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The instruments of the Large Scale Structures (LSS) group of the Institut Laue-Langevin are all dedicated to measuring structures on the scale of 1 to several 100 of nanometers. A vast range of science is covered: from magnetism to polymers and colloids to biological structure, in solution, in the solid state or in very thin films.

World Directory of SANS Instruments available for outside usersFounded by Konrad IBEL Maintained by Roland MAY Since 2007 maintained by Ralf SCHWEINS
Special thanks go to Adrian Rennie for his help on getting updated information! Lucas Heights (updated: August 24th, 2009)
Deadlines for the submission of proposals:2 rounds, one in April and on in September each year
In many ways our most important beam instrument at OPAL will be the QUOKKA small-angle scattering instrument. It is the largest (40-m long after the guide bunker) and most expensive ($4.5M + IT and Electrical Engineering), and was a major driver for getting the high-performance cold source into OPAL. It will have the highest throughput of users, and will cover the broadest range of scientific areas. Small-angle scattering is a powerful technique for looking at sizes and structures of objects on the nanoscale (1-10nm), like polymer molecules, biological molecules, defect structures in metals and ceramics, pores in rocks, magnetic clusters, magnetic flux lines in type-II superconductors and so on. ANSTO will have both X-ray and neutron small-angle scattering adjacent to each other, and the advantage of neutrons is primarily for soft matter where the contrast-variation method (replacing hydrogen with deuterium) can be used. In addition, it is useful for magnetic problems and ones in which large samples must be used. In many ways, small-angle scattering is complementary to electron microscopy while direct imaging is the domain of electron microscopy, SAXS and SANS can provide particle sizes, shapes and distributions averaged over a complete macroscopic sample. Small-angle scattering is rarely able to solve a problem on its own, and is typically used in conjunction with a number of other techniques. SANS was crucial in showing that polymer molecules are self-avoiding random walks (Flory's prediction - Nobel Prize in Chemistry, 1974), and that Type-II superconductors allow magnetic flux to penetrate, forming a lattice of magnetic vortices (Abrikosov's prediction - Nobel Prize in Physics, 2003). Other major achievements have been understanding viscosity modifiers in lubricants, solving the coarse structure of the ribosome, understanding the nature and role of particulate additives to tyres, and the porosity of sedimentary rocks in oil and gas reservoirs. Our goal is to have an instrument very similar in the spirit to the 40-metre D22 instrument at Institut Laue Langevin in Grenoble, France and the 30-metre instruments on NG3 and NG7 at the National Institute for Standards and Technology in Gaithersburg in the USA.
bragg-user-office(at)ansto.gov.au National Nuclear Energy Agency of Indonesia
The G. A. Siwabessy research reactor is a light-water open-pool type reactor that uses materials testing reactor (MTR) type fuel element of U3Si2Al MTR with U-235 low enrichment (19.75%). The reactor, whose nominal thermal power is 30 MW, will have a thermal neutron flux as high as 2.5 x 1014 n cm2 sec-1 at the center irradiation position in the core. The 36 meter BATAN SANS spectrometer (SMARTer) is installed at the end of a 49-meter long neutron guide and situated in the neutron guide hall. The neutron beam is monochromatized by a mechanical velocity selector with 11 ? 19 % wavelength resolution, the incident neutron wavelength is 2.74 - 5.66 Å. The 2-dimensional position sensitive detector has a sensitive area of 60 x 60 cm2 that is divided into 128 x 128 detection elements. SMARTer covers the Q -range of 0.002 < Q (Å-1) < 0.6. A detailed instrument description including measured samples is available in the SMARTer web page. Berlin (updated: September 08th, 2009)
http://www.helmholtz-berlin.de/userservice
Deadlines for the submission of proposals: 1 March and 1 September
Proposal deadlines: end of May and end of October.The 10 MW Budapest Research Reactor, equipped with a liquid H2 cold source, supplies a neutron flux at the sample position of 5 x 105 cm-2s -1 (λ = 4 Å; Δλ/λ = 20 %). The SANS instrument is equipped with a BF3 filled multidetector of 64 x 64 cm2 area, pixel size 1 x 1 cm2. The momentum transfer range is 0.004 < Q/Å-1 < 4.5. Proposers are requested to contact the scientists in charge of the instruments.
