion: A Revisit and Use in Nonnuclear Applications

Martin

2004

Journal of Fire Protection Engineering

View full text Add to dashboard Cite

Ignition of cellulosic and similar materials by the thermal radiation from the nuclear fireball largely determines the extent of fires resulting from a nuclear explosion in urban, rural, and wildland areas. Since the 1950s and 60s, it has been known and is well demonstrated that the ignition thresholds in materials exposed to the well-characterized thermal pulse of nuclear airbursts are controlled by thermal absorption and heat conduction. Remarkably, a full range of the ignitable materials subject to such exposure has ignition thresholds that can be forecast this way.This revisit of the pertinent technology from the last half of the twentieth century documents its findings in the open literature, some of it for the first time, while showing how it can be applied not only to computer modeling of nuclear fires but also to other nonnuclear pulsed heat releases for the twenty-first century. Beyond its originally intended purpose of forecasting the fire consequences of a nuclear war, the data correlation presented here can be used to examine a variety of threats associated with intense radiant pulses such as those in natural gas pipeline ruptures and in the class of flammable liquid storage accidents known as boiling-liquid expanding-vapor explosions (BLEVEs).KEY WORDS: pulsed radiant ignition of materials, nuclear fires, nondimensional correlation of ignition thresholds, computer codes for fire forecasts (GIS format).

show abstract

Section: Historical Backgroundmentioning

confidence: 99%