A 4π Fluorescence Detection Region for Collinear Laser Spectroscopy
Abstract
We report on a novel detection system for collinear laser spectroscopy which provides an almost 4π solid angle for fluorescence photon detection by employing curved surface mirrors. Additional parabolic angular filters offer passive stray light suppression and can be configured to match the experimental conditions. The mirror surfaces have an excellent reflectivity over a broad band of wavelengths in the optical spectrum and can be substituted to expand the wavelength acceptance range even further. Experiments with this system were performed at two collinear laser spectroscopy setups, including the laser spectroscopic investigation of 36Ca using rates of 25/s at NSCL, MSU.
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