Second WG Discussion: Difference between revisions
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== Notes | = SESANS Session Notes SAS2024 - Sun 2024-11-03 = | ||
=== Topic: Cross-calibration === | |||
* Following round-robin reference samples have been used so far for SESANS at several sources (according to Wim Bouwman): Flexi-Por, Papyex. These measurements have also been compared to SANS/USANS results from the same samples. | |||
* But: these kinds of samples have the disadvantage that they show artifacts when used for TOF-SESANS. | |||
* Also, the presented reference data had differences in peak-minima of measured reverence samples at different sources. The reason for this difference still has to be identified. | |||
* General consens: We need more sets of standard samples at all facilities | |||
=== Notes from the discussion round: === | |||
* What is needed: New standard samples with shorter length scales of around 50nm (but such gratings are difficult to make) | |||
* The question was raised if new round robin samples should be fabricated which can be handed from facility to facility. On the other hand, a good reference sample depends on each use-case - there is no perfect standard sample for several techniques/facilities. Instead, good existing standard samples (like the above mentioned and already measured Flexi-Por/Papyex) should be used. | |||
Latest revision as of 13:58, 12 March 2025
Notes from canSAS 2024 Second Working Group Discussion Session
Includes:
- Data Formats
- TOF SANS
- SESANS
- Tomograph
SESANS Session Notes SAS2024 - Sun 2024-11-03
Topic: Cross-calibration
- Following round-robin reference samples have been used so far for SESANS at several sources (according to Wim Bouwman): Flexi-Por, Papyex. These measurements have also been compared to SANS/USANS results from the same samples.
- But: these kinds of samples have the disadvantage that they show artifacts when used for TOF-SESANS.
- Also, the presented reference data had differences in peak-minima of measured reverence samples at different sources. The reason for this difference still has to be identified.
- General consens: We need more sets of standard samples at all facilities
Notes from the discussion round:
- What is needed: New standard samples with shorter length scales of around 50nm (but such gratings are difficult to make)
- The question was raised if new round robin samples should be fabricated which can be handed from facility to facility. On the other hand, a good reference sample depends on each use-case - there is no perfect standard sample for several techniques/facilities. Instead, good existing standard samples (like the above mentioned and already measured Flexi-Por/Papyex) should be used.
