Connection

Welcome: aims, structure, assessment

• Stephen Hall (LINXS)

Introduction to neutron imaging: basic concepts/definitions, interaction mechanisms, introduce different modalities (set the scene for the coming days: Polychromatic, monochromatic, wavelength resolved, steady state versus ToF,….)

• Robin Woracek (ESS)

Introduction to (neutron) tomography: acquisition to reconstruction including mathematical principals, with a focus on transmission (attenuation) imaging and including potential artefacts such as rings, beam hardening etc..

• Anders Kaestner (PSI)

Link to material: material.https://imaginglectures.github.io/Tomography4NI/

Introduction to assignment

• Stephen Hall (LINXS)
• Robin Woracek (ESS)

Beamtime proposal: see template

Preparation for tomography reconstruction tutorial – code installation, Q&A onlineetc.

• Anders Kaestner (PSI)

installation instruction video: https://youtu.be/OP_uPeUgN0M

Tutorial on tomographic reconstruction

• Anders Kaestner (PSI)

“Extreme” imaging (fast, large, high res.)

• Nikolay Kardjilov (Helmholtz Berlin)

Here is the link to the documentary (first 7 minutes) related to the papyrus unrolling: https://www.ardmediathek.de/video/w-wie-wissen/das-erste/Y3JpZDovL2Rhc2Vyc3RlLmRlL3cgd2llIHdpc3Nlbi9jMjQ3MWI4Yy0wZTk1LTRiZTItYjgwMC02NDdlYmJlOGM0MzU/ The ImageJ plugin together with the data from lens adjustment can be found here: https://nubes.helmholtz-berlin.de/s/k4Lgw9foQjnNPay

Neutron imaging beamlines and systems (past, present, future)

• Robin Woracek (ESS)

How to write a good beamtime proposal

• Robin Woracek (ESS)

Complementarity of x-ray and neutron imaging & dual modality

• Anders Kaestner (PSI)

Follow-up on reconstruction tutorial

Energy selective imaging 1 (steady state sources)

• Nikolay Kardjilov (Helmholtz Berlin)

For wavelength dependent neutron attenuation: - See slide 9 of "How to write a good beamtime proposal" - Download of nxs plotter: https://project.esss.dk/owncloud/index.php/s/u8orDDreG8UpHbf

Energy selective imaging 2 (ToF)

• Robin Woracek (ESS)

ToF Image analysis: introduction to tutorial and challenge

• Robin Woracek (ESS)

TOF Exercise (you can already watch the tutorials): Data: https://project.esss.dk/owncloud/index.php/s/KoTmUDZUB7VPMaa TOF tutorial PART 1: https://youtu.be/BXAygH3xLHE TOF tutorial PART 2: https://youtu.be/cUvai7pssy8

Scattering and magnetic contrast: Phase contrast, grating interferometry, SEMSANS, polarized imaging

• Nikolay Kardjilov (Helmholtz Berlin)

2D, 3D and 4D Image analysis and quantification

• Stephen Hall (LINXS)

Follow-up on ToF image analysis tutorial

• Robin Woracek (ESS)

Project presentations

• Stephen Hall (LINXS)
• Robin Woracek (ESS)

Each group should aim to provide feedback to the other groups on their proposals, identifying strong/weak points in the - presentation - scientific background and justification - justification of neutron imaging method and beamline - description of experiment - discussion on what will be the outcome of the experiment (including how the data might be analysed) - over all rating of proposal (would it get beam time)

Summary and wrap-up

• Stephen Hall (LINXS)