NOVELTY - The system has a reactor chamber provided with a material input opening. A set of electrodes (224) partially protrudes into the reactor chamber, and generates an arc within the reactor chamber when electricity is applied to the electrodes. A material feed system within the reactor chamber moves material from the material input opening toward die electrodes at controlled rate. A gas removal system within the reactor chamber extracts gas generated from breakdown of the material. A control system manages speed of rotation of a material feed screw of the material feed system.    USE - System for processing material e.g. carbonaceous material such as municipal solid waste (MSW) and municipal solid sludge (MSS), to generate syngas within a reactor chamber for commercial purposes. Can also be used for processing constiliclion waste such as wood, plywood, chip board and shingles, agricultural waste such as wood chips, plant matter and mulch, rubber tires, medical waste, coal, oil, waxes, tars, liquids such as water containing carbonaceous material and/or gases such as carbon dioxide, recyclable materials such as metals, glass and useable plastics and hazardous materials such as radioactive materials, baueries, and fluorescent light bulbs.    ADVANTAGE - The system enables generation of the syngas from input material such as municipal solid waste (MSW) and municipal solid sludge (MSS) in an efficient manner. The system has compressed material to form an effective seal against low internal pressure within free radical gasification (FRG) reactor and to prevent the syngas and other gaseous components from exiting the reactor via a material injection system. The system allows UV light to increase production of free radicals within a FRG zone, thus increasing energy efficiency of the system.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for generating gas within a reactor chamber.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional side view of a FRG reactor.    Material injection system (112)    Base section (206)    Bottom section (208)    Material feed screw (220)    Electrodes (224)