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Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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Commercial nuclear innovation "new space" age
In early 2006, a start-up company launched a small rocket from a tiny island in the Pacific. It exploded, showering the island with debris. A year later, a second launch attempt sent a rocket to space but failed to make orbit, burning up in the atmosphere. Another year brought a third attempt—and a third failure. The following month, in September 2008, the company used the last of its funds to launch a fourth rocket. It reached orbit, making history as the first privately funded liquid-fueled rocket to do so.
Keiji Miyazaki, Shoji Inoue, Nobuo Yamaoka, Tomomitsu Horiba, Kazushige Yokomizo
Fusion Science and Technology | Volume 10 | Number 3 | November 1986 | Pages 830-836
Liquid-Metal Blankets and Magnetohydrodynamic Effects | Proceedings of the Seveth Topical Meeting on the Technology of Fusion Energy (Reno, Nevada, June 15–19, 1986) | doi.org/10.13182/FST10-830
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The MHD pressure drop was measured by providing a lithium circulation loop of 40 lit/min and 0.3MPa head with a square test section of 2a=15.7mm × 2b=15.7mm or a rectangular one of 2a=26.8mm × 2b=ll.lmm inner cross-section made of tw=2.1mm thick 304-SS walls. The experiment covered ranges of B=0.2–1.5T (Ha=200–2100), U=0.2–4.0m/sec (Re=500–38000), and TLi=309–380°C. Theoretical prediction was made on an assumption of a uniform electric current density, neglecting the friction with walls. The MHD pressure gradient -dP/dz is given by -dP/dz = KpσfUB2 where Kp= C/(l+a/3b+C) and C=σwtw/σfa. The theory agreed well with the experimental data for both the square and rectangular test sections. Under the ununiform magnetic field of the exit, the pressure drop data agreed with an approximated prediction of Δ P= ∫KpσfUB2(z)dz.