Nuclear Spectroscopy using Novel, Position-Sensitive Detectors

POSTER

Abstract

Novel, position-sensitive particle and gamma detectors were tested for applications in nuclear physics experiments. Angular correlation between the alpha particle decay of $^{224}$Ra to an excited state in $^{220}$Rn, and the subsequent gamma decay to the ground state in $^{220}$Rn was measured. A 1 inch$^{2}$ position-sensitive avalanche photo-diode (PSAPD) was used for detecting the alpha particles and a planar germanium double-sided strip detector (GeDSSD) for detecting the gamma rays. A large solid angle coverage has been achieved in a single, fixed geometry, due to the excellent position resolution of the PSAPD (400 microns) and the GeDSSD (5 mm) by positioning the detectors close to the source. Distortion correction algorithms for the PSAPD, pixel efficiencies, method of angle reconstruction and the measured angular correlation will be presented.

*Work supported by the U.S. Department of Energy.

Authors

  • S. Lakshmi

    • University of Massachusetts, Lowell, MA, USA

  • P. Chowdhury

    • University of Massachusetts, Lowell, MA, USA

  • E. Jackson

    • University of Massachusetts, Lowell, MA, USA

  • S.S. Hota

    • University of Massachusetts, Lowell, MA, USA

  • S.K. Tandel

    • University of Massachusetts, Lowell, MA, USA

  • C.J. Lister

    • Argonne National Laboratory, Argonne, IL, USA

  • S. Gros

    • Argonne National Laboratory, Argonne, IL, USA

  • M. McClish

    • Radiation Monitoring Devices Inc., Watertown, MA, USA

  • R. Farrel

    • Radiation Monitoring Devices Inc., Watertown, MA, USA

  • K. Shah

    • Radiation Monitoring Devices Inc., Watertown, MA, USA