Recent Applications Of The M Ssbauer Effect

Recent Applications of the Mössbauer Effect By: Dr. Monica Sorescu Dr. Monica Sorescu has over 30 years of experience in the field of Mössbauer spectroscopy applications which she obtained in Romania, Germany, and the United States. In her laboratory at Duquesne University, she conducted leading research on various classes of materials, such as amorphous metals, mixed oxide nanoparticles, graphene, and spring magnets. Recent Applications of the Mössbauer Effect brings recent applications of the Mössbauer effect to the attention of the general public.

Mössbauer Effect: Principles and Applications focuses on the processes, methodologies, and reactions involved in Mössbauer effect, as well as atomic motion, use of the effect in studying hyperfine structures, quadropole coupling, and isomer shift. The manuscript first discusses resonant absorption, emission of gamma rays by nuclei, width of gamma-ray spectrum, and emission from bound atoms. The text then surveys counting, modulation, and low-temperature techniques. The publication offers information on relativity and the Mössbauer effect, atomic motion, quadropole coupling, and magnetic hyperfine structure. Discussions focus on gravitational red shift and combined magnetic and electric hyperfine coupling. The text then evaluates magnetism of metals and alloys, chemical applications, and linewidth and line shape. The manuscript is a valuable source of data for physicists and readers interested in the Mössbauer effect.

As is often the case, the preface is the last task to be finished during the preparation of a large volume such as you are now holding. The first task, obtaining approval for a symposium on the industrial applications, now seems a long time ago. The idea orginated with John Stevens, probably in 1982, from his observation of papers dealing with industrial applications of the Mossbauer effect appearing in the Mossbauer Effect Reference and Data Journal. His initial suggestion for a symposium entitled "Industrial Applications of the Mossbauer Effect" to be held at a national meeting of the American Chemical Society eventually led to the symposium at the International Chemical Congress of Pacific Basin Societies which met in Honolulu, Hawaii in December 1984. This volume is the result of the symposium at the above mentioned Congress, but is not actually the 'proceedings' of the symposium because this volume does not contain all of the over one hundred Mossbauer effect papers that were pre sented at the symposium. Rather it contains a selection of papers that the or ganizing committee for the symposium deemed most appropriate for a volume devoted to industrial applications of the Mossbauer effect. The final volume also contains six chapters that were not a part of the symposium but which are closely related to the topic. There is another difference from many proceedings.

This is the fifth volume of a series which provides acontinuing forum for publication of developments in Mossbauer effect methodology and of spectroscopy and its applications. Mossbauer Effect Methodology, Volume 5, records the proceedings of the Fifth Symposium on Mossbauer Effect Methodology. The sym posium was sponsored by the New England Nuclear Corporation and was centered on the themes of spectroscopy, new applications, and methodology. The symposium was held in the Mercury Ballroom of the New York Hilton hotel on February 2, 1969. Dr. P. A. Flinn of Carnegie Mellon Institute was chairman of the afternoon and evening sessions. About three hundred participants attended, and this degree of interest leads us to anticipate a sixth symposium early in 1970. Elron Electronic Industries and Reuter-Stokes Electronic Components Company demonstrated lines of equipment for Mossbauer investigators. The evident high quality of the commercial instrumenta tion available is a tribute to the growth of Mossbauer technology and to the manufacturers.

Mossbauer Effect Methodology, Volume 1, records the proceedings of the First Symposium on Mossbauer Effect Methodology. This Symposium was sponsored by the New England Nuclear Corporation and the Technical Measurement Corporation, and was devoted to principles, techniques, and applications of the Mossbauer effect. The Symposium was held at the Sheraton-Atlantic Hotel in New York City on january 26, 1965. Dr. Stanley Ruby, of Argonne National Laboratory, was Chairman of the aU-day session. About 250 people attended the Symposium, and interest appeared sufficient to warrant continuation of this Symposium series. It is hoped that future Symposia can be organized which will serve as a forum for presentation of advances in methodology. The papers presented in this volume review the current status of applications, describe instrument systems used, elu cidate measurement techniques applied, and formulate means of creating required environments for use in Mossbauer effect studies. With the proliferation of applications of the Mos sbauer effect in physics, as well as in chemistry and biology, the need for complete description of transducer systems, detection and data handling methods, and environment modification techniques be came apparent. The body of such experience, developed and possessed by a relatively small group of physicists, primarily, has not been readily accessible to those in other fields. The editor organized this Symposium in response to many expres sions of a need for such information.