In-beam internal conversion electron spectroscopy with the SPICE detector

TL;DR

The SPICE detector, combined with TIGRESS, enables in-beam internal conversion electron spectroscopy for nuclear reactions using stable and radioactive ion beams, enhancing nuclear structure studies.

Contribution

Introduction of the SPICE spectrometer with a magnetic lens and silicon detector for combined electron and gamma-ray spectroscopy at TRIUMF.

Findings

Successful commissioning of SPICE with TIGRESS.

Capability to perform in-beam electron and gamma-ray spectroscopy.

Initial performance demonstrates effective electron collection and detection.

Abstract

The SPectrometer for Internal Conversion Electrons (SPICE) has been commissioned for use in conjunction with the TIGRESS $\gamma$-ray spectrometer at TRIUMF's ISAC-II facility. SPICE features a permanent rare-earth magnetic lens to collect and direct internal conversion electrons emitted from nuclear reactions to a thick, highly segmented, lithium-drifted silicon detector. This arrangement, combined with TIGRESS, enables in-beam $\gamma$-ray and internal conversion electron spectroscopy to be performed with stable and radioactive ion beams. Technical aspects of the device, capabilities, and initial performance are presented.