2015/11/24 by S.H.W. Wouters, Steinar H W Wouters, G. ten Haaf +9
Engineering · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Laser Design and Applications #physics.atom-ph #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1511.07790
arxiv created 2015/11/24 · openalex publication_date 2015/11/24 · arxiv updated 2015/11/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
In this paper we discuss the design and performance of a collimated Knudsen source which has the benefit of a simple design over recirculating sources. Measurements of the flux, transverse velocity distribution and brightness at different temperatures were conducted to evaluate the performance. The scaling of the flux and brightness with the source temperature follow the theoretical predictions. The transverse velocity distribution in the transparent operation regime also agrees with the simulated data. The source was found able to produce a flux of 1014 s-1 at a temperature of 433 K. Furthermore the transverse reduced brightness of an ion beam with equal properties as the atomic beam reads 1.7 × 102 A/(m2 sr eV) which is sufficient for our goal: the creation of an ultra-cold ion beam by ionization of a laser-cooled and compressed atomic rubidium beam.