00000nam 2200000zi 4500 9.941855 CaOODSP 20241017155152 m o d f cr bn||||||||| 240814e197108##oncado ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- DR52-17/4-1971E-PDF Pattman, J. D. R., author. Operation Dial Pack 1970 - Canadian project A7 thermal radiation measurements / by J.D.R. Pattman. Ottawa : Defence Research Establishment Ottawa, August 1971. 1 online resource (i, 11, [17] pages) : illustrations, graphs, photographs. text txt rdacontent computer c rdamedia online resource cr rdacarrier DREO report ; 642 Digitized edition from print [produced by Defence Research and Development Canada]. "Project No. DRB 16-01-39." Includes bibliographical references (page 10). "Thermal radiation from the Dial Pack 500-ton TNT explosion was recorded in selected wavelength bands, using a high-speed bolometer system, photo-electric detectors, and calorimeters. The radiation was received in both broad and narrow spectral bands, defined by placing suitable combinations of glass filters and silica windows in front of the detectors. Results were obtained from all instruments used, and are presented in this report. These include measurements of the total thermal energy radiated, the thermal pulse shape as shown by records of irradiance versus time, and the variation of spectral distribution as a function of time. Estimation of the apparent temperature of the fireball surface is also discussed. Some comparisons are made with results from previous large TNT explosions. Includes abstracts in English and French. TNT (Chemical) Canada Experiments. TNT (Chemical) Reactivity. Heat Radiation and absorption. Trinitrotoluène Canada Expériences. Trinitrotoluène Réactivité. Chaleur Rayonnement et absorption. Defence Research Establishment Ottawa, issuing body. Canada. Defence Research Board, issuing body. DREO report ; no. DREO 642. (CaOODSP)9.941661 PDF 1.45 MB https://publications.gc.ca/collections/collection_2024/rddc-drdc/DR52-17-4-1971-eng.pdf 71-281