PMID- 18161414 OWN - NLM STAT- MEDLINE DCOM- 20080205 LR - 20191110 IS - 0832-7823 (Print) IS - 0832-7823 (Linking) VI - 41 IP - 1 DP - 2007 TI - Carbon loaded Teflon (CLT): a power density meter for biological experiments using millimeter waves. PG - 27-34 AB - The standard technique for measurement of millimeter wave fields utilizes an open-ended waveguide attached to a HP power meter. The alignment of the waveguide with the propagation (K) vector is critical to making accurate measurements. Using this technique, it is difficult and time consuming to make a detailed map of average incident power density over areas of biological interest and the spatial resolution of this instrument does not allow accurate measurements in non-uniform fields. For biological experiments, it is important to know the center field average incident power density and the distribution over the exposed area. Two 4 ft x 4 ft x 1/32 inch sheets of carbon loaded Teflon (CLT) (one 15% carbon and one 25% carbon) were procured and a series of tests to determine the usefulness of CLT in defining fields in the millimeter wavelength range was initiated. Since the CLT was to be used both in the laboratory, where the environment was well controlled, and in the field, where the environment could not be controlled, tests were made to determine effects of change in environmental conditions on ability to use CLT as a millimeter wave dosimeter. The empirical results of this study indicate CLT to be an effective dosimeter for biological experiments both in the laboratory and in the field. FAU - Allen, Stewart J AU - Allen SJ AD - General Dynamics Advanced Information Systems, Brooks City-Base, Texas 78235, USA. stujallen@peoplepc.com FAU - Ross, James A AU - Ross JA LA - eng PT - Journal Article PL - United States TA - J Microw Power Electromagn Energy JT - The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute JID - 8706313 RN - 7440-44-0 (Carbon) RN - 9002-84-0 (Polytetrafluoroethylene) SB - IM MH - Carbon/*chemistry MH - *Electromagnetic Fields MH - *Microwaves MH - Polytetrafluoroethylene/*chemistry EDAT- 2007/12/29 09:00 MHDA- 2008/02/06 09:00 CRDT- 2007/12/29 09:00 PHST- 2007/12/29 09:00 [pubmed] PHST- 2008/02/06 09:00 [medline] PHST- 2007/12/29 09:00 [entrez] AID - 10.1080/08327823.2006.11688552 [doi] PST - ppublish SO - J Microw Power Electromagn Energy. 2007;41(1):27-34. doi: 10.1080/08327823.2006.11688552.