Performance of a large volume liquid scintillation detector for the measurement of fast neutrons

Jing Jun Zhu, Ke Jun Kang, Yuan Jing Li, J. W. Kwak, H. Bhang, S. Y. Kim, S. C. Kim, S. K. Kim, H. S. Lee, J. Lee, S. S. Myung, M. J. Lee, J. I. Lee, Y. D. Kim, M. J. Hwang, Y. J. Kwon, I. S. Hahn, H. J. Kim, Li Jin

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Abstract

The KIMS collaboration is an experimental group searching for the Weakly Interacting Massive Particle (WIMP) which is one of the strongest candidates of dark matter. In a WIMP search experiment, the neutron is an important background because the nuclear recoil signal of a neutron is indistinguishable from that of a WIMP. We have constructed a 20-liter liquid scintillation detector to measure the neutron background. We present the performance of the neutron detector, as well as its structure and electronics system. We have achieved a good neutron/gamma separation and a good position measurement. A position dependent energy calibration has also been performed to correct the nonlinear response of the detector for different particle incident positions.

Original languageEnglish
Pages (from-to)202-206
Number of pages5
JournalJournal of the Korean Physical Society
Volume47
Issue number2
Publication statusPublished - 2005 Aug 1

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Zhu, J. J., Kang, K. J., Li, Y. J., Kwak, J. W., Bhang, H., Kim, S. Y., Kim, S. C., Kim, S. K., Lee, H. S., Lee, J., Myung, S. S., Lee, M. J., Lee, J. I., Kim, Y. D., Hwang, M. J., Kwon, Y. J., Hahn, I. S., Kim, H. J., & Jin, L. (2005). Performance of a large volume liquid scintillation detector for the measurement of fast neutrons. Journal of the Korean Physical Society, 47(2), 202-206.