[4] Wildenschild D, Vaz C M P, Rivers M L, et al. Journal of Hydrology, 2002, 267: 285.

[5] Wu Changning, Cheng Yi, et al. Chemical Engineering Science, 2007, 62: 4325.

[6] Bjorn Tore Hjertaker, Stein-Arid Tjugum, et al. IEEE Sensors Journal, 2005, 5(2), 153.

[8] Miyai H, Kawasaki S, Kitaguchi H, et al. IEEE Transactions on Nuclear Science, 1994, 41(4): 999.

[9] Rossi M, Baldzzi G, Querzola E, et al. Nuclear Instruments and Methods in Physics Research, 1996, A380: 419.

[10] Stéphane Ricq, Francis Glassera*, Michel Garcin. Nuclear Instruments and Methods in Physics Research, 2001 A458: 534.

[11] Johansen G A, Abro E. Sensors and Actuators, 1996, A54: 493.