Comparison of the efficiency of 63Ni beta-radiation detectors made from silicon and wide-gap semiconductors

S. I. Zaitsev, V. N. Pavlov, V. Ya. Panchenko, M. A. Polikarpov, A.A. Svintsov, E. B. Yakimov

Journal of Surface Investigation X-ray Synchrotron and Neutron Techniques · 2014 · 15 citations · 2 references

Concepts

Abstract

The current induced by the radiation from a 63 Ni film of variable thickness is simulated taking into account the real spectrum of emitted electrons and their angular distribution for GaN. The efficiency of β-radiation detectors made from Si and SiC is estimated based on the results obtained in this paper and previously. Using a scanning electron microscope the efficiency of β-radiation detectors made from Si and SiC under conditions corresponding to β radiation from a Ni film with a thickness of 3 μm and activity of 10 mCi/cm 2 is analyzed. It is shown that the efficiency of real Si-based structures is virtually as good as the efficiency of SiC-based structures.

References

2