[4] Hanafi M, Omar M M, Gamal Y E E. Radiation Physics and Chemistry, 2000, 57(1): 11.
[5] Eseller E K, Yueh F, Singh P. J. Applied Physics B, 2011, 102(4): 963.
[6] Tripathi M M, Srinivasan K K, Krishnan S R, et al. Fuel, 2013, 106(2): 318.
[7] Kiefer J, Li Z, Alden M. Measurement Science and Technology, 2013, 24(7): 75205.
[8] Mansour M, Imam H, Elsayed K A, et al. Optics & Laser Technology, 2015, 65(56): 43.
[9] Dikshit V, Yueh F Y, Singh J P, et al. Spectrochimica Acta Part B: Atomic Spectroscopy, 2012, 68: 65.
[10] Dong M, Lu J, Yao S, et al. Optics Express, 2011, 19(18): 17021.
[11] Lee S H, Yoh J J. Applied Spectroscopy, 2012, 66(1): 107.
[12] Yao S, Lu J, Zheng J, et al. Journal of Analytical Atomic Spectrometry, 2012, 27(3): 473.