Data Formats Working Group - Revision history

Ajj at 09:24, 2 April 2025

2025-04-02T09:24:36Z

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	= Latest News =		= Latest News =

	[[User:Ajj\|Andrew Jackson]]: 2025-04 : [[~~PolSANSNXcanSASWorkshop\|~~2nd Workshop on supporting Polarised SANS data]] in [[NXcanSAS v1.1\|NXcanSAS 1.1]] held at ESS on 2nd April.		[[User:Ajj\|Andrew Jackson]]: 2025-04 : [[2nd Workshop on supporting Polarised SANS data]] in [[NXcanSAS v1.1\|NXcanSAS 1.1]] held at ESS on 2nd April.

	[[User:Smk\|Steve King]]: 2024-09 : Proposals for [[NXcanSAS v1.1\|NXcanSAS 1.1]] in development		[[User:Smk\|Steve King]]: 2024-09 : Proposals for [[NXcanSAS v1.1\|NXcanSAS 1.1]] in development

Ajj: /* Latest News */

2025-04-02T09:23:54Z

Annikastellhorn at 08:52, 5 November 2024

2024-11-05T08:52:04Z

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	Please address all questions and answers to this Google group.		Please address all questions and answers to this Google group.

			= Session Notes SAS2024 - Sun 2024-11-03 =
			=== Topic 1: Magnetic/ Polarized SANS ===
			* A new proposal for the .nxs format has been published on the wiki (see section "Latest News"), e.g. including the combination of all four polarization spin channels, as well as the necessary storage of the polarization efficiency information, the metadata, sample history, etc.

			=== Topic 2: Complementary data ===
			* It has to be addressed how multimodal experiments can be taken into account, i.e., we will need a data format for the storage, reading, and processing of multi-dimensional data.

			=== Topic 3: Summary & To-Do ===
			* Further extending the magnetic/ polarized SANS data format description?
			* Complementary data description
			* Advanced resolution descriptions of 1D,2D,3D resolution functions - here the question was raised if this topic should form a separate working group!
			* Which techniques all have to be taken into account for multimodal experiments?
			* Should a hackathon be organized? If yes, at the European Spallation Source?

			=== Notes from the discussion round: ===
			==== Related to magnetic/ polarized SANS ====
			* Polarized beam issues - who can be contacted for this topic at which source? (This hasnt been discussed thoroughly)
			* This formulism should not only be inserted for polarized neutrons, but also for polarized X-ray measurements! Note1: The proposed format is specialised on the polarization of neutrons, the proposed data format should be checked. Note2: Anyhow also a proposition for the data format of polarized X-ray measurements should be done! Should for this purpose the community of polarized neutrons and polarized X-rays work together?
			* Also depolarization effects from the sample have to additionally be taken into accound! Note: Shouldnt this be part of the data analysis, at it is not per se clearly distinguishable from the polarization efficiency?

			==== Related to resolution functions ====
			* Important raised question: When speaking about a 3D Q-resolution function: what do we define as Qx,Qy,Qz? Do the Q-components in the standard definition have to be corrected for a projection issues due to flat detectors? Note1: Typically the measurement of Qx,Qy,Qz on a flat plane (flat detector) has to be corrected to correspond to the definition of Qx,Qy,Qz on Ewald sphere. Only these corrected Q-values should be exported for users. Note2: Actually this is not a question of correcting Q, but correcting the angles. Note3: This should be done for both, neutron and X-ray measurements! Note4: For a reliable correction one should measure and correct for a reference sample.
			* In reference measurements the beam profile should be logged, as it goes hand in hand with defining the resolution function
			* The question has been raised how to store/record the information on the resolution function? How can we keep the description of data formats in general easily extendable?
			* The action has been raised to have a working meeting for this topic next year (2025)
			* In general, the formation of a seperate working group on this topic was favoured by the audience! The relevant people should come together, and importantly, from different facilities/fields

Ajj at 01:27, 3 November 2024

2024-11-03T01:27:39Z

← Older revision		Revision as of 01:27, 3 November 2024
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	= Latest News =		= Latest News =

	[[User:Smk\|Steve King]]: 2024-09 : Proposals for NXcanSAS 1.1 in development		[[User:Smk\|Steve King]]: 2024-09 : Proposals for [[NXcanSAS v1.1\|NXcanSAS 1.1]] in development

	[[User:Butler\|Paul Butler]]: 2019-07 : Lots of discussion at [[canSAS-XI]] about metadata. Discussion and actions from the meeting are available [[canSAS-XI/DataFormats]]		[[User:Butler\|Paul Butler]]: 2019-07 : Lots of discussion at [[canSAS-XI]] about metadata. Discussion and actions from the meeting are available [[canSAS-XI/DataFormats]]

Ajj: /* Members */

2024-10-25T11:41:43Z

Members

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	* Andrew Nelson (ANSTO)		* Andrew Nelson (ANSTO)
	* Jan Ilavsky (APS)		* Jan Ilavsky (APS)
			* Lisa Debeer-Schmitt (ORNL)

	= Timeline =		= Timeline =

Smk: /* 1D: cansas1d:1.1 */

2024-09-30T12:59:44Z

1D: cansas1d:1.1

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	* '''CanSAS 2012 Discussion''': 2012-07-31 [[2012_Data_Discussion\|Data formats discussion page]]		* '''CanSAS 2012 Discussion''': 2012-07-31 [[2012_Data_Discussion\|Data formats discussion page]]

	=== 1D: cansas1d~~:1.1~~ ===		=== 1D: cansas1d ===

	standard for 1-D reduced small-angle scattering data, using XML (text)		standard for 1-D reduced small-angle scattering data, using XML (text)

