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Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Biomed+Opt+Express 2015 ; 6 (5): 1929-41 Nephropedia Template TP
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High-performance sub-terahertz transmission imaging system for food inspection #MMPMID26137392
Ok G; Park K; Chun HS; Chang HJ; Lee N; Choi SW
Biomed Opt Express 2015[May]; 6 (5): 1929-41 PMID26137392show ga
Unlike X-ray systems, a terahertz imaging system can distinguish low-density materials in a food matrix. For applying this technique to food inspection, imaging resolution and acquisition speed ought to be simultaneously enhanced. Therefore, we have developed the first continuous-wave sub-terahertz transmission imaging system with a polygonal mirror. Using an f-theta lens and a polygonal mirror, beam scanning is performed over a range of 150 mm. For obtaining transmission images, the line-beam is incorporated with sample translation. The imaging system demonstrates that a pattern with 2.83 mm line-width at 210 GHz can be identified with a scanning speed of 80 mm/s.