Iodine Dissociation in a Shock Tube.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
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A two-in. 5.08 cm I.D. circular shock tube was assembled to study the dissociation of iodine. This study was an initial investigation into the possible use of shock waves to dissociate iodine in an electronically excited state. Iodine has an emission transition in this state at a wavelength of 1,315 micron which is used in the iodine laser. Using argon as the diluent gas, tests were observed with an indium-antimonide detector to determine if emissions in the 1.1 to 5.5 micron range of the detector were present. Tests with and without iodine were conducted at a Mach number of approximately 2.5 with reflected shock wave temperature of about 1570 K. comparison of these tests indicates that a significant infrared emission from iodine was present in the detector range. The presence of the 1.315 micron transition cannot yet be confirmed in that three iodine transitions exist in the given range, other emissions from unknown sources could be present, and the detector bandwidth could not be suitably narrowed. Further research is required to specifically identify the spectrum of IR present. Author
- Lasers and Masers
- Test Facilities, Equipment and Methods
- Infrared Detection and Detectors
- Atomic and Molecular Physics and Spectroscopy