BNC is supported by the EU NMI-3 Access Program.
Instrument group homepage: http://www.kfki.hu/~sans European Spallation Source (ESS), Lund, Sweden
The site decisison for building the European Spallation Source has been taken. The ESS will be built in Lund, Sweden. Curretn General Director of the ESS is Colin Carlile, The Science Director is Christian Vettier. The ESS design update phase shall be finished in 2012, followed by the construction phase (2013-2018). Garching (updated: November 24th, 2003)
The 20 MW reactor FRM-II supplies an unperturbed thermal neutron flux of up to 8 x 1014 cm-2s-1, it is equipped with a cold source.
The new instrument SANS-1 with a collimation length 20 m and a sample-to-detector distance 20 m will be installed at beamline 4a. The intended parameters include a neutron cross section of 50 mm x 50 mm, wavelength resolution of Δλ/λ = 10 % and 1m x 1m detector. As an option a chopper system is planned. Typical applications of the new SANS-1 instrument will be: alloys, conformation of polymers, vesicles, magnetic and non-magnetic thin films, magnetic structures in nanocrystalline bulk material, chiral strucutres etc. Further details are communicated by Ralph Gilles, TU München, phone: +49 89-289-14665, fax: +49 89-289-14666, Email: ralph.gilles(at)frm2.tum.de
References: Jülich (updated: August 26th, 2009)
The Jülich Reactor has been shut down, the instruments KWS-1, KWS-2, KWS-3 have been transfered to the Munich Reactor FRMII and are currently rebuilt. KWS-2 started user operation recently. The newly founded Jülich Center for Neutron Science JCNS regroups the Jülich neutron activities worldwide.
Geesthacht (updated: November 7th, 2003)
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Institutt for energiteknikk, P.O. Box 40, N-2007 Kjeller, Norway |
An upgraded SANS instrument has recently been commissioned at the 2 MW IFE reactor. The instrument is installed on an LH2-filled cold moderator, and is equipped with a velocity selector (Dornier), providing wavelengths in the range of 4.5 to approx. 10 Å. Fast neutrons (below 4 Å) and gamma radiation is removed by means of Be- and Bi- filters. The detector is a circular (58 cm diameter) 3He-filled Risø-type detector that is translated inside a 3.5 m long shielded tank. The sample is mounted on a rotatable 7-position thermally controlled stage located inside a steel chamber. The chamber can be evacuated in order to reduce air scattering, and also for working with air sensitive samples. The Q-range for this instrument is 0.008-0.32 Å-1. Beamtime is allocated on a collaborative basis. Annual reactor shut-downs are from first week of July through the first week of August, Christmas, New Year and Easter.
Grenoble (updated: Julyl 28th, 2010)
Institut Max von Laue - Paul Langevin, |
Deadlines for the submission of proposals: around August 31st and February 15th.
The 57 MW High Flux Reactor supplies a thermal neutron flux of 1.3 x 1015 cm-2s-1; it is equipped with two cold sources. The reactor is operated in approx. 4.5 cycles of 50 days per year. - Instrument D11 (0.0006 < Q/Å-1 < 0.3) with multidetector of 4K elements of 10 x 10 mm2 cross section and up to 36.7 m secondary flight path. - Instrument D16 (0.02< Q/Å-1 < 2) with a wavelength resolution of about 0.01. - Instrument D22 (0.001 < Q/Å-1 < 1) with multidetector of 16K elements of 7.5 mm x 7.5 mm cross section. - Main research interests are: polymers, colloids and microemulsions ( PL, RS, IG, LP ); biological structures ( PC); biological membranes, biopolymers ( BD, IG ); magnetic structures ( CD, RC ). - Proposers from non-member countries must seek collaboration with member countries (Germany, Great Britain, Italy, France, Russia, Spain, Switzerland, Tchech Republic, Austria). Guides: "A Computing Guide for Small-Angle Scattering Experiments", by R.E. Gosh, S.U. Egelhaaf and A.R. Rennie, ILL98GH14T, September 1998. "Guide to Neutron Research Facilities at the ILL", ed. H.G. Büttner, E. Lelièvre-Berna, F. Pinet, December 1997.
