SANS I (technical data)
Small Angle Neutron Scattering Instrument at SINQ
J. Kohlbrecher and W. Wagner, The new SANS instrument at the Swiss spallation
source SINQ, J. Appl. Cryst. (2000).
V.K. Aswal, B. van den Brandt, P. Hautle, J. Kohlbrecher, J.A. Konter, A. Michels,
F.M. Piegsa, J. Stahn, S. Van Petegem, O. Zimmer, Characterisation of the polarised neutron beam at the small angle
scattering instrument SANS-I with a polarised proton target, Nucl. Instr. and Meth. A (2008), doi:10.1016/j.nima.2007.11.062
+41 56 310 3165
+41 56 310 5473
SANS instrument: Tel.:+41 56 310 3186
All publications that are produced based on results obtained at SINQ should be registered by the
aid of the Digital User Office DUO. Please follow the link
from the DUO main menu. It is expected that PSI staff members acting as local contacts
during your experiments at SINQ are mentioned as co-authors in any publication that results from
data obtained at SINQ.
In addition a certain acknowledgement statement is required from the
PSI directorate to ensure the finding of the papers in bibliographic databases, see below.
All publications based on SINQ data should contain the following text part:
'This work is based on experiments performed at the Swiss spallation neutron source SINQ,
Paul Scherrer Institute, Villigen, Switzerland.'
Due to the EU funding guidelines additionally to the above sentence those papers that are
based on results obtained from an experiment that was funded within th EU NMI3 access program
must contain the following sentence:
'This research project has been supported by the European Commission under the 7th Framework Programme
through the 'Research Infrastructures' action of the 'Capacities' Programme,
Contract No: CP-CSA_INFRA-2008-1.1.1 Number 226507-NMI3'.
| neutron guide
||cold neutron guide "1RNR16", curved, Ni-coated, 50x50 mm², l
> 0.42 nm
|| helical slot velocity selector
||0.45 nm < l < 4 nm,
resolution Dl / l
= 10 % (FWHM), variation by tilting possible
||6 x 10-3 nm-1 < Q < 10.5 nm-1
||2D ³He-detector with 128 x 128 elements of 7.5 x 7.5 mm²
||1 m, 1.4 m, 2 m, 3 m, 4.5 m, 6 m, 8 m, 11 m, 15 m 18 m, at 1m canonical
refractive optical lenses as neutron focussing device
Fig a1, Fig
a2, Fig a3, Fig
||1 to 20 m continuously
0 to 0.5 m
|| for wavelength between 0.47nm and 1nm the incident beam can be polarized
|| for stroboscopic (cyclic) experiments time resolutions down to a few
ms can be achieved
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To fullfil the large variety of experimental needs of the
users we have given high priority to a maximum versatility of the sample environment.
One standard sample set-up is a sample table with x,y,z,w
positioning plus (q)-goniometer. On this table various
sample environments can be mounted and positioned. For biological and chemical
samples we supply a sample changer for cuevettes and solid samples which can
be temperature controlled between +5°C and +150°C. We have realised
a high pressure cell for liquids up to 5 kbar. Furthermore, the sample table
has also be used to position special equipment of the users, like a cryomagnet
or a special holder for holographic gratings, rheometers, etc.
A second sample set-up is a vacuum chamber, which is directly connected to the
collimator and detector tubes, so that the SANS can be operated at about 5 x
10-2 mbar in a single vacuum system without windows. If better vacuum
down to 10-6 mbar or ambient pressure is needed at the sample position,
it is possible to insert thin aluminium or sapphire windows at the entrance
and exit of the chamber. The chamber is large enough to carry an electromagnet
and a sample changer with an optional heated sample position up to 750°C
All standard sample environments are fully remotely controlled by the SINQ instrument
control software SICS which enables the user to run automatic scans in his experiments.
| sample table
|| x-y-z-w positioning
plus an optional (q)-goniometer
, all axes are remote controled
| vacuum chamber
- operation at about 5 x 10-2 mbar in a single vacuum system
- at 10-6 mbar or ambient pressure it is possible to insert
thin aluminium or sapphire windows at the entrance and exit of the chamber
- chamber is large enough to carry an electromagnet
| sample holder for working in air
| high temperature precision
| temperature controlled sample changer
- electromagnet matches into vacuum chamber and can operate either
under vacuum condition or at ambient pressure
- flexible pole gap , pole gap width
between 30 mm and 145 mm
- pole diameter of 205 mm (also tapered pole caps available soon)
- H=1.1 Tesla perpendicular to the neutron beam
- sample holder for solid and liquid samples
- only one sample position
- for zero field measurements the permanent magnet can be taken out
of the holder
| activated samples
Users who whish using this setup have to contact the
instrument responsible J. Kohlbrecher (firstname.lastname@example.org) first,
before submitting their proposals to SINQ
| sample changer for vacuum
| high temperature furnace
T < 1500 C, sample can be translated and rotated inside the furnace
Fig a1, Fig
a2, Fig a3, Fig
a4, Fig a5
Users who are interested in using this furnace should
contact the instrument responsible J. Kohlbrecher (email@example.com),
before submitting their proposals to SINQ.
| 11 Tesla Cryomagnet
B < 11 Tesla, 1.5 K > T > 300 K
Fig b1, Fig
A collaboration with financial contributions from the Universities of
Birmingham, U.K., Zürich and Warwick, U.K., together with PSI and the
U.K. EPSRC, has taken delivery of a high horizontal-field cryomagnet,
specially designed for neutron scattering, particularly SANS.
Users who are interested in using this magnet for
their own experiments should contact either E.M. Forgan (E.M.Forgan@bham.ac.uk)
or J. Kohlbrecher (firstname.lastname@example.org), before submitting their
proposals to SINQ.
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| digital video camera
||versatile digital video camera which can be used to monitor the setup
during the measurements
| multifunctional data acquisition
- A PC + National instruments PCI-6014
basic multifunctional data acquisition card + BNC-2120
connector block is available at the sample environment.
200 kS/s, 16-Bit, 8 Analog Input (with connections for a thermocouples
and 4-wire resistors) , 2 analog outputs, 8 digital I/O lines, two 24-bit
counters, digital triggering.
- A overview of the available connections can be found here.
- On the PC a server program is running that can communicate with the
main SANS server (SICS). This allows for sending or receiving analogue
and digital signals in synchronisation with the SANS measurements. The
communication between the PC and the connector block is programmed in
a LabView (version 6.1) environment.
- Typical applications: sending trigger signals, read out temperature
or another user-pecific parameters, data-logging, ...
- Users who are interested in the feature should
contact instrument responsible to check whether their application is feasible.
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