Re: HiCANS (Hight Current Accelerator-driven Neutron Source)

[Yaroslav Filinchuk]

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

Dr Alan Hewat, NeutronOptics
Grenoble, FRANCE (from phone)
alan.he...@neutronoptics.com
+33.476984168 VAT:FR79499450856
http://neutronoptics.com/hewat 


___

On Wed, 6 Sept 2023, 13:31 Le Bail Armel,  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


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Re: HiCANS (Hight Current Accelerator-driven Neutron Source)

[Alan W Hewat]

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

Dr Alan Hewat, NeutronOptics
Grenoble, FRANCE (from phone)
alan.he...@neutronoptics.com
+33.476984168 VAT:FR79499450856
http://NeutronOptics.com/hewat
___


On Wed, 6 Sept 2023, 13:31 Le Bail Armel,  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
> ++
> Please do NOT attach files to the whole list  >
> Send commands to  eg: HELP as the subject with no body
> text
> The Rietveld_L list archive is on
> http://www.mail-archive.com/rietveld_l@ill.fr/
> ++
>
>
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Please do NOT attach files to the whole list 
Send commands to  eg: HELP as the subject with no body text
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