Copyright 2002 Newport Instruments. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, or duplication of any material in this document for a fee or for commercial purposes are prohibited. For all other uses, please contact Robert C. Leif, Ph.D. at rleif@rleif.com The DICOM Number of Waveform Channels Type includes one element, Number, and two constant attributes, Tag and VR. The use of an attributes with a fixed value eliminates the need to enter a value into the Web page; yet, permits the value to be accessed by the application. There is no FCS keyword for this type. It is the 'n' in many FCS keywords. (50xx,2006) Number of Samples UL 1. FCS Keyword is $TOT, which "specifies the total number of events in the data set."