In this paper, the effect of β radiation on nonlinear refraction and nonlinear absorption coefficients of AlCl3(H2O)6 solved in ethanolamin was investigated qualitatively by Z-scan technique. For this purpose, we used the line of 532 nm of continuous wave Nd:YAG diode pump laser. The Z-scan curves of nonlinear absorption and refraction coefficients of this solution was measured after and before of β radiation. Our results show a significant decrease in the nonlinear absorption due to β radiation and consequence of ionization effect. However, the nonlinear refraction coefficient remains almost unchanged.

Keywords: β radiation, AlCl3(H2O)6, Z-scan, nonlinear refraction index, nonlinear absorption coefficient.

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