Design characteristics and first experience concerning the new high-resolution powder diffractometer for thermal neutrons at the Swiss spallation neutron source SINQ are summarized. It is based on a ...linear position-sensitive
3
He
detector with 1600 wires and angular separation of 0.1°, permitting also real-time experiments.
The single-crystal diffractometer TriCS at the Swiss Continuous Spallation Source (SINQ) is presently in the commissioning phase. A two-dimensional wire detector produced by EMBL was delivered in ...March 1999. The instrument is presently tested with a single detector. First measurements on magnetic structures have been performed. The instrument is remotely controlled using JAVA-based software and a UNIX DEC-α host computer.
We report on a new facility for neutron reflectometry situated at the end position of a cold neutron guide at the Swiss Spallation Neutron Source SINQ. The instrument is a flexible apparatus, ...adaptable to the needs of the user's individual experiment. Principally designed to operate in the time-of-flight mode it is also capable to exploit the fact that SINQ is a continuous source because PSI's developments in the field of thin film multilayers are fruitfully applied. By means of multilayer monochromators it can be converted into a constant wavelength reflectometer. Polarized neutron reflectometry on AMOR takes advantage of remanent FeCo/Ti:N supermirrors and multilayers which can be operated in a way that no spin flippers are needed. The time and angular contributions to the resolution in momentum transfer are separately determinable in TOF mode. The total length of the instrument is adjustable in order to optimize resolution together with the illumination of the sample's surface. Large sample environments can be placed on the sample table that is actively isolated against vibrations. Single detectors and an EMBL
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area detector can be chosen, alternatively. The instrument concept as well as parameters of its components are presented.
The spallation neutron source SINQ at Villigen, Switzerland, is a continuous source with a flux of about 10
14 n/s cm
2. Nine neutron-scattering instruments will come into operation within the first ...year, seven of them are situated at neutron guides. The electronics and software required for the various instruments are standardized as far as possible. The SINQ instrument control software (SICS) is implemented as a client server system. The SICS server is implemented in ANSI-C on a digital Unix platform and uses only Posix compliant system calls for maximum portability. Clients provide the user interface, which may be either of the traditional command line type or a more modern graphical user interface. Communication with the front-end electronics is via the TCP/IP internet protocol. Measured data are stored in the NeXus format, a common data exchange format for neutron scattering and X-ray instruments.
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