Progress Towards Measurement of the Anapole Moment of $^{\mathrm{137}}$Ba$^{\mathrm{19}}$F

Weak interactions inside the nucleus produce a toroidal current distribution around the axis of nuclear spin. This current distribution, known as the nuclear anapole moment is the dominant source of nuclear spin-dependent parity violation (NSD-PV) effects for nuclei with nucleon number $A\ge $\textit{20. }We propose to measure the anapole moment of $^{\mathrm{137}}$Ba$^{\mathrm{19}}$F. To diagnose systematics and establish a measurement sequence we use $^{\mathrm{138}}$Ba$^{\mathrm{19}}$F, which has negligible NSD-PV effects. $^{\mathrm{138}}$Ba$^{\mathrm{19}}$F has a larger isotopic abundance and fewer hyperfine levels compared to those of $^{\mathrm{137}}$Ba$^{\mathrm{19}}$F. Therefore fluorescence signals from $^{\mathrm{138}}$Ba$^{\mathrm{19}}$F are approximately \textit{26} times larger than those from $^{\mathrm{137}}$Ba$^{\mathrm{19}}$F. Here we present \quad planned improvements to our apparatus, including a magnetic hexapole lens to improve the molecular beam flux and preliminary spectroscopy measurements with $^{\mathrm{137}}$Ba$^{\mathrm{19}}$F.