FIZIKA B 11 (2002)  1, 19-26

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USE OF MONTE CARLO METHOD WITH SIMULATED ANNEALING ALGORITHM IN THE ANALYSIS OF MÖSSBAUER SPECTRA

ABDELIILAH MUSA ALI, YUANFU HSIA, HAIRONG SHI, HONGBO HUANG, XUEFENG SUN and JUN LIN

Department of Physics, Nanjing University, Nanjing, China

Received 29 March 2001
Accepted 24 September 2001         Online 25 May 2002

A convenient and robust procedure for Mössbauer analysis based on Monte Carlo method is described. The method uses simulated annealing approach to find the optimum Mössbauer parameters in the Lorentzian profile as initial values for the Monte Carlo search program. A succession of solutions to the function describing the spectrum is then randomly generated until the solution with the minimum chi-square with respect to the experimental data is reached. The result having the reduced chi-square close to 1 shows the validity of the method.

PACS numbers: 05.10.Ln, 33.45.+x
UDC 539.166

Keywords: Monte Carlo method, simulated annealing, global optimization, Mössbauer spectra

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