August Historical Event in Mössbauer Spectroscopy Leopold May August 3, 1959 The first paper on the Mössbauer Effect of 182W (L. L. Lee, L. Meyer-Schutzmeister, J. P. Schiffer, D. Vincent, Phys. Rev.Lett. 1959, 3, 223 [59L01]) was received on this date. Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://www.mossbauer.org/history.html>>, and http://faculty.cua.edu/may/MossHist.htm«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://faculty.cua.edu/may/MossHist.htm>> Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC, 20064 Tel: 202-319-5392 FAX: 202-319-5381 E-mail: may AT cua.edu Website: http://faculty.cua.edu/may/

July Historical Event in Mössbauer Spectroscopy Leopold May July 28, 1964 On this date, the first paper on the Mössbauer Effect of 181Ta (S. G. Cohen, A. Marinov, J. I. Budnick, Phys. Lett. 1964, 12, 38 [64C05]) was received. Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html, and http://faculty.cua.edu/may/MossHist.pdf. Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC 20064 Tel: 202-319-5392; FAX: 202-319-5381 E-mail: may AT cua.edu<mailto:may AT cua.edu> Website: http://faculty.cua.edu/may

June Historical Event in Mössbauer Spectroscopy Leopold May June 14, 1965 The first report on the Mössbauer Effect of 186W (Y. W. Chow, L. Grodzins, H Barrett, Phys. Rev. Lett. 1965, 15, 369 [65C06]) was received on this date. Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://www.mossbauer.org/history.html>>, and http://faculty.cua.edu/may/MossHist.htm«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://faculty.cua.edu/may/MossHist.htm>> Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC 20064 Tel: 202-319-5392; FAX: 202-319-5381 E-mail: may AT cua.edu<mailto:may AT cua.edu> Website: http://faculty.cua.edu/may

May Historical Event in Mössbauer Spectroscopy Leopold May May 30, 1963 On this date, the first paper on the Mössbauer Effect of 29Xe (C. L. Chernick, C. E. Johnson, J.- G. Malm, G. J. Perlow, M. R. Perlow, Phy,,s. Lett. 1963, 5, 103 [63C02]) was received. Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html, and http://faculty.cua.edu/may/MossHist.htm Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC, 20064 Tel: 202-319-5392 FAX: 202-319-5381 E-mail: may AT cua.edu Website: http://faculty.cua.edu/may/

April Historical Event in Mössbauer Spectroscopy Leopold May April 26, 1962 A presentation on the Mössbauer Effect of 155Gd was made on this date and published as an abstract as C. L. Herzenberg, L. Meyer-Schutzmeister, L. L. Lee, Jr., S. S. Hanna, Bull. Am. Phys. Soc. 1962, 7, 391[62H07A]. Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://www.mossbauer.org/history.html>>, and http://faculty.cua.edu/may/MossHist.htm«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://faculty.cua.edu/may/MossHist.htm>> Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC, 20064 Tel: 202-319-5392 FAX: 202-319-5381 E-mail: may AT cua.edu Website: http://faculty.cua.edu/may/

March Historical Event in Mössbauer Spectroscopy Leopold May March 8, 1965 The first paper on the Mössbauer Effect of 121Sb was received on this date (R. E. Snyder, G. B. Beard, Phys. Lett. 1965, 15, 244 [65S04]). Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://www.mossbauer.org/history.html>>, and http://faculty.cua.edu/may/MossHist.htm«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://faculty.cua.edu/may/MossHist.htm>>. Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC, 20064 Tel: 202-319-5392 FAX: 202-319-5381 E-mail: may AT cua.edu Website: http://faculty.cua.edu/may/

Dear colleagues, it is my pleasure to inform you that we just decided to accept first official user experiment for nuclear resonant scattering at the beamline P01 of PETRA III starting from November 2011. Applications for the first round must be sent up to 1st of March 2011. Informations how to apply for beamtime can be found here: http://hasylab.desy.de/user_info/e4618/index_eng.html We are looking forward to your applications and many exciting experiments at P01. Sorry for the rather short notice, sometimes decisions are taken rather quickly, which in this case is a very good thing, I believe. So see you soon!

I wish to share with my fellow Mossbauer spectrocopists who are interested in observing the resonance in 119m Sn spectra information relating to the acute shortage of suitable sources for such experiments. As many of you are aware, at present time the only supplier of such sources is Cyclotron Instruments , Sattlerweg 11c, 55128 Mainz, Germany. This supplier collaborates with the “V.G.Khlopin Radium Institute” of St. Petersburg, 194021, Russia, who certify the quality of the sources ordered.

February Historical Event in Mössbauer Spectroscopy Leopold May February 10, 1971 Ranger Scientific. Inc., (Manufacturer of Mössbauer equipment) was founded in Alva, OK, on this date. Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://www.mossbauer.org/history.html>>, and http://faculty.cua.edu/may/MossHist.htm«https://mail.cua.edu/exchweb/bin/redir.asp?URL=http://faculty.cua.edu/may/MossHist.htm>>. Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC, 20064 Tel: 202-319-5392 FAX: 202-319-5381 E-mail: may AT cua.edu Website: http://faculty.cua.edu/may/

January Historical Event in Mössbauer Spectroscopy Leopold May January 26, 1965 First Symposium of the Mössbauer Effect Methodology was held in New York City on this date. It continued annually until 1976. The proceedings were published as Mössbauer Effect Methodology, I. J. Gruverman, C. W. Seidel, eds. (Plenum Press. New York, vol. 1-10, 1965-1976). Other events may be found at The Mössbauer History Timeline at http://www.mossbauer.org/history.html, and http://faculty.cua.edu/may/MossHist.htm. Dr. Leopold May, FSAS Professor Emeritus of Chemistry The Catholic University of America 620 Michigan Ave., NE Washington, DC 20064 Tel: 202-319-5392; FAX: 202-319-5381 E-mail: may AT cua.edu Website: http://faculty.cua.edu/may