Journal of the Korean Physical Society

, Volume 64, Issue 4, pp 516–521 | Cite as

Development of a portable gas-filled ionization chamber

  • K. Y. ChaeEmail author
  • S. M. Cha
  • M. S. Gwak


A new portable gas-filled ionization chamber has been designed and constructed at the Physics Department of Sung Kyun Kwan University. To overcome the maximum count rate of ∼105 particles per second of a conventional ionization chamber, which utilizes a Frisch grid, and to enhance the portability of a detector, we adopted the design of multiple electrodes and modified it from the original designs by Kimura et al. and Chae et al. The new design utilizes a stack of multiple electrodes installed perpendicular to the optical beam axis. This configuration provides a fast response time for the detector, which is essential for high-rate counting. The device has been tested with a 241Am (t 1/2 = 432.2 years) radioactive α source, which mainly emits 5.486-MeV (branching ratio of 85%) and 5.443-MeV (branching ratio of 13%) α particles. An energy resolution of 6.3% was achieved.


Gas-filled ionization chamber Portable Multiple electrodes Fast response time Particle identification 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    A. N. James et al., Nucl. Inst. Meth. Phys. Res. A 267, 144 (1988).ADSCrossRefGoogle Scholar
  2. [2]
    K. Kimura et al., Nucl. Inst. Meth. Phys. Res. A 538, 608 (2005).ADSCrossRefGoogle Scholar
  3. [3]
    K. Y. Chae et al., Nucl. Inst. Meth. Phys. Res. A (submitted).Google Scholar
  4. [4]
    T. Yamaguchi et al., Eur. Phys. J. 150, 197 (2007).Google Scholar
  5. [5]
    K. T. Schmitt et al., Phys. Rev. Lett. 108, 192701 (2012).ADSCrossRefGoogle Scholar
  6. [6]
    S. H. Ahn et al., Bull. Amer. Phys. Sco. 56, No. 12 (2011), p. 105.Google Scholar
  7. [7]
    B. Manning et al., Bull. Amer. Phys. Sco. 56, No. 12 (2011), p. 33Google Scholar
  8. [8]
    W. R. Leo, Techniques for Nuclear and Particle Physics Experiments (Springer-Verlag, New York, 1994).CrossRefGoogle Scholar
  9. [9]
    S. R. Hunter, J. G. Carter and L. G. Christophorou, Phys. Rev. A 38, 58 (1988).ADSCrossRefGoogle Scholar
  10. [10]

Copyright information

© The Korean Physical Society 2014

Authors and Affiliations

  1. 1.Department of PhysicsSungkyunkwan UniversitySuwonKorea

Personalised recommendations