Scope of school
There is a lot of progress in the field of polarized neutrons. In particular we witness numerous worldwide developments in high through put areas like reflectometry and SANS. The leadership for polarized neutrons is undoubtedly European. However, both the US and Japan are devoting a lot of effort to these techniques. Polarized neutrons have the reputation of being intrinsically difficult to use. It is certainly true that the know-how is mainly in the hands of specialists, working in neutron centers. It will be of prime interest to all neutron centers to make polarized neutrons more popular with the wider scientific community. The demystification of polarized neutrons is exactly the aim of this school.

The school is intended for students (PHD, post-doc), young researchers and university teachers. Polarized neutrons are not presented as a means in themselves but as a powerful tool to answer a wide range of interesting scientific questions. The theoretical concepts are put into a practical context, i.e. the student is really taught how to prepare, run and analyze an experiments in order to obtain an answer to scientific questions. We hope to be able to attract both researchers already working with neutrons in the fields of materials and life sciences but unfamiliar with polarized neutrons as well as young scientists from completely different horizons to reinforce a community at a time where the field is progressing rapidly.

Co-organizers:
Eric Ressouche, (ILL)
phone +33 438 78 44 01
email: ressouche@drfmc.ceng.cea.fr
Nolwenn KERNAVANOIS (ILL)
Jean-Louis SOUBEYROUX (ILL)

support
Nmi3 support this school. Financing travel and living expenses of school participants. (Preferent students and Post-Docs). The grant recipients have to hold a European nationality distinct from the one of the country hosting the event.

Website of the Workshop http://www.sfn.asso.fr/JDN/JDN13/

Preliminary Programme
1) The basics
• Polarized neutrons : for doing what ?
• The mathematical basis. The spin of the neutron. Definition of the polarization.

2) Classical polarized beam method - Form factor and magnetization distribution.
• Applications.
• Programs to analyse the data (practicals)

3) Polarization analysis
• Longitudinal analys : separation coherent/incoherent, nuclear/magnetic.
• Spherical analysis : CRYOPAD. Magnetic structures determination, antiferromagnetic form factors...

4) Reflectometry.
• The different aspects : specular/ off specular
• Applications.

5) Inelastic scattering.
• Polarisation analysis (longitudinal an 3D) applied to excitations.
• Spin-echo

6) Polarised neutrons for life sciences.
• Biology

7) Instrumentation (todays in reactors and futur for spallation sources)

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