Accession Number : ADD007068

Title :   Radioiodine Detector Based on Laser Induced Fluorescence.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : McDonald,Jimmie R ; Baronavski,Andrew P

Report Date : 12 Feb 1980

Pagination or Media Count : 9

Abstract : The invention involves the measurement of the concentration of the radioisotope 129I2 in the presence of a gas. The invention uses a laser to excite a sample of the 129I2 in a sample gas chamber and a reference sample of a known concentration of 129I2 in a reference gas chamber. The 129I2 in the sample and reference gas chamber each gives off fluorescence emissions which are received by photomultipliers which provide signals to a detector. The detector uses a ratioing technique to determine the concentration of 129I2 in the sample gas chamber. (Author)

Descriptors :   *Patents, *Radiation measuring instruments, *Detectors, *Photomultiplier tubes, *Iodine, *Radioactive isotopes, Concentration(Chemistry), Lasers, Excitation, Fluorescence, Emission spectra, Ratios

Subject Categories : Nuclear Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE