title: A low noise, nonmagnetic fluorescence detector for precision measurements.
abstract: We have built a fluorescence imaging system with a nonmagnetic front end photodiode array (PDA) located inside a magnetically shielded science region. The PDA is connected by a bundle of 2 m long mini-coaxial cables to a set of external bootstrapped amplifiers with 10(7) Ω trans-impedance and a peak light-equivalent spectral noise density of 2.0 pW∕√Hz in a 150 kHz bandwidth. The detector is being used for a cold atom electron electric dipole moment search experiment.
authors.affiliation: 104 Davey Lab, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
authors.forename: Kunyan
authors.initials: K
authors.lastname: Zhu
authors.forename: Neal
authors.initials: N
authors.lastname: Solmeyer
authors.forename: David S
authors.initials: DS
authors.lastname: Weiss