Author:
Tanaka H. K. M.,Sannomiya A.
Abstract
Abstract. In order to investigate the complex nature of the landslides triggered by rainfall, dynamic muon radiography of the motion of the underground water table is performed in a the drainage tunnel drilled underneath an the estimated fault plane. However, the humidity inside the tunnel is almost 100%. In order to suppress the moisture effect, a scintillation counter with Cockcroft-Wwalton photomultipler tubes (CW-MPT) was developed and tested at the observation site. The counter was stably operated for 38 days without gain degrading. Based on the result, we constructed a muon detection system with CW-PMTs at the same site and started operation runs. In this work, the data from borehole-based measurement of the underground water levels were analyzed and discussed. It was confirmed that the comparison between muon and borehole data would be useful.
Reference13 articles.
1. Cockcroft, J. D. and Walton, E. T.: Experiments with high velocity positive ions (II) – The disintegration of elements by high velocity protons, P. Roy. Soc. Lond. A, 137, 229–242, 1932.
2. Dietrich, W. E., Reiss, R., Hsu, M.-L., and Montgomery, D. R.: A process-based model for colluvial soil depth and shallow landsliding using digital elevation data, Hydrol. Process., 9, 383–400, 1995.
3. George, E. P.: Cosmic rays measure overburden of tunnel, Commonwealth Engineer, Tait, Melbourne, Australia, 455–457, 1955.
4. Goebel, W.: A new modification of the cockcroft-walton voltage multiplier circuit, Nucl. Instrum. Meth., 67, 331–336, 1969.
5. Greinacher, N.: High Voltage DC Generator, Bull. Schweiz. Elek. Ver., 11, 59, 1920.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献