Smk: /* nD: NXcanSAS */

2024-09-30T12:58:31Z

nD: NXcanSAS

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	* '''Announced''': 2017-06-06 (at [[canSAS-IX]])		* '''Announced''': 2017-06-06 (at [[canSAS-IX]])
	* '''Documentation''': [http://download.nexusformat.org/doc/html/classes/applications/NXcanSAS.html http://download.nexusformat.org/doc/html/classes/applications/NXcanSAS.html]		* '''Documentation''': [http://download.nexusformat.org/doc/html/classes/applications/NXcanSAS.html http://download.nexusformat.org/doc/html/classes/applications/NXcanSAS.html]
	* '''Examples''': [https://github.com/canSAS-org/NXcanSAS_examples https://github.com/canSAS-org/NXcanSAS_examples]		* '''Examples''': [https://github.com/canSAS-org/NXcanSAS_examples https://github.com/canSAS-org/NXcanSAS_examples]
	* '''GitHub (NeXus)''': [https://github.com/nexusformat/definitions https://github.com/nexusformat/definitions]		* '''GitHub (NeXus)''': [https://github.com/nexusformat/definitions https://github.com/nexusformat/definitions]
	* '''~~poster~~''': [[Media:2017-05-09_NXcanSAS_2D_format.pdf\|PDF]]		* '''Poster''': [[Media:2017-05-09_NXcanSAS_2D_format.pdf\|PDF]]
			* '''CanSAS 2012 Discussion''': 2012-07-31 [[2012_Data_Discussion\|Data formats discussion page]]

	=== 1D: cansas1d:1.1 ===		=== 1D: cansas1d:1.1 ===

Smk: /* Latest News */

2024-09-30T12:49:56Z

Smk: /* Timeline */

2024-09-30T12:49:04Z

Timeline

← Older revision		Revision as of 12:49, 30 September 2024
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	* 2007-12-31 agree on v1.0 format		* 2007-12-31 agree on v1.0 format
	* 2008-01-01 start implementing v1 at facilities		* 2008-01-01 start implementing v1 at facilities
	* 2008-06 representative sampling of data available for inter-facility comparison		* 2008-06 representative sampling of data available for inter-facility comparison
	* 2008-11-3 presentation of results at NOBUGS2008 meeting ([http://www.nbi.ansto.gov.au/nobugs2008 http://www.nbi.ansto.gov.au/nobugs2008])		* 2008-11-3 presentation of results at NOBUGS2008 meeting ([http://www.nbi.ansto.gov.au/nobugs2008 http://www.nbi.ansto.gov.au/nobugs2008])
	* 2009-05-12 tagged SVN changeset 67 as v1.0 since it has been unmodified since January		* 2009-05-12 tagged SVN changeset 67 as v1.0 since it has been unmodified since January
	* 2009-09-17 ~~Agreed~~ that v1.1 revision should be forthcoming with corrections/additions to be identified in TRAC tickets		* 2009-09-17 agreed that v1.1 revision should be forthcoming with corrections/additions to be identified in TRAC tickets
			* 2017-01 NXcanSAS 1.0 released
			* 2015-12 multidim moved to github a while ago

	= Status =		= Status =

Smk: /* Latest News */

2024-09-30T12:47:14Z

← Older revision		Revision as of 09:23, 2 April 2025
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	= Latest News =		= Latest News =

			[[User:Ajj\|Andrew Jackson]]: 2025-04 : [[PolSANSNXcanSASWorkshop\|2nd Workshop on supporting Polarised SANS data]] in [[NXcanSAS v1.1\|NXcanSAS 1.1]] held at ESS on 2nd April.

	[[User:Smk\|Steve King]]: 2024-09 : Proposals for [[NXcanSAS v1.1\|NXcanSAS 1.1]] in development		[[User:Smk\|Steve King]]: 2024-09 : Proposals for [[NXcanSAS v1.1\|NXcanSAS 1.1]] in development

← Older revision		Revision as of 12:49, 30 September 2024
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	[[User:Butler\|Paul Butler]]: 2019-07 : Lots of discussion at [[canSAS-XI]] about metadata. Discussion and actions from the meeting are available [[canSAS-XI/DataFormats]]		[[User:Butler\|Paul Butler]]: 2019-07 : Lots of discussion at [[canSAS-XI]] about metadata. Discussion and actions from the meeting are available [[canSAS-XI/DataFormats]]

	~~[[User:Ajj\|Andrew Jackson]]: 2012-07-31 : [[2012 Data Discussion\| canSAS 2012 Data Formats discussion page]]~~

	= Links =		= Links =

← Older revision		Revision as of 12:47, 30 September 2024
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	[[User:Butler\|Paul Butler]]: 2019-07 : Lots of discussion at [[canSAS-XI]] about metadata. Discussion and actions from the meeting are available [[canSAS-XI/DataFormats]]		[[User:Butler\|Paul Butler]]: 2019-07 : Lots of discussion at [[canSAS-XI]] about metadata. Discussion and actions from the meeting are available [[canSAS-XI/DataFormats]]

	~~[[User:Jemian\|Pete Jemian]]: 2017-01 : NXcanSAS 1.0 released~~

	~~[[User:Tobias Richter\|Tobias Richter]]: 2015-12 : Multidim moved to github a while ago~~

	[[User:Ajj\|Andrew Jackson]]: 2012-07-31 : [[2012 Data Discussion\| canSAS 2012 Data Formats discussion page]]		[[User:Ajj\|Andrew Jackson]]: 2012-07-31 : [[2012 Data Discussion\| canSAS 2012 Data Formats discussion page]]