General information: Giovanna Cicognani, Scientific Co-ordination Office; Phone: +33 4 76207179, Email: cico(at)ill.fr, sco(at)ill.fr
Argonne (updated: August 26th, 2009)
Intense Pulsed Neutron Source, |
IPNS has closed!
Chilton (updated: December 11th, 2009)
ISIS Facility |
Deadlines for the submission of proposals: April 16th and October 16th
General information available online or from the ISIS User Office , Phone: +44 1235 44 5592 (Answerphone), Fax: +44 1235 44 5103, E‑mail: isisuo(at)stfc.ac.uk. Online proposal form and submission system. SANS Xpress Access available (contact Sarah Rogers). SANS Commercial Access available (contact Stephen King).
Pulsed neutron source with 2 target stations. TOF-SANS instrument LOQ (on TS1) with two fixed area detectors: time-averaged flux at sample: 3x105 cm-2s-1; wavelength range: 2.2 < λ/Å < 10; range of momentum transfers: 0.006 < Q/Å-1 < 0.25 with low-angle detector; high-angle detector bank at 0.5 m from the sample extends this range to Q/Å-1 < 1.4 in one single setting. Wide range of sample environment available including sample changer, pressure cell, magnet and CSR/CSS rheometer. Please note: maximum magnetic field possible is 2T. Stop-flow apparatus in development (please enquire).
New TOF-SANS instrument SANS2D (on TS2) with two moving area detectors (contact Richard Heenan): time-averaged flux at sample: at least 1x106 cm-2s-1; wavelength range: 1 < λ/Å < 14; range of momentum transfers: 0.002 < Q/Å-1 < 3. Commencing commissioning experiments November 2009. Limited sample environment currently available, but includes 40-position sample changer. Pressure cell, rheometer, 3D magnetic fields >5T, and stop-flow apparatus will all be available in the near future.
Tokai (updated: November 12th, 2003)
Japan Atomic Energy Research Institute, |
The 20 MW reactor JRR-3M supplies a thermal neutron flux of 2 x 1014 cm-2s-1; it is equipped with a cold source. It operates in seven cycles a year, each of which consists of four week continuous operation. Instruments: SANS-J (0.001 < Q/Å-1 < 0.6) with multidetector of 16 K elements of 5 mm x 5 mm cross section and up to 10 m secondary flight path; SANS-U (0.0005 < Q/Å-1 < 0.5; Fax: +81 29 283 3922) with multidetector of 16K elements of 5 mm x 5 mm cross section and up to 16 m secondary flight path. General information: Yukio Morii; Phone: +81 29 284 3816.
Dubna (updated: December 9th, 1999)
Joint Institute for Nuclear Research, |
The pulsed reactor IBR-2 has an average thermal capacity of 2 MW; the peak power is 1500 MW at a pulse repetition rate of 5 Hz. The halfwidth of the pulse is 215 µs and the useful duty time per pulse is 122 ms. The instrument YuMO (named in honour of Yurii M. Ostanevich) is located on the beamline 4 of the reactor. The useful wavelength range is 0.7 < λ/Å < 8, the range of momentum transfers is 0.007 < Q/Å-1 < 0.5. The time averaged neutron flux at the sample is up to 4 x 10 7 cm-2s-1. The present experimental program comprises: membrane structure (especially as influenced by detergents); micelle to vesicle transitions and micellar structures under high pressure; ribosomes; block co-polymers. General information:
1) The chairman of the user committee, László Cser (P.O. Box 49, H-1525 Budapest); Phone: +36 1 395 9220; Fax: +36 1 395 9165, Email: Cser(at)sunserv.kfki.hu
2) The User Policy Secretary, V. Sikolenko, Email: Sikolen(at)nf.jinr.ru
For information about instruments, user policy and proposal submission see also URL.
