Variable-frequency microwave

Although the initial measurements of ODMR 86-88) were made in the conventional manner, (fixed microwave frequency source and variable externally-applied Zeeman field) nearly all measurements on the aromatic amino acid triplet states have been made at zero applied field using a variable frequency microwave source. Consequently, we will focus on the zero-field experimental method in this section. 

Concerning microwave technologies, different systems are available on the market with different chanacteristics and purposes closed oven technologies, like fixed frequency and variable frequency microwaves (VFM), multimode and single-mode systems, as well as open microwave machines like moving antenna systems for large components. 

Ku H S, Siu F, Siores E and Ball JAR (2003) Variable frequency microwave (VFM) processing facilities and application in processing thermoplastic matrix composites, J Mater Process Technol 139 291-295. 

Antonio G and Deam R T (2005) Gomparison of linear and nondinear sweep rate regimes in variable frequency microwave technique for uniform heating in matericds processing, J Mater Process Technol 169 234 241. 

Bows J R (1999) Variable frequency microwave heating of food, J Microw Power Electromagn Energ 34 227-238. 

Amicon E1330LV/ Emerson Cuming Unfilled, no-flow fluxing underfill (reworkable) Not applicable Nickel-gold and OSP finishes Syringe, jet di spense, or stencil print Flip-chip, CSP, BGA modest post-reflow cure (offline) required. Reworkable, 300 second reflow cycles 225°C peak. Variable frequency microwave curable. 

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