c phase. You will find more ISIS work on C60 with inclusion compounds,
eespecially superconducting K3C60 on
https://neutronoptics.com/downloads/K-C60-icsd.jpg including Peter
Steven's paper.
Kind Regards, Alan.
On Fri, 24 Sept 2021 at 16:18, Alan Hewat
wrote:
> Dear Francois.
>
> Tha
=titlehttps://orcid.org/-0001-5339-3002
>
> ++
> 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
__
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
from my telephone
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
-- Forwarded
In general no. In the extreme case a single crystal would have reflections
that were never exited or reached the detector.
__
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
from my telephone
+33.476.98.41.68
ders. Alan.
______
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
from my telephone
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
On Tue, 14 Apr 2020, 11:20 Alexandros Lapp
speakers: Stephan Rosenkranz, Bo Iversen
*Perovskites *(MS-14, 23 Sun PM)
Chairs: Chris Ling, Philip Lightfoot
Invited speakers: James Rondinelli, Joke Hadermann
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http
Yes, of course Luca.
Best wishes Alan
__
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
from my telephone
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
welcome. :)
>
> --
>
> *Dr. Xiaodong (Tony) Wang*
>
> *Research Infrastructure Specialist (XRD)*
>
> Central Analytical Research Facility (CARF) | Institute for Future
> Environments
>
> Queensland University of Technology
>
>
ease 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/
> ++++++
>
>
--
ble. Don't believe that everything can be determined by powder
diffraction :-)
Alan
______
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
from my telephone
+33.476.98.41.68
http://www.NeutronO
on
http://www.mail-archive.com/rietveld_l@ill.fr/
++
--
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat TVA FR 79499450856
d an account of his exceptional contributions.
Alan
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat TVA
OK thanks David. Perhaps write to the author. Version 2.76 installs and
runs under 64-bit Windows-10. Alan
>From my mobile phone:
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
+33.476.98.41.68
http://www.NeutronOptics.com/he
t; The Rietveld_L list archive is on
> http://www.mail-archive.com/rietveld_l@ill.fr/
> ++
>
>
--
__
* Dr Alan Hewat
:-)
>From my mobile phone:
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
++
Please do NOT attach files to the whole list
S
> You dig !
Please stop digging Armel. Loaded guns, grave digging and religion are off
limits.
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/he
indexing, search-match and structure DETERMINATION from
neutron powder data. Very few citations though; crystallographers largely
ignored neutron powder diffraction before 1987 and Hi-Tc :-)
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33
ystallographic technique of interest in Physics, and when it started
to be taken seriously by the crystallography community. And don't worry if
the Rietveld list discussion is sometimes conflictual. “*If necessity is
the mother of invention, conflict is its father*.”
Alan
__
> text
> The Rietveld_L list archive is on
> http://www.mail-archive.com/rietveld_l@ill.fr/
> ++++++
>
>
--
__
*
*> Argh ! Shame on us three ! *
Yes, we went too far. Sorry Armel. But Robert only has to read the footer
at the bottom of every post to find how to remove himself.
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
h
the 1972 Rietveld code
<http://www.ccp14.ac.uk/ccp/web-mirrors/hewat-rietveld/index.html>.
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
stra and
Rietveld (1969) instead of just Rietveld (1969). I would also call
quantitative phase analysis from powders "profile refinement" rather than
Rietveld refinement, and reference Werner et al. (1979).
______
mmage to him.
Gauss and Legendre's work shows that science is not performed by
individuals in a vacuum.
*Now we call it "Least Squares Refinement" and not "Gauss Refinement".*
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.
4.ac.uk/ccp/web-mirrors/hewat-rietveld/
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronO
t case, the name "Rietveld technique" isn't used to credit the
> inventor(s) of the methodology, but rather to acknowledge the author of the
> original programming code.
>
>
>
>
>
>
> Kind Regards,
>
>
> *Scott A Speakman, Ph.D. *Principal S
cellent list-server, so I became
> member and posted our message. Now I�m happy to mention that since that day
> Acta A counted almost 700 downloads for the paper, so we clearly reached
> our goal.
