Minutes of Nov 18, 2009

Preliminary Agenda

1. updates of action items and items in progress
   • From canSAS VI
     • SAS Portal
     • 1D and 2D data formats
     • Standards - Extension of mailing list archives
     • IGOR develper's progress?
     • Is there a need for a GISAS working group?
   • From last meeting
     • World SANS directory (SAXS?)
     • Anybody besides Bruker come to canSAS session?
     • Long pulse spallation source project update if any?
   • Any other working group etc update?
2. Discussion regarding next canSAS meeting in 18 months and in Sydney (see notes from canSAS-VI)
   • 18 months = when and where
   • Sydney meeting. what format?
3. Discussion on including other facility representation
4. Discussion of portal issues and possible repository of SAS information
   • e.g. data for windows and sample environments (see notes from canSAS-VI)
5. Other issues and/or news from around the world

Present

• Adrian Rennie
• Rex Hjelm
• Daniel Clemens
• Elliot Gilbert
• Andrew Jackson
• Paul Butler
• Nick Terrill
• Pete Jemian
• Ken Littrell
• Steve King
• Young-Soo Han
• Claudio Ferrero
• Mitsuhiro Shibayama

Minutes

1. updates of action items and items in progress
   • From canSAS VI
     • SAS Portal
       • Paul has investigated finding a student and has identified funds.
     • 1D and 2D data formats
       • Pete - Nexus code camp has lead to a SAS format definition that he will post the URL to so we can review it and comment.
       • http://trac.nexusformat.org/definitions/browser/trunk/applications/NXsas.nxdl.xml defines minimum set of tags/info for small angle scattering. NB - this is for monochromatic scattering only : TOF and GI not considered.
       • Timeline for NXDL? (AJJ) - PRJ says approx. 6 months.
       • AJJ - Make sure we are really talking about reduced data. What is needed to allow the NXsas to be used for TOF data?
       • PRJ/SK - Have added namespaces to handle wavelength dependent transmissions etc.
       • RH/AR - Handling different q-space maps / detector geometries?
       • CF - noting meeting : http://www.esrf.eu/events/conferences/hdf5/hdf5/
       • PRJ - Action: Review of NXsas format?
       • Action: Get some North American people to CF's meeting.
       • AR to PRJ - any planned tools to read NXsas. Answer - Ideas: Translation app or browser/plotting app. Best answer would be strong bindings for various languages.
       • Watch and wait on nexus before leaping in to 2D.
       • PRJ - Licensing. Need debate within working group.
       • AR - Update on 1D usage? AR wrote to ILL (Andrew Harrison) regarding use of format and has had no response. AJJ - NCNR will support in next release. No other updates.
       • CF suggested that AR goes to visit new SAS beamline.
     • Standards - Extension of mailing list archives
     • IGOR develper's progress?
       • AJJ Talked with Jan Ilavsky.
       • AJJ asked KL for his current code to test compatibility.
     • Is there a need for a GISAS working group?
       • Continue to hold on this. AR - put high on agenda for next discussion. Should think about we should involve the reflectometry community.
   • From last meeting
     • World SANS directory (SAXS?)
       • AR prodded Ralf and it was updated. AR - people need to send Ralf info. ACTION: NIST and ISIS will update.
       • http://www.ill.eu/instruments-support/instruments-groups/groups/lss/more/world-directory-of-sans-instruments/
       • AR - PRJ was going to look at directory of SAXS. PRJ is going to build a web page with form for people to fill out. Essential PRJ is on it.
     • Anybody besides Bruker come to canSAS session?
     • Long pulse spallation source project update if any?
       • KL will let people know about report from Rome meeting.
   • Any other working group etc update?
2. Discussion regarding next canSAS meeting in 18 months and in Sydney (see notes from canSAS-VI)
   • 18 months = when and where
     • Agreed. Probably focused on 1D/2D.
     • North Americans will formulate a plan for next meeting.
   • Sydney meeting. what format?
     • Daniel? Meeting should be before SAS so that the results of discussions can be presented in body of SAS meeting in session.
     • EG : Suggests a 2day, Thu/Fri before SAS. No objections raised.
     • Who convene? Facilities? Location? Should we include GI and Refl?
3. Discussion on including other facility representation
   • SSRL / PSI / AU Synch.
4. Discussion of portal issues and possible repository of SAS information
   • e.g. data for windows and sample environments (see notes from canSAS-VI)
5. Other issues and/or news from around the world
   • Detectors
     • Koreans now have detector. Not tested with neutrons. ORNL have bioSANS detector working now. Local limit to 100 cps, global to 25000 cps.
     • RH has his detector working OK with new power supplies
     • SK - problems with discriminator cards. Gone through 5 total across two detectors.
     • KL - grounding and noise issues.