canSAS-2012

Meeting of canSAS working groups

Purpose

Work on specific matters important to the canSAS community as decided in previous conference calls. It is expected that those attending this working session will already have strong foundation and understanding and will come ready with knowledge, tools, and ideas to make significant progress during the event. The specific projects and tasks, as well as the list of participants, are described on this wiki and will be revised as the event draws near.

The three main themes are:

• Treated data format - developing a standard for multidimensional treated data and resolving issues that arise with the 1-d standard and its implementaion.
  • Discussion Page : 2012 Data Discussion
• Standardisation - intercomparison of measurements and software for data reduction and analysis so as to assess experimental and intstrumental reliability
  • Discussion Page : 2012 Standards Discussion
• Development of a Global SAS web portal. This should be a general point of entry for the community to find information about small-angle scattering.
  • Discussion Page : 2012 Web Discussion

This page provides discussion of the themes, preliminary work and ideas : 2012 Discussion

Outcomes

• 2-d data format
• A plan for standards
• Global SAS Web Portal
• presentation at SAS2012

Dates

• 2012 July 28 - 31 (Saturday - Tuesday, inclusive)

Meeting Location

Uppsala University
Building: Angstrom Laboratory [1]
Room(s): TBA

Schedule

• arrive the previous day (Friday, 2012-07-27)
• conference check-in first morning (Saturday, 2012-07-28), location TBA
• meet all day (Sunday, 2012-07-29), location TBA
• meet all day (Monday, 2012-07-30), location TBA
• meet all day (Tuesday, 2012-07-31), location TBA
• checkout next day (Wednesday, 2012-08-01)

Daily Agenda

Meeting room is TBA

Here is the daily schedule (tentative):

time	description	comments
8:45 - 10:00 AM	plenary	previous day's report and question
10:15 - 12:30 PM	morning session	work in groups
12:30 - 2:00 PM	lunch	TBA
2:00 - 4:30 PM	afternoon session	work in groups
4:30 - 4:45 PM	plenary	tea, coffee
4:45 - 6:30 PM	plenary	reports and discussions
6:30 - 8:00 PM	dinner	TBA
8:00 PM - ?	evening discussions	ad hoc

Planning

Business Matters

• Re-enunciate purpose and benefits of a standard reduced data format
  • 1D Format
  • agree a proposed foreign namespace extension of the current 1D standard (required to enable, for example, t-o-f instruments to store auxillary wavelength-dependent non-I(Q) data in the same output files)
    • see Section 1.6.5 in here
    • and look at this example
    • or this one
  • agree resultant changes to the schema/stylesheet

   ARJN - I would recommend that during this meeting that the current format then be 'parked', the new 2D format
          should be flexible enough to handle 1D and 2D data

• • 2D Format
  • define minimum necessary for reduced data
    • review previous discussions on 2D
    • considerations specific to 2D reduced data
    • consider forward looking issues such as
      • grazing incidence
      • event mode analysis
  • suggest format framework (NeXus extension, canSAS 1D extension, other) with brief discussion of the reason for the choice (including options considered, pros and cons of each, and final weighing)
    • compare with NeXus definitions for:
      • NXsas
      • NXiqproc
  • Guide to how to make implementation easy.
  • Create straw format suitable for test/demonstration use and convert some test data for such a demonstration.
  • Provide a plan for presentation at SAS 2012
• Standards
  • Purpose and goals: Intercomparison of data measured on the same sample with different instruments and different techniques (SAXS, SANS, light scattering etc.) can prove valuable in a number of ways. In particular it aids understanding of details of the experimental methods and it can help assess reliability. In a similar way, looking at results of data reduction or analysis generated with different software can provide valuable information about performance and verification of methodology. Specifically these activities should:
    • Provide Quality Assurance/Quality Control,
    • Improve (reduce) uncertainties of SAS measurements in general,
    • Help each facility continuously improve performance and quality of data.
  • We will discuss what types of tests are interesting/important:
    • Beam intensity standards - there are several different ways to quantify this
    • Standards to test resolution
    • Absolute intensity calibrations,
    • Materials for Q calibration,
    • etc. etc,
  • Some other related issues:
    • Inelastic,
    • Multiple scattering,
    • Wavelength contamination,
    • Detector efficiencies at different wavelengths
    • limits in signal to noise - how weak a signal can be reliable extracted;
    • etc.
  • Outcomes needed are:
    • A written plan to sustain long term effort in this area
    • This should describe how to seed, co-ordinate and publicise “ad-hoc” projects ,
    • Assess how frequently exercises can be undertakem
    • Define good ways to disseminate/share results. This will including “advertising” projects and using them as input for other activities.
  • We should aim to define a list of 2 or 3 projects for work in the near term. This should include a plan of action and participants for each.
  • We shoud have a plan for presentation at SAS 2012. (This might just be an announcement of the plan and see who wants to participate?.)
• Global SAS Web Portal
  • define scope, purpose, and goal of portal
  • list content type to which such a portal should give access.
  • Suggest method for hosting
    • ?more distributed or more centralized,
    • ?under auspices of a particular facility or SAS commission
    • ? .. or both etc)
  • Build a working straw landing page prototype
  • Build at least 2 or 3 subpages and/or designs on paper
  • plan for presentations
    • SAS 2012
    • SAS commission

Projects and Tasks

These items are sorted in order of priority that they be finished.

1. 2-D format
2. Standardization
3. SAS web portal
4. ...

Presentations

1. the canSAS 1D, lessons learned
2. ...

Practical Matters

Registration

Please inform Adrian Rennie of your intention to particpate and send details of your arrival and departure dates. You should book the accommodation directly with the hotel - see below.

Hotel

Clarion Hotel Gillet, Uppsala
Dragarbrunnsgatan 23,
753 20 Uppsala, Sweden

• Expect hotel rate to be 570 SEK for 1 Single Bed (approximate, subject to change)
  • Please reserve your own rooms directly with the hotel (website, phone, ...)

Please reserve your own rooms directly with the hotel:

Web site

http://www.clarionhotelgillet.com/

telephone

+46 (0) 18 68 18 00

fax

+46 (0) 18 68 18 18

e-mail

cl.uppsala@choice.se

map reference

Directions and Maps

• map to hotel: google directions from airport
• airport: Stockholm Arlanda (ARN): international
• taxi: Uppsala Taxi +4618 100000
• train: Trains from airport to Uppsala take about 20 minutes. Frequency every 30 minutes. map reference

Host

• Adrian Rennie
  • institute: Uppsala University
  • email: Adrian.Rennie@fysik.uu.se
  • office phone: +46184713596

Costs

• Conference fee: no fee
• regular meals (breakfast, lunch, dinner) will be traveler's expense

Equipment

item	quantity	who provides?
projector & screen		host
LCD displays, keyboards, & mice		host
electrical power extension cords		host
foreign electrical power adapter	as needed	traveler
Wi-Fi connections	sufficient	host venue

Participants

participant	affiliation	arriving	departing	registration?	other
Adrian Rennie	Uppsala University	host	host	host
Paul Butler	NIST	2012-07-27	2012-08-01	Yes
Andrew Jackson	ESS	2012-07-27	2012-08-01	Yes
Pete Jemian	APS	2012-07-27	2012-08-01	Yes
Steve King	ISIS	2012-07-27	2012-08-01	tba
Tobias Richter	Diamond Light Source	tba	tba	Yes
Lionel Porcar	Institut Laue Langevin	tba	tba	Yes

Final Report

-tba-