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Welcome to the

Institut Laue-Langevin

The world leader in neutron science and technology

English French Deutsch 

The Institut Laue-Langevin is an international research centre based in Grenoble, France.

At the leading edge of neutron science and technology, it operates one of the most intense neutron sources in the world. [more]

To know more about ILL, see the FAQ

Site entrance

The site entrance is now located at 71 avenue des Martyrs. See interactive map of the site below, and more information here.

ILL general presentation film

ILL virtual tour

A virtual tour of the ILL is available.

For a real visit to the ILL, and to meet our scientists, please see here.

The epn science campus



The European Photon and Neutron science campus in Grenoble hosts ILL, ESRF, EMBL and UVHCI.

GIANT innovation campus

ILL is one of the founders of the Grenoble 'GIANT' innovation campus. See more information on

Call for proposals

Web submission is open on the User Club.

The deadline for proposal submission is Tuesday 9 February, midnight (CET).

Proposals will be assessed  by the Panel Meetings on 12-13 April 2016. More information here.

New brochure on 'Neutrons and energy'

The main challenge for the COP21 conference in Paris next December is the transition to a lower-carbon economy.
To combat global warming we need more efficient means of harnessing natural energy. The solutions often involve advanced materials with complex structures - and to understand these we need neutrons and neutron technology.

You can find examples of the ILL's work in this domain in its recently published "Neutrons and energy" brochure.

Colloquia at ILL

The ILL runs a colloquium series at which prestigious speakers are asked to give exciting and accessible talks of general interest to scientists having a wide range of backgrounds. In the past, ILL colloquia have included the Astronomer Royal, the editor of Nature or Hélène Langevin-Joliot.

More information on past and future colloquia here.

See also list of forthcoming ILL seminars.

European collaborations

  • ILL is a member of EIROforum, a collaboration between eight European intergovernmental scientific research organisations.
  • ILL coordinates the NMI3 network, the Integrated Infrastructure Initiative for Neutron Scattering and Muon Spectroscopy
  • ILL is a member of CRISP, the Cluster of Research Infrastructures for Synergies in Physics

TSN report

The TSN 2014 report is now available (in French).