Accession Number : AD0816545

Title :   CHEMISTRY OF SPECIES IN A HIGH INTENSITY ELECTRODELESS DISCHARGE.

Descriptive Note : Technical rept. 1 Apr 66-31 Mar 67 on Phase 1,

Corporate Author : CATHOLIC UNIV OF AMERICA WASHINGTON DC DEPT OF CHEMISTRY

Personal Author(s) : Powell, Francis X.

Report Date : APR 1967

Pagination or Media Count : 31

Abstract : Phase I of the study of the (Chemistry of Species in High Intensity Electrodeless Discharge) consists of the construction of the apparatus necessary for experimentation. The problem of building a glass reaction vessel of large dimensions that would maintain a vacuum in the region of .0001 torr is solved by the use of Pyrex drainline pipe joined together with Teflon gaskets and backed by Buna-N O rings. This system has the advantages of flexibility, ease of cleaning and reasonable cost over a completely glass blown system. The high vacuum part of the system is also constructed of the sewer pipe and contains the Varian Qrga as the system detector for the free radicals generated in the discharge. The gas handling system allows the capability of injecting the gas to be discharged into the system at a controlled rate, and the discharge region is made variable so as to aid in the determining of the lifetime of the radicals studied. Scavenger gases can be injected into the reaction chamber at different distances from the detection chamber, and species that are too reactive to be directly determined can be seen from their combination products. (Author)

Descriptors :   *TEST EQUIPMENT), (*GAS DISCHARGES, VACUUM, REACTION KINETICS, SPECTROMETERS, FREE RADICALS, RADIOFREQUENCY, HYDROGEN, OXYGEN, ARGON, ULTRAVIOLET RADIATION, PHOTOCHEMICAL REACTIONS, INTENSITY, STABILITY, METHANE, SAMPLERS, DETECTION, TEST METHODS, CRYOGENICS, RECOMBINATION REACTIONS.

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE