METHOD AND APPARATUS FOR MODIFYING THE PROBALITY OF ISOMERIC NUCLEID DESEXCITATION

摘要

A process and apparatus for modifying the probability of de-excitation of isomeric nuclides. The invention relates to a method for exciting atomic nuclei which have a metastable state of half-life ranging from one second or less to 50 years. or more. The excitation is produced by a radioactive isotope that emits cascading gamma or by the collision of particles accelerated by an accelerator with a target. In this case, the gamma is produced in cascade by a Bremstrahlung effect. The apparatus consists of a radioactive source and a device for irradiating samples in sequence for a given time as a function of the probability modification to be obtained. The process and apparatus are particularly intended for chemical and medical engineering applications. / P