Taejon (updated: July 23rd, 2001)
Korea Atomic Energy Research Institute |
The 30 MW High-flux Advanced Neutron Application Reactor (HANARO) supplies a thermal neutron flux of up to 5 x 1014 cm-2s-1. The SANS instrument has been installed at the CN beam port (without cold neutron source) which is equipped with a liquid nitrogen cooled single crystal bismuth and polycrystalline beryllium gamma ray/fast neutron filte. The neutron beam is monochromatized by a high speed velocity selector with 10 % wavelength resolution, the incident neutron wavelength is 4 < λ/Å < 10. The two dimensional position sensitive detector has a sensitive area of 64.5 x 64.5 cm2 which is divided into 128 x 128 detection elements. The instrument covers the Q -range of 0.006 < Q/Å -1 < 0.6. General information: Chang-Hee Lee; Phone: +82 42 868 8443.
Tsukuba-shi
High Energy Accelerator Research Organization |
Two time-of-flight small/wide-angle neutron diffractometers are installed at the pulsed source KENS. Both instruments are viewing a solid methane cold moderator at 25 K. Instrument SWAN simultaneously covers a wide Q range (0.007 < Q/Å-1 < 12) using incident neutron wavelengths of 0.5 < λ/Å < 11. SWAN has 80 3He linear position-sensitive detectors (PSD) for the small-angle detector bank (0.25° < 2 θ < 10°), 48 conventional type 3He detectors for the medium-angle (12° < 2 θ < 20°) detector bank, and 96 PSDs for the high-angle (35° < 2 θ < 155°) detector bank.
Instrument WINK covers the Q range of 0.015 < Q/Å-1 < 20 using incident neutron wavelengths of 0.5 < λ/Å < 16. A wide solid-angle (1.5° < 2 θ < 145°) is covered by conventional type 3He detectors of 12.5 mm and 25 mm diameter.
Only SWAN is accepting users' proposals.
Saclay
Laboratoire Léon Brillouin, |
The 14 MW reactor supplies a thermal neutron flux of 3 x 1014 cm-2s-1; it is equipped with two cold sources and one hot source. Instrument PACE with multidetector of 30 rings, mostly for isotropic scattering. Instrument PAXE with multidetector of 4K elements. Instrument PAXY with multidetector of 16K elements. Instrument PAPOL with polarized beam at λ = 8 Å and multidetector of 16 K elements. User guide: "Equipements Experimentaux", ed. R. Kahn, January 1995.
General information: Scientific Secretary, Mme. Claude Rousse, Phone: +33 1 69 08 54 17; Fax: +33 1 69 08 82 61, Email: Rousse@drecam.cea.fr
Los Alamos
Manuel Lujan Jr. Neutron Scattering Center, |
Deadlines for the submission of proposals: March 2001, for the 2001 run; accepted year-around for exceptional cases. Future proposal submissions dates will be announced. See http://lansce.lanl.gov/userprogram/index.shtml for information.
Pulsed neutron source operated for five months starting July 2001; eight months operation is planned in 2002 starting in May. Instrument LQD was upgraded to a second generation TOF SANS instrument, including a zero time chopper, a frame definition chopper and a new collimation and gravity focussing system. A new partially decoupled cold moderator and an upgrade of the source to support a proton current of 100 µA make gives LQD the brightest cold pulsed available. A new high data rate detector will be installed for 2002. General information and proposal forms: http://lansce.lanl.gov/userprogram/index.shtml.
Contact information: LANSCE User Office, Mail Stop H831, Los Alamos, NM 87545, Phone: +1 505 665 1583, Fax: +1 505 667 8830, Email: lansce_users(at)lanl.gov
Columbia
University of Missouri Research Reactor, Reserach Park, Columbia, MO 65211, USA, Fax: +1 573 882 3443 |
The MURR SANS instrument has been removed from the reactor; it is in storage for an undetermined period with no immediate plans to reinstall it.
General information: James J. Rhyne, Phone: +1 573 882 6506, Fax: +1 573 882 4195, Email: rhynej(at)missouri.edu
Gaithersburg (updated: August 26th, 2009)
National Institute of Standards and Technology, |
Deadlines for the submission of proposals: calls for proposals issued twice per year; deadlines are posted at the above URL
NIST's research reactor operates at 20 MW, with a liquid hydrogen cold source. Two 30 m SANS instruments are in operation; one with a polarized beam option. The instruments have velocity selectors with wavelength resolution from 10 % to 30 % and multidetectors of 65 cm x 65 cm sensitive area and 0.5 cm x 0.5 cm pixel size. With conventional pinhole collimation, the Q-range of each instrument is 0.0015 Å-1 to 0.6 Å-1. The instruments are equipped with sets of biconcave lenses near the sample position to focus the beam, thereby improving the low-Q limit to about 0.0008 Å-1. Up to 50 % of the beam time on the instruments is available for visiting researchers who submit proposals. Main research interests are: mesoporous materials (CG and DH); polymers (BH and DH); biology (SK); metallurgy and ceramics (JB); colloids and microemulsions (SRK and LP). In the case of substantially equal proposals, preference will be given to US researchers. The NG3 SANS instrument is partially supported by the US National Science Foundation through its Center for High Resolution Neutron Scattering (CHRNS) that is part of the NIST Center for Neutron Research. General information and proposal forms are available on the Web at the above URL.
Oak Ridge
Oak Ridge National Laboratory, Neutron Scattering Facilities, P.O. Box 2008, Oak Ridge, TN 37831-6393 (last update: August 26th 2009) |
Deadlines for the submission of proposals: 3 copies should be submitted, at any time, to the User Facilities Coordinator (address see below)
The 85 MW High Flux Isotope Reactor (HFIR) supplies a thermal neutron flux of 1.5 x 1015 cm-2s-1. About 30 % to 50 % of beam time is allocated for user experiments. Over the period 2000-2005, a number of projects habe been undertaken at HFIR to improve neutron scattering capabilities. These include the installation of larger beam tubes and shutters, a high-performance hydrogen cold source, new beam lines and neutron scattering instrumentation, including two completely new SANS instruments: CG-2 and Bio-SANS. The upgrades commenced during an extended reactor outage which began in 2000, for the regularly scheduled replacement of the beryllium reflector. Proposal forms, guest assignement request forms and general information on the upgrades may be obtained by contacting the User Facility Coordinator, Solid State Division, Oak Ridge National Laboratory, P.O. Box 2008, Bldg. 3025, ORNL, Oak Ridge, TN 37831-6033, Phone: +1 865 576 1865, Fax: +1 865 574 4143, Email: carterjk(at)ornl.gov, or by contacting the Internet server.
Villigen
Paul Scherrer Institut, Abteilung Spallations-Neutronenquelle (ASQ) |
Details of the SINQ - call for proposals are available on the web page
The concept of the spallation neutron source SINQ is that of a steady state neutron source. The SANS instrument (0.0006 < Q/Å-1 < 1) is installed at the end of a 50 mm x 50 mm neutron guide facing a liquid-D2 cold moderator. The neutron wavelength is selected by a mechanical velocity selector at the entrance of an 18 m variable collimator; a detailed instrument description including measured values of neutron flux are communicated in the new WWW-page. The 2-dimensional multidetector has a sensitive area of 96 cm x 96 cm with 16 K elements of 7.5 mm x 7.5 mm cross section and up to 20 m secondary flight path. You can submit the proposals either as an Email attachment sinq(at)psi.ch or by standard means to Stefan Janssen, SINQ Scientific Coordination Office, Bldg. WHGA/147, Phone: +41 56 310 2087, Fax: +41 56 310 2939.
Roskilde
Risø National Laboratory |
The Risø reactor was permanently stopped in 2000, and can accordingly not offer SANS beamtime. However, the Risø SANS instrument is now installed at PSI. The allocation of beam time will be given jointly between Risø and PSI. Contact person: Kell Mortensen, Risø.
Konrad Ibel's coordinates: Konrad Ibel, Königinstraße 65, D-80539 München, Germany, Phone & Fax: +49 89 33066266, E-mail: K.Ibel@gmx.DE
Ultracold Neutron (UCN) Scattering Instruments: The origin of the study of UCN was essentally independent of the development of SANS instruments with cold neutrons. Nevertheless the two disciplines overlap, see the World Directory of Cold and Ultracold Neutron Sources (CNS-UCN)