Hi Alan,

Accelerator-driven neutron sources are a lot cheaper than spallation sources. Moreover, Figure 54 in the ICONE document shows that the scientific productivity of neutron sources does not depend on the flux of the source. And the biggest point might be the return to building new neutron facilities.

Thank you, Armel, for sharing this document!

Best regards,

Yaroslav


On 06.09.2023 14:37, Alan W Hewat wrote:
Glad you are following neutron developments Armel. This document points out how French science has suffered due to the shutdown of the only national neutron sources, in Grenoble and Paris. It argues that ESS when it is finally operational, cannot possibly satisfy the national requirement if ILL is also shut down. Hopefully that won't happen any time soon, given the apparent renaissance of interest in nuclear due to the current energy crisis, and the neglect of science by governments for most of my 50 year life in France. It is however slightly worrying that instrument performance on a possible HICANS accelerator source is projected to be inferior to instruments on Orphée. That seems too pessimistic given the performance of ISIS in the UK.

But perhaps you were trying to use this document to make some other point :-) ?

Alan
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Dr Alan Hewat, NeutronOptics
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On Wed, 6 Sept 2023, 13:31 Le Bail Armel, <le-bail.ar...@orange.fr> wrote:

    Interesting document about neutrons in French, though the word
    "Rietveld"

    appears only once, page 162, the word "poudre" (=powder) is more
    frequent :

    https://2fdn.cnrs.fr/wp-content/uploads/2023/09/ICONE-digital.pdf
    <https://2fdn.cnrs.fr/wp-content/uploads/2023/09/ICONE-digital.pdf>

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