Types of beamtime access

There are different ways of submitting a proposal to the ILL, as summarised in the following table.

EXTERNAL PEER REVIEW

TYPE	APPLIES TO	WHEN	WHO FOR	RESPONSE TIME
Standard	All experiments, all instruments, all conditions. Next deadline Monday 16 February 2026, at 23.59 (CET time).	Deadlines twice a year, spring and autumn	All users from member countries	4 to 8 months after deadline
BAGs	College 8 proposals on D22	Deadlines twice a year, spring and autumn	All users from member countries	4 to 8 months after deadline
CRG	All experiments, CRG instruments, all conditions	Depends on CRG policy	All users from CRG collaboration	Depends on CRG policy
D-Lab	Access to the ILL sample deuteration lab	All year	All users from member countries	ASAP

INTERNAL PEER REVIEW

TYPE	APPLIES TO	WHEN	WHO FOR	RESPONSE TIME
DDT	Urgent experiments, hot topics, excellent science from non-member countries, all instruments, all conditions	All year	All users	ASAP quick access
EASY	A small amount of beamtime, not a full experiment; must be very simple measurements, all instruments, limited number of configurations	All year	All users from member countries	From one to a few weeks quick access
LTP	All instruments, for projects over several cycles if it can be demonstrated that they bring extra resources or capabilities that are of benefit to all users	Once a year, autumn round	All users from member countries	4 to 8 months after deadline
EBTA	PF1, PF2 and FIPPS, for projects over several cycles if the project fits within the current EBTA framework	Once a year, spring round	All users	4 to 8 months after deadline

NO PEER REVIEW

TYPE	APPLIES TO	WHEN	WHO FOR	RESPONSE TIME
TEST	Test of sample, equipment, instrument configuration, all instruments	All year	All users from member countries	Usually on same day quick access
INDU	Proprietary beamtime	All year	Contact the Industrial Liaison Office	ASAP quick access
INTER	Internal beamtime, available for ILL scientists to do their own research. Must have an ILL scientist involved but can also have external people as co-proposers (form available on the intranet).	All year	Ill scientists (possible collaboration with users from member countries	Anytime during reactor cycles

TransNational Access via European projects

ReMade@ARI: A hub for materials research towards a European circular economy

ReMade@ARI provides scientists exploring the properties and structures of recyclable materials with coordinated access to more than 50 European analytical research infrastructures.
Users can now submit proposals for access to these infrastructures via a unified procedure on a dedicated online portal.
Applicants are welcome to submit a pre-proposal to receive support from the scientific network of ReMade@ARI to develop their idea into a full proposal.