Millimeter Wave Induced BioEffects

Abstract

Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Department of Defense, Washington Headquarters Services, Directorate for Information SUPPLEMENTARY NOTES ABSTRACTA baseline study determined the conditions of hemodynamic collapse in rats anesthetized with either ketamine plus xylazine or isoflurane alone and exposed to environmental heat at 42 or 43°C, 35 GHz at 75 or 90 mW/cm 2 , or 94 GHz at 75 or 90 mW/cm 2 . Focusing on continuous 94 GHz exposures at power densities of 50, 75, or 100 mW/cm 2 , at 23 or 33°C ambient, for 15, 30, 45, and 60 minutes administered to the left abdominal flank of male rats, the temperature response at the skin surface, subcutaneous, and core were coordinated with exposed skin histology. Four anatomical injury threshold responses were defined: panniculus carnosus muscle change @ 42.1"C, dermis blood vessel dilation @ 42.9'C, extravasation @ 42.9°C, and epidermal blistering @ 44. IPC. Progressive skin injury was apparent at 100 mW/cm 2 but not 50 mW/cm 2 with 75 mW/cm 2 intermediate. A 10C ambient elevation during exposure dramatically increased skin injury. Anesthesia depressed rat body temperature response and masked exposure response by about 2"C. The Gaussian nature of MMW delivery was explored through a coordinated thermograph/histology investigation. Steps were taken to model heat flow through the skin. Thermoregulation of hyperthermic skin was explored.

Photodegradation of the Volatile Organic Compounds in the Gas Phase: A Review

“…Heickelen and co-workers have found that chain induced photooxidation occurs for all of the chlorinated ethenes except vinyl chloride [56]. In the liquid phase PCO of chloroform, the rate of oxidation is first order with respect to chloroform concentration, however, in the gas phase at high concentration, the rate is second order with respect to chloroform concentration due to the C1-sensitized reaction [13].…”

“…About 60 installations world wide are using this technology treating diverse effluents from various industries such as petrochemical, pulp and paper, pharmaceutical, cosmetics including waste water and waste treatment facilities [77]. Blystone et al (1993) [56] observed the effective removal and decomposition of several VOCs (TCE, PCE, 1, 1 -dichloroethene, chloroform, and methyl chloride) by a xenon flash lamp. Solarchem high power density lamp was used to treat toluene and TCE in air streams [62].…”