English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present the concept of a novel time-focusing technique for neutronspectrometers, which allows to disentangle time-focusing from beam divergence.The core of this approach is a double rotating-crystal monochromator that canbe used to extract a larger wavelength band from a white beam, thus providing ahigher flux at the sample compared to standard time-of-flight instruments, yetpreserving energy resolution and beam collimation. The performances of aspectrometer based on this approach are quantitatively discussed in terms ofpossible incident wavelengths, flux at the sample and $(Q,E)$-resolution.Analytical estimates suggest flux gains of about one order of magnitude atcomparable resolutions in comparison to conventional time-of-flightspectrometers. Moreover, the double monochromator configuration natively shiftsthe sample away from the source line-of-sight, thus significantly improving thesignal-to-noise ratio. The latter, in combination with a system that does notincrease the beam divergence, brings the further advantage of a cleaner accessto the low-$Q$ region, which is recognized to be of fundamental interest formagnetism and for disordered materials, from glasses to biological systems.

Disentangling time-focusing from beam divergence: a novel approach for high-flux thermal neutron spectroscopy at continuous and long-pulse sources