  We have developed and implemented a compact transparent nozzle for use in
laser vaporization sources. This nozzle eliminates the need for an ablation
aperture, allowing for a more intense molecular beam. We use this nozzle to
prepare a molecular beam of aluminum monohydride (AlH) suitable for ion trap
loading of AlH$^+$ via photoionization in ultra-high vacuum. We demonstrate
stable AlH production over hour time scales using a liquid ablation target. The
long-term stability, low heat load and fast ion production rate of this source
are well-suited to molecular ion experiments employing destructive state
readout schemes requiring frequent trap reloading.

Atomic Physics