Prof. Reuven Chen

חוג לפיזיקה ואסטרונומיה אמריטוס
Prof. Reuven Chen
Phone: 03-6408426
External phone: 09-9553276
Fax: 09-9561213
Office: Shenkar Physics, 206

Research

Has been working on different aspects of luminescence in solids. In particular have been studied thermoluminesnce (TL), optically stimulated luminescence (OSL) and radioluminescence (RL). Different aspects have been studied theoretically to explain various effects previously reported in different materials, in particular materials involved in the applications in dosimetry and in geological and archaeological dating such as quartz, feldspars, LiF and Al2O3. The methods used included numerical simulations consisting of the numerical solution of the relevant simultaneous differential equations as well as analytical approximate solutions and Monte Carlo simulations.

 

Research achievements include: explanation of the non-linear dose dependence of TL and OSL including strong superlinear and sublinear dependencies; dependence of these phenomena on the dose-rate effect; models of concentration quenching and thermal quenching of TL; linear-modulated-OSL (LM-OSL); thermally assisted OSL (TA-OSL); stability of the TL and OSL signals; normal and anomalous heating-rate effects of TL; a model of thermally-transferred OSL (TT-OSL).

 

Future work planned: Effects associated with two-electron traps and of two-hole centers; competition between excitation and fading of TL and OSL using Monte Carlo simulation; signals from a random distribution of defects.

Education

  • M.Sc in Physics, Mathematics and Applied Mathematics, The Hebrew University, Jerusalem, 1963

  • Ph. D. in Physics, The Hebrew University, Jerusalem, 1968.

Academic Appointments

  • Researcher, Soreq Laboratories, 1963-1966.

  • Instructor, Tel-Aviv University, 1966-1967.

  • Assistant Professor, Brooklyn Polytechnic, 1967-1969.

  • Lecturer, Tel-Aviv University, 1969-1971.

  • Senior Lecturer, Tel-Aviv University, 1971-1985.

  • Associate Professor, Tel-Aviv University, 1985-1997.

  • Dean of Students, Tel-Aviv University, 1992-1997.

  • Full Professor, Tel-Aviv University, 1997-2008.

  • Professor Emeritus, Tel-Aviv University, 2008-present.

  • Director, Tel-Aviv University preparatory program, 2012-2015.

  • Visiting Scientist (summer), University of London, 1971.

  • Visiting Scientist (sabbatical), Queens' University, Ontario, Canada, 1973-1974.

  • Visiting Scientist (summer), Oxford University, 1976, 1977.

  • Visiting Scientist (sabbatical), Birmingham University, 1979-1980.

  • Visiting Scientist (summer), Simon Fraser University, BC, Canada, 1981.

  • Visiting Scientist (summer), US Navy Labs, White Oak, Maryland, 1983.

  • Visiting Professor (summer), University of Maryland, 1983, 1987-1992.

  • Visiting Professor (summer), University of New South Wales, Sydney, Australia, 2001, 2004.

  • Visiting Professor, City University pf Hong Kong, 8 months in 1997-2000.

  • Visiting Professor (summer), McDaniel College, Maryland, 10 times in 2003-2014. 

Tel Aviv University, P.O. Box 39040, Tel Aviv 6997801, Israel
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