New source of x-ray web-thickness sensors.A new x-ray backseatter sensor, Model 318 from NDC NDC National Drug Code NDC NATO Defense College NDC National Documentation Centre (National Hellenic Research Foundation, Athens, Greece) NDC National Dairy Council NDC National Democratic Congress Infrared Engineering Inc., Irwindale, Calif., reportedly measures film and sheet thickness from one side of the web with the same performance as NDC's two-sided nuclear beta transmission gauge. Since the gauge is single-sided, the scanning frame is simpler, less expensive, and easier to fit on the processing line. The x-ray backscatter backscatter in radiology, radiation deflected by scattering processes at angles greater than 90 degrees to the original direction of the beam of radiation. Important in radiotherapy when estimating surface exposure dose. sensor, which will be shown for the first time at NPE NPE NullPointerException (Java) NPE Network Processing Engine NPE National Policy on Education NPE National Plastics Exposition NPE Natural Penis Enlargement NPE Nutrition Program for the Elderly in Chicago next month, uses an ionization ionization: see ion. ionization Process by which electrically neutral atoms or molecules are converted to electrically charged atoms or molecules (ions) by the removal or addition of negatively charged electrons. chamber to detect reflected x-rays. It avoids the licensing requirements that can accompany nucleonic devices. NDC is only the second company to offer a single-sided x-ray thickness sensor. At NPE 2003, Automation & Control Technology (ACT) Inc., Dublin, Ohio, introduced a device with a patented solid-state detector, rather than an ionization chamber, adjacent to the x-ray transmitter. NDC: (626) 960-3300 * PTDirect: 861MV [ILLUSTRATION OMITTED] |
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