> >
> > I was also pleased to follow the discussion, very lively and
> intere
pinion and claimed for ideas too and
> possibly for mathematics as well.
>
>
>
> Best,
>
>
>
> Armel
>
>
>
>
>
>
> ++
> Please do NOT attach files to the whole list
rd
for what you Believe :-) Alan.
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
++
> 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/
>
t;
> 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/
> ++
>
I
organised on "30 Years of Rietveld Refinement
<http://ww1.iucr.org/news/v7n4/7-4.pdf>" (page 7).
At my age, I prefer Googling the literature rather than relying on my
remembrances :-)
On Fri, 17 Aug 2018 at 00:22, Alan Hewat
wrote:
> > * I remember that a Fortran ver
y/
>
>
>
>
>
>
>
>
>
>
>
>
> ++
> 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
hors.
>
> Your example of Finger, Cox, and Jephcoat is a good one. Yes, we did stand
> on the shoulders of others, but I think we gave them credit in the
> manuscript.
is Open Access and can be
> downloaded from: http://journals.iucr.org/a/issues/2018/02/00/ib5058/
> ib5058.pdf
>
> At the moment it is the most read article of Acta Cryst. A of the last 6
> months: http://178.33.252.149/a/services/mostread.html
>
> Kind greetings,
> Henk Sche
DiffEngMat - 2018
*Diffraction on Energy Materials* *School*
8-9 October 2018
ILL Grenoble, France
Email: diffeng...@ill.eu <%20diffeng...@ill.eu>
URL: https://indico.ill.fr/EnergyMaterials
_____
Francois GOUTENOIRE
> e-mail: francois.gouteno...@univ-lemans.fr
> Tel: 02.43.83.33.54 <02%2043%2083%2033%2054>
> FAX: 02.43.83.35.06 <02%2043%2083%2035%2006>
> Département des Oxydes et Fluorures
> Institut des Molécules et des Matériaux du Mans
> IMMM - UM
f
the relative merits of commercial products. If in doubt, it is best to ask
first, as some members already do.
Alan.(Rietveld list manager)
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/
sers of such centres, who
will then hopefully buy their own copy to be able to continue refining
their data when they get back home.
Alan
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://ww
hape parameters
> for the main phase?
>
Yes. Then you can refine the cell parameters and scale factors for the
impurity phases. Be careful not to include too many peak shape parameters -
start by constraining them to be the same for all phases.
___
ine only the scale factor (amount)
for it. Repeat for other possible impurity phases, and be careful not to
introduce too many parameters until you have a good starting model.
If you can, also try to prepare a sample with fewer impurities :-)
Regards, Alan.
___
t;*
_____
From my mobile telephone
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
_
+
o 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/
> ++
>
>
>
--
___
12-16 December 2016
ILL Grenoble, France
Email: ntmsd2...@ill.fr
URL: https://indico.ill.fr/indico/event/53
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
gt; The Rietveld_L list archive is on http://www.mail-archive.com/
> rietveld_l@ill.fr/
> ++++++
>
>
>
--
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
con.
Alan
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
Please do NOT attach fi
Our Rietveld list obituary for Hugo Rietveld has now been published online
by J.Appl.Cryst.
http://journals.iucr.org/j/issues/2016/04/00/es0421/index.html
Thank you for all the public and private messages of sympathy.
Alan
__
* Dr Alan Hewat
ron powder diffraction and Rietveld Refinement.
Having achieved all of that, and with a loving family and friends, he will
surely rest in peace.
Alan Hewat (AH), Bill David (WIFD) and Lambert van Eijck (LvE) July 2017
__
* Dr Alan
m to try to prepare a sample without impurity phases. The
chemistry of mixed valence heavy metal oxides is difficult enough, even
with neutron diffraction let alone x-ray powder diffraction, without having
poorly characterised impurity phases to contend with.
Alan
_____
tps://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecord&RN=17058181
You might like to add it to COD :-)
Alan.
