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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 1,603 records · Page 89

Lighting system with induction power supply

A system for producing light is provided. The system comprises a sealed enclosure surrounding a porous graphite foam conductor which is exposed to an electromagnetic field generated by an oscillating circuit. When exposed, the foam conductor conducts induced electric current which heats the same to product light. The amount of light is controllable by changing the output of a drive circuit. The oscillating circuit comprises a first inductor and a first capacitor. The first inductor has a first terminal and a second terminal. The output of the drive circuit is controlled by turning a MOSFET OFF and ON. The MOSFET is turned ON when an integrated signal representative of a difference between a voltage proportional to the first terminal and a voltage proportional to the second terminal is between a first voltage threshold and a second voltage threshold and based on a timing signal.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗

Thermal Microwave Kinetic Inductance Device, RSLN-023-16, Year 1 of 2

Presentation describes decay-energy spectroscopy as a transformative method for nondestructive isotopic assay of trace-level nuclear materials with potential applications in areas including nuclear forensics. This project concentrates on optimizing this technology for low-energy electron spectroscopy. Measurement of the decay by electron capture of holmium-163 (163Ho) was explored because its low energy decay, which allows accurate study of energy-resolution capabilities of decay-energy spectroscopy.

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