The ARCS radial collimator
1 Quantum Condensed Matter Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
2 Instrument and Source Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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Published online: 23 January 2015
We have designed, installed, and commissioned a scattered beam radial collimator for use at the ARCS Wide Angular Range Chopper Spectrometer at the Spallation Neutron Source. The collimator has been designed to work effectively for thermal and epithermal neutrons and with a range of sample environments. Other design considerations include the accommodation of working within a high vacuum environment and having the ability to quickly install and remove the collimator from the scattered beam. We present here characterization of the collimator's performance and methodologies for its effective use.
© Owned by the authors, published by EDP Sciences, 2015
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