An ultra-high vacuum chamber for scattering experiments featuring in-vacuum continuous in-plane variation of the angle between entrance and exit vacuum ports

Carl-Johan Englund; Marcus Agåker; Pierre Fredriksson; Anders Olsson; Niklas Johansson; Jan-Erik Rubensson; Joseph Nordgren

doi:10.1063/1.4931041

An ultra-high vacuum chamber for scattering experiments featuring in-vacuum continuous in-plane variation of the angle between entrance and exit vacuum ports

Rev Sci Instrum. 2015 Sep;86(9):095110. doi: 10.1063/1.4931041.

Authors

Carl-Johan Englund¹, Marcus Agåker¹, Pierre Fredriksson¹, Anders Olsson¹, Niklas Johansson¹, Jan-Erik Rubensson¹, Joseph Nordgren¹

Affiliation

¹ Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden.

PMID: 26429483
DOI: 10.1063/1.4931041

Abstract

A concept that enables in-vacuum continuous variation of the angle between two ports in one plane has been developed and implemented. The vacuum chamber allows for measuring scattering cross sections as a function of scattering angle and is intended for resonant inelastic X-ray scattering experiments. The angle between the ports can be varied in the range of 30°-150°, while the pressure change is less than 2 × 10(-10) mbars.