Measurement of the quenching and channeling effects in a CsI crystal used for a WIMP search

Autor: Lee, J. H., Kim, G. B., Seong, I. S., Kim, B. H., Kim, J. H., Li, J., Park, J. W., Lee, J. K., Kim, K. W., Bhang, H., Kim, S. C., Choi, Seonho, Choi, J. H., Joo, H. W., Lee, S. J., Olsen, S. L., Myung, S. S., Kim, S. K., Kim, Y. D., Kang, W. G., So, J. H., Kim, H. J., Lee, H. S., Hahn, I. S., Leonard, D. S., Li, Y. J., Yue, Q., Li, X. R.
Rok vydání: 2015
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1016/j.nima.2015.02.011
Popis: We have studied channeling effects in a Cesium Iodide (CsI) crystal that is similar in composition to the ones being used in a search for Weakly Interacting Massive Particles (WIMPs) dark matter candidates, and measured its energy-dependent quenching factor, the relative scintillation yield for electron and nuclear recoils. The experimental results are reproduced with a GEANT4 simulation that includes a model of the scintillation efficiency as a function of electronic stopping power. We present the measured and simulated quenching factors and the estimated effects of channeling.
Databáze: arXiv