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http
Good work Armel. Yes, sharing of open databases is encouraged :-) But
please don't attach files.
Alan
_
From my mobile telephone
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
+33.476.98.41.68
http://www.NeutronOptics.com/
-
>
> Prof. Matteo Leoni, PhD
>
> DICAM - University of Trento
> via Mesiano, 77
> 38123 Trento - Italy
>
> Tel +39 0461 282416 Fax +39 0461 282672
>
> e-mail: matteo.le...@unitn.it
>
> --
in house,
quality marked, cross referenced and corrected when needed."
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.N
to first determine if the
structures have been published. If not, you will have to determine them
yourself. It is not so difficult if you have good data and know the space
group and lattice dimensions.
Alan
__
* Dr Alan Hewat, NeutronOptics, Grenobl
stal. Organisation de structures
comportant des empilements de chaines (Te O4)n. Dimorphisme de Na2TeO4"*
Lapasset, J.;Moret, J. (1985) Acta Crystallographica C41, 1558-1562
<http://scripts.iucr.org/cgi-bin/getarticleid?issn=0108-2701&volume=41&fpage=1558&details=yes>
_____
t; ++
> 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/
> +++
Rhein in Germany offer many accommodations at moderate prices to lodge you
during the conference.
Hoping to see you in Basel in August this year!
Sincerely, in the name of the National Organizing Committee,
Katharina M. Fromm and Juerg Schefer
__
* Dr Alan
>
> I didn’t realize there were so many sub-developments...
>
Still, modern x-ray powder diffraction is the most important
sub-development...
Alan
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
of NaH and NaD", C. G. Shull, E. O.
Wollan, G. A. Morton and W. L. Davidson, Physical Review 1948, 73, 842-847
Alan
On 31 January 2016 at 21:30, Alan Hewat
wrote:
> By automated I mean simply producing digital data, in x y pairs
>
>
> I assumed you meant automated steppin
You must be younger than I thought Jim, with your 1980 memories, or else I
am older than I think :-)
Alan.
--
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptic
ed with a non-laboratory source
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
Please d
>
> Brute force is a nicer way of putting it than blind luck :-)
Does "Tour de force" work in American ?
I have had that get by US reviewers, though they otherwise correct my
English :-)
Alan.
______
* Dr Alan Hewat, NeutronOptics,
is on
> http://www.mail-archive.com/rietveld_l@ill.fr/
> ++
>
>
>
--
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
+++
pler.)
BTW, thanks for using dropbox instead of an attachment. That's the way to
go...
--
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
h
++
> 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/
> ++++
m/faq.html#attachments and the bit about
performance.
Frankly, I am indeed a little old-fashioned. If you can't find it with
Google... it doesn't exist.
Alan.
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.6
with differences depending on language and
> culture.)
>
> Regards-
> David
>
> David Elbert
> Earth and Planetary Sciences
> Olin Hall
> Johns Hopkins University
> 3400 N. Charles St
> Baltimore, MD 21218
>
> (410) 516-5049
>
> elb...@jhu.edu
>
er if you can buy the sintered Al2O3 disk, if indeed you want a disk
rather than powder.
Alan
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.Ne
>
>
> ++
> 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/
ntation.
>
> ++
> 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/
> ++
>
I was not complaining about the cost, just questioning what was quoted -
only two thousand CHF ? Does that include a precise temperature controller
- or just the hot air ?
_
From my mobile telephone
Dr Alan Hewat, NeutronOptics, Grenoble
2000 CHF? Precise temperature control is essential since often you will
want to work near transitions where you risk destroying your sample. That
also costs.
_
From my mobile telephone
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
+++++
>
>
>
--
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
-
>
> ++
> 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 archi
droid 5.0 phone, wherever I am, just like SMS, Tweets or whatever. So, if
it helps, just think of email as a kind of bigger tweet.
Re-invent the wheel - and name it something else. Alan.
Sent from my phone.
