TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The enlarged volume injection section includes a converging central passage section, and the reduced volume mid-section and the enlarged volume ejection section include a diverging central passage section. The converging central passage section, the reduced volume mid-section, and the diverging central passage section cooperatively provide a radially inwardly curved passage side wall intermediate the material injection end and material ejection end of the first material injection passage. The reactor body passage has a central rector body axis extending from the injection end to the ejection end of the reactor body passage and the central reactor body axis is coaxial with a first material injection passage axis. The enlarged volume injection section, reduced volume mid-section, and enlarged volume ejection section in the first material injection passage cooperatively provide isentropic passage for the stream of cracking material through the first material injection passage. The second material feed port is annular. The reactor body passage has a varying cross-sectional area and where the cross-sectional area of the reactor body passage either maintains constant or increases between the injection end and the ejection end of the reactor body passage. The radially inwardly curved side wall in the first material injection passage is adapted to provide an isentropic passage of the cracking material through the first material injector. The cracking material injector includes a converging/diverging passage and injecting a stream of cracking material through a cracking material injector into a reaction chamber includes passing the cracking material through the converging/diverging passage and accelerating the cracking material to supersonic speed within the cracking material injector. The injecting hydrocarbon material into the reaction chamber adjacent to the cracking material injector and transverse to the stream of cracking material entering the reaction chamber from the cracking material injector includes injecting the hydrocarbon material into the reaction chamber annularly around the pressurized stream of cracking material.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: In the method, the second material feed port is aligned transverse to a first material injection passage axis extending from the material injection end and material ejection end in the first material injection passage in the first, and where the hydrocarbon material is injected through the second material feed port into the reactor body in a direction transverse to the stream of cracking material entering the reactor body from the first material injector; the cracking material is a gas/liquid prior to injection through the first material injector; the cracking material is accelerated to supersonic speed by the first material injection passage of the first material injector; and injecting the hydrocarbon material into the reactor body includes injecting the hydrocarbon material into the reactor body annularly around the stream of cracking material. The cracking hydrocarbon material involves injecting a stream of cracking material through a cracking material injector into a reaction chamber; and injecting hydrocarbon material into the reaction chamber adjacent to the cracking material injector, where the hydrocarbon material is injected into the reaction chamber in a direction transverse to the stream of cracking material entering the reaction chamber from the cracking material injector. Preferred Material: The cracking material further comprises an additional material containing steam. The hydrocarbon material comprises bitumen or bitumen residue. EXAMPLE - No suitable example given.