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The Institut Laue-Langevin (ILL) is the world's leading facility in neutron science and technology. It operates the most intense neutron source on earth in Grenoble in the south-east of France.

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Colloquia, seminars & talks

Picosecond lifetime measurements using Recoil Distance Doppler Shift method (an opportunity at FIPPS?)

General ILL Seminar organised by College III
Wednesday November 29, 2017, 11:00
Seminar room 7/8, ILL 1

Dr. Joa Ljungvall

CSNSM Orsay,

The atomic nucleus is a complex multi-body system where two fermion species interact via the in-medium nuclear force. Despite this simple pattern emerges, and excitation’s in nuclei can be described in the context of a nuclear shell-model or in macroscopic models where the nucleus is treated as a two-fluid system. Our understanding of the atomic nucleus is today at the "precision" level we are probing small terms in nuclear interaction. Because of this contemporary
experimental nuclear-structure physics is concentrated either on exotic nuclei or on observables more sensitive to details in the nuclear wave function -e.g. electromagnetic transition strengths.
A privileged method to measure lifetimes in the picosecond range is the Recoil Distance Doppler Shift method. Here the Doppler Shift of a  ray, together with the possibility of changing the velocity of the emitting nuclei as a function of time is, used to measure the lifetime of the -ray emitting state.
I will give a short introduction to the method and show some examples how the information given by such measurements helps to improve our understanding of the nucleus.
Finally I will give a personal view on the possibilities to perform such measurements at the FIPP Spectrometer, focusing mainly on technical challenges.

Tobias Jenke
(College III Secretary)

External visitors may ask for a site access to tellier(at)

Search for BSM physics at TeV scale by exploring the transverse polarization of electrons emitted in neutron decay – the BRAND project

General ILL Seminar Organised by College III
Monday, December 4, 2017, 11:00
Seminar room 7/8, ILL 1

Prof. Dr. Kazimierz Bodek

University in Krakow, 30-348 Krakow, Poland,

Neutron and nuclear beta decay correlation coefficients are linearly sensitive to the exotic scalar and tensor interactions that are not included in the Standard Model (SM). The proposed experiment will measure simultaneously 11 neutron correlation coefficients (a, A, B, D, H, L, N, R, S, U, V ) where 7 of them (H, L, N, R, S, U, V ) depend on the transverse electron polarization – a quantity which vanishes in the SM. The neutron decay correlation coefficients H, L, S, U, V were never attempted experimentally before. The expected impact of the proposed experiment is comparable to that of the spectrum shape measurements but offers completely different systematics and additional sensitivity to imaginary parts of the scalar and tensor couplings. In the talk, feasibility and challenges of the proposed techniques as well as timeline and milestones of the project will be discussed.    

Tobias Jenke
(College III Secretary)

External visitors may ask for a site access to tellier(at)


Innovation in the Chemical Industry

General ILL Seminar organised by College IX
Wednesday, December 6, 2017, 14h00
Seminar Room, 1rst Floor, ILL 4

Dr. Felix Müller

Vice President European Research Policy Innovation Networks, Evonik Industries AG, Rellinghauser Straße 1-11, 45128 Essen,

The Innovation Management has shifted substantially in the Chemical Industry in the last decade. Classic research in central labs is gone, interactivity is on the rise. Digital methods for enlarging the scientific base are in focus. Ideation and project management with external partners, industrial partners as well as universities and large research organizations up to crowd sourcing are used extensively, with dedicated IT tools. As an example diverse activities in this field currently done by Evonik Industries AG will be discussed and many examples of current results of our innovation work will be introduced.

I. Hoffmann
(College IX Secretary)

External visitors may ask for a site access to tellier(at)