Description

ThALES - Three Axis instrument for Low Energy Spectrometry - is the replacement for IN14. It will implement the results of technical progress of the last two decades and will be fully optimized to address present scientific problems especially in the field of quantum magnetism and the physics of highly correlated electron systems.

Instrument team

BÖHM Martin	Scientific project leader	boehm(at)ill.fr	+33 (0)4 76 20 71 10
ROUX Stephane	Technical project leader	roux(at)ill.eu	+33 (0)4 76 20 7726

The project in short

After 20 years of successful operation the IN14 instrument, still world leading in its class, will be replaced within the Millenium-M1 phase by a new one. The main aims of this next generation cold neutron three-axis spectrometer are:

to increase the overall data collection rate (new neutron optics, multiplexing of the analyser–detector system)
to provide an efﬁcient and easy-to-use polarized neutron option,
to extend the incident neutron range towards higher energies bridging the gap with thermal instruments
to be able to use high-ﬁeld magnets—such as the currently available 15 T cryomagnet, without restrictions of the kinematical range.

References

Boehm M., Roux S., Hiess A., Kulda J., ThALES—towards the next generation cold neutron three-axis spectrometer, J. Mag. Mag. Mat. 310 (2007), p. e965-e967.
Boehm M., Hiess A., Roux S., Kulda J., Saroun J., ThALES - Three axis low energy spectroscopy at the Institut Laue- Langevin, Meas. Sci. Tech. 19 (2008), p.034024.
Boehm M., Hiess A., Kulda J., Monte Carlo simulations on the front-end of H5 guide system, ILL internal report ILL06BO06T (2006).