______
* Dr Alan Hewat, NeutronOptics, G
he subject with no body
> text
> The Rietveld_L list archive is on
> http://www.mail-archive.com/rietveld_l@ill.fr/
> ++++++
>
>
>
--
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
+++
t assume that because fewer people post, there are fewer people
interested. But certainly prepare a graph if you wish. Just don't post it
to all 1500+ members :-)
Kind regards, Alan.
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.9
- laughing all the way to the bank.
Alan
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
Please d
st archive is on
> http://www.mail-archive.com/rietveld_l@ill.fr/
> ++++++
>
>
>
--
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
lin.de
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
Please do NOT attach files
e article:
http://news.sciencemag.org/biology/2015/05/electron-microscopes-close-imaging-individual-atoms
BTW Mike, when I said that all structures are triclinic I was joking;
actually most of them are monoclinic:-)
Alan.
______
* Dr Alan Hewat, NeutronOptics, G
kable.
Kind regards, Alan.
PS I learned British English as a foreign language, but welcome your
reference for further reading:
http://www.buzzfeed.com/lukelewis/what-british-people-say-versus-what-they-mean
__
* Dr Alan Hewat, Neutr
far than the gedanken experiments on
XFEL sources to which he referred.
Regards, Alan.
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.N
indeed be numbered :-)
Alan
* http://en.wikipedia.org/wiki/The_Hunting_of_the_Snark
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http:
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/
> ++
>
>
>
--
we should
> start looking for ways to prevent this kind of degradation in generally
> trustworthy journals...
>
> With best regards,
> Leo
>
>
> 2015-05-09 6:39 GMT-03:00 Alan Hewat :
>
> Dear Rietveld list.
>>
>> Good to see so many people asking for the list
first
> section, named “Who can send messages.” Available choices include:
> ...
> publicnomultipart
> Anyone may send to the list. Messages with attachments are
> simply rejected.
>
> Good luck!
> Song Zhen
>
>
> --
>
> Song Zhen
>
> Department of
they elbow their way through a crowd. (I only do that when I
really need to). So if you really need to attach a document, go ahead.
After all, you can still read the list on the archive.
Alan
___
scattering methods
would be a plus. The position is available immediately. For further
information contact Igor Levin, igor.le...@nist.gov.
Kind Regards,
Igor Levin
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http
serves a useful purpose.
There are few interesting discussions, and apparently few people actually
read the posts.
Alan
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronO
his rule, which is stated in the footer to
every message, you will be temporarily suspended from the list.
Alan.
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/he
gt; http://www.mail-archive.com/rietveld_l@ill.fr/
> ++
>
>
>
--
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
P
> comuníquelo a la mayor brevedad posible, por medio de llamada telefónica,
>> fax o por este mismo medio, procediendo a la destrucción inmediata de este
>> mensaje. Gracias.
>>
>>
>>
>
> +++++
ering power of the atoms for x-rays. The HREM images illustrate the
problem.
Good luck ! Alan.
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http
++
> 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/
> ++++++
no body
> text
> The Rietveld_L list archive is on
> http://www.mail-archive.com/rietveld_l@ill.fr/
> ++++++
>
>
>
--
__
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
_
ing list, which has over 1000 members who can advise you about specific
problems. To join, send an email to with the title:
SUBSCRIBE Rietveld_L "your name and lab"
With kind regards, Alan Hewat (Rietveld list manager)
__
* Dr Alan Hewa
lue en
temps)*
- 1h30 : Andrei Rogalev : *Sondes locales (Xanes Exafs XMCD)*
5. Exposés d'ouverture
- 1h : David Carpentier : *Isolants topologiques*
- 1h : Nathalie Viart : *Les méthodes de synthèse ou élaboration de
matériaux.*
__
ose precautions should be second nature, especially in a
chemistry or radiation laboratory.
Alan
______
* Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE *
+33.476.98.41.68
__
Dr Alan Hewat, NeutronOptics, Grenoble FRANCE
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
On 10 Feb 2014 06:42, "Dave Billing" wrote:
> Morning All,
>
>
>
> Please find attached an
__
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
+33.476.98.41.68
http://www.NeutronOptics.com/hewat
__
++
Please do NOT attach files to the whole list
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