Charles E Crandall

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The feasibility of using a commercial magnetic resonance imaging (MRI) scanner to do either imaging or hyperthermic treatment was demonstrated. Radiofrequency (RF) induced focal heating of phantoms and animal tissues was performed using a MRI scanner as the RF power source and a grounded interstitial probe as a device to produce hyperthermia via eddy(More)
Spectrally tunable liquid crystal filters provide numerous advantages and several challenges in space applications. We discuss the tradeoffs in design elements for tunable liquid crystal birefringent filters with special consideration required for space exploration applications. In this paper we present a summary of our development of tunable filters for(More)
A camera capable of obtaining single snap-shot, quantitative, polarimetric measurements is investigated to determine performance characteristics. The camera employs a micropolarizer array with linear polarizers oriented at 0, 45, 90, and, 135 degrees. Micropolarizer arrays with elements as small as 7.4 microns and arrays as large 4 million pixels have been(More)
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