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DREAM-a versatile powder diffractometer at the ESS

Schweika, W. LU ; Violini, N.; Lieutenant, K.; Zendler, C. LU ; Nekrassov, D.; Houben, A.; Jacobs, P. and Henry, P. F. LU (2016) In Journal of Physics: Conference Series 746(1).
Abstract

The instrument DREAM, in construction at the long pulse European Spallation Source (ESS), is a new type of neutron time-of-flight powder diffractometer, which utilizes additional choppers to meet the typical high resolution requests. Pulses will be of symmetric shape and their width can be varied from 10 μs to 1 ms, providing an unprecedented flexibility from highest to low resolution with optimized intensities at the superior brightness of the 5 MW source. The design is driven particularly by the needs and challenges for small and complex samples, large unit cell materials, thermoelectric cage structures or metal-organic framework structures, multiphase battery materials and complex magnetic structures. Therefore, the chosen wavelength... (More)

The instrument DREAM, in construction at the long pulse European Spallation Source (ESS), is a new type of neutron time-of-flight powder diffractometer, which utilizes additional choppers to meet the typical high resolution requests. Pulses will be of symmetric shape and their width can be varied from 10 μs to 1 ms, providing an unprecedented flexibility from highest to low resolution with optimized intensities at the superior brightness of the 5 MW source. The design is driven particularly by the needs and challenges for small and complex samples, large unit cell materials, thermoelectric cage structures or metal-organic framework structures, multiphase battery materials and complex magnetic structures. Therefore, the chosen wavelength bandwidth of 3.7 Å may cover well the peak intensities of the thermal and cold moderator used simultaneously and provides a sufficient Q (and d) range for obtaining diffraction patterns in a single setting. VITESS simulations show a performance that is about two orders of magnitude higher than current best instruments.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics: Conference Series
volume
746
issue
1
publisher
IOP Publishing
external identifiers
  • scopus:84994302359
ISSN
1742-6588
DOI
10.1088/1742-6596/746/1/012013
language
English
LU publication?
yes
id
aaa8ee4f-b926-4cfd-a102-54d85a01d6d9
date added to LUP
2016-12-07 11:40:38
date last changed
2017-06-25 04:57:04
@article{aaa8ee4f-b926-4cfd-a102-54d85a01d6d9,
  abstract     = {<p>The instrument DREAM, in construction at the long pulse European Spallation Source (ESS), is a new type of neutron time-of-flight powder diffractometer, which utilizes additional choppers to meet the typical high resolution requests. Pulses will be of symmetric shape and their width can be varied from 10 μs to 1 ms, providing an unprecedented flexibility from highest to low resolution with optimized intensities at the superior brightness of the 5 MW source. The design is driven particularly by the needs and challenges for small and complex samples, large unit cell materials, thermoelectric cage structures or metal-organic framework structures, multiphase battery materials and complex magnetic structures. Therefore, the chosen wavelength bandwidth of 3.7 Å may cover well the peak intensities of the thermal and cold moderator used simultaneously and provides a sufficient Q (and d) range for obtaining diffraction patterns in a single setting. VITESS simulations show a performance that is about two orders of magnitude higher than current best instruments.</p>},
  articleno    = {012013},
  author       = {Schweika, W. and Violini, N. and Lieutenant, K. and Zendler, C. and Nekrassov, D. and Houben, A. and Jacobs, P. and Henry, P. F.},
  issn         = {1742-6588},
  language     = {eng},
  month        = {10},
  number       = {1},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Conference Series},
  title        = {DREAM-a versatile powder diffractometer at the ESS},
  url          = {http://dx.doi.org/10.1088/1742-6596/746/1/012013},
  volume       = {746},
  year         = {2016},
}