Here finally a picture of the plastic magnet installed on the second bench of LARMOR, all scaled 1:4 of course.
We will now print another magnet assembly to complete the table. This way we can not only explain to others how we envision it to work but we can play with the cable routing and guide field construction on our desk.
The first magnet for the SESANS option is in! Although it is a 1:4 scaled plastic 3D printed version…
We have to bring the bits together and soon we will have a 3D model of the most complicated part of the instrument, the post sample arm, that will have all the translations and rotations of the magnets. The 3D model will help us determine how to design guide field, cable routing etc.
A visual update from ISIS. We can see the LARMOR blockhouse and its elevated floor structures appear next to the orange OffSpec blockhouse. One can clearly see the blue square block in the top image, which is the beam stop. The yellow structure is the crane that will cover the full instrument. The metal structure on the ground is the support for the elevated flour tiles that will cover all the cabeling.
These images were taken by and published with permission of Stephen Kill, STFC
We had a successful kick off meeting in Utrecht on the 2nd of October. It was a fruitful discussion about scientific requirements and technological solutions and led to the short report that can be downloaded here.
Presentations were given by Katia Pappas (TUdelft) about the project in general (download), Rob Dalgliesh (ISIS) about the construction of LARMOR at ISIS (download) and Jeroen Plomp (TUDelft) about the technical development of the spin-echo components in Delft (download) and how to move the LARMOR magnets around to make room for a SANS tank (movie)
After a short coffee break more science oriented presentations were given by the co proposers: Ilja Voets (TU Eindhoven) highlighted soft matter applications (download), Graeme Blake (Groningen University) gave his insights on the impact LARMOR may have on magnetism (download) and Jilt Sietsma (TUDelft) presented material science driven applications (download).
Finally the meeting was evaluated around a (modest) drink, under the watchful eye of the “bar cat” called Dirk.
The kick-off meeting for the NWO-Groot project on
Larmor will take place October 2nd. The venue is the Linteloozaal of the
Stadskasteel Oudaen, which is located very close to the central train station
of Utrecht. The tentative schedule of the meeting is
13:00 – 14:00 : Buffet Lunch
14:00 – 14:30 : Katia Pappas : the present state of LARMOR@TU Delft
14:30 – 15:00 : Robert Dalgliesh : LARMOR@ISIS
15:00 – 15:30 : Jeroen Plomp: LARMOR the technical part
15:30 – 15:45 : Coffee break
15:45 – 16:15 : Ilja Voets : Soft Matter
16:15 – 16:45 : Graeme Blake : Magnetism
16:45 – 17:15 : Jilt Sietsma : Materials
17:15 – 18:00 : wrap up and “borrel”
On the 6th of June 2012 we received great news, our proposal is granted by NWO!
Look at the NWO website…. http://www.nwo.nl
On 28 of February 2012 we were received an NWO committee for a site visit. The program consisted of presentations by Delft and ISIS and discussions together with our co-proposers including a tour though our facilities.
The presentations shown that day can be viewed by this link site visit presentation and Larmor labelling technique
We started the cooperation with Amsterdam Scientific Instrument (http://www.amscins.com/) in their neutron detector development. We aim for a high resolution detector that could be used for the MISANS option.
To illustrate the resolution of such a detector we have used it for imaging which is not in the LARMOR proposal but gives a good impression of the advantage of neutrons.
In the first improvised setup we have taken some pictures of items that can be found within reach of the neutron beam.
One can clearly see the advantage of neutrons. The sensitivity for Hydrogen is clearly demonstrated, the ink in the pen is more visible than the metal. Also the metal balls in the bearing are less visible than the plastic cup. This is a strong complementarity with x-rays who will show the reverse sensitivity.
We can now reach a resolution of 50 micron which can be improved significantly.
Prof. dr. Catherine Pappas, Faculty of Applied Sciences at Delft University
of Technology
Dr. ir. Ilja K. Voets, Department of Chemical
Engineering and Chemistry at Eindhoven
University of Technology
Prof. dr. Thomas T.M. Palstra, Zernike
Institute for Advanced Materials at University of Groningen
Prof. dr. ir. Jilt Sietsma, Faculty of Mechanical,
Maritime and Materials Engineering at Delft University
of Technology
In the “NWO groot” proposal we propose to build a new neutron scattering instrument, which will fully exploit the potential of Larmor Labelling. LARMOR, shown in the figure below, will be a multipurpose instrument based on Larmor Labelling techniques, where different types of measurements for structure and dynamics will