Abstract

The TITAN facility at TRIUMF has recently initiated a program of performing decay spectroscopy measurements in an electron-beam ion-trap (EBIT). The unique environment of the EBIT provides backing-free storage of the radioactive ions, while guiding charged decay particles from the trap centre via the strong magnetic field. This measurement technique is able to provide a significant increase in detection sensitivity for photons which result from radioactive decay. A brief overview of this device is presented, along with methods of improving the signal-to-background ratio for photon detection by reducing Compton scattered events, and eliminating vibrational noise.

Highlights

  • TRIUMF’s Ion Trap for Atomic and Nuclear Science (TITAN) [1] is located at the Isotope Separator and Accelerator (ISAC) facility at TRIUMF, in Vancouver, BC, Canada

  • The addition of two new components to the TITAN system is planned for the near future; a cooler Penning-trap (CPET) to sympathetically cool highly charged ions (HCIs) with electrons or protons [7], and a multi-reflection time-offlight (MR-ToF) isobar separator [8]

  • The ion-trap environment allows for the detection of low-energy photons by providing backing-free storage, while simultaneously guiding charged decay particles away from the trap centre via the strong magnetic field

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Summary

Introduction

TRIUMF’s Ion Trap for Atomic and Nuclear Science (TITAN) [1] is located at the Isotope Separator and Accelerator (ISAC) facility at TRIUMF, in Vancouver, BC, Canada. The addition of two new components to the TITAN system is planned for the near future; a cooler Penning-trap (CPET) to sympathetically cool HCIs with electrons or protons [7], and a multi-reflection time-offlight (MR-ToF) isobar separator [8]. Both of these devices have been delivered to TRIUMF and should be installed in the TITAN system within the year. Troscopy program at TITAN, as well as recently employed methods of improving the overall photon detection sensitivity

Decay Spectroscopy Overview
Vibrational-Noise Reduction
PHDM-NS
Active Compton Suppression
Conclusions
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