Government of the United States of America, as Represented by the Secretary of Commerce

Atom Sciences, Inc.

James J Snyder

Thomas B Lucatorto

Philip H Debenham

Isotope analysis device comprising a racetrack-shaped ion storage ring, a resonant charge exchange device and a laser photoionization device. Isotope ions to be analyzed are continuously injected into the racetrack in a first orbit and pass through the resonant charge exchange device where they are neutralized and decelerated to produce decelerated isotope particles. Selected isotope particles are then re-ionized by the laser photoionization device, and the resulting selected isotope ions travel around the racetrack in a smaller orbit, while the undesired non-ionized particles exit the storage ring and are separately collected. After several succesively decreasing ion orbits, each isotope of the desired species reaches a detector where it is measured. The device is particularly useful for isotope analysis of strontium and of krypton.

Isotope analysis device and method

An apparatus and method for determining the wavelength of light such as mchromatic radiation from a laser source. The apparatus comprises a Fizeau-type interferometer, photoelectric means for receiving the interference fringe pattern produced in the interferometer, means for determining the spatial period and phase of the fringe pattern, and means for calculating from the spatial period and phase the wavelength of the radiation.

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Clarksburg, MD, United States of America

James J Snyder