J Microw Power Electromagn Energy
March 2009
This work examines the role of 672 nm optical illumination on the diffusion and activation of B in Si as a function of various factors. The factors studied include length of anneal, maximum temperature of anneal, type of co-implanted and pre-amorphizing species and ambient oxygen concentration. The anneal conditions fell into one of three categories: (1) high-temperature (> 900 degrees C) spike and 10-second anneals; (2) low temperature (550 degrees C) 30-minute anneals; and (3) room-temperature long-term "anneals".
View Article and Find Full Text PDFJ Microw Power Electromagn Energy
March 2009
Experiments were conducted to compare the annealing of nano-porous aluminum oxide membranes by 2.45 GHz microwave radiation and by conventional (resistive element) furnace heating. The starting material was Al2O3 membranes that were 60 microm thick, 13 mm in diameter, and containing pores of approximately 200 nm diameter.
View Article and Find Full Text PDFThe Moon is generally thought to have formed and evolved through a single or a series of catastrophic heating events, during which most of the highly volatile elements were lost. Hydrogen, being the lightest element, is believed to have been completely lost during this period. Here we make use of considerable advances in secondary ion mass spectrometry to obtain improved limits on the indigenous volatile (CO(2), H(2)O, F, S and Cl) contents of the most primitive basalts in the Moon-the lunar volcanic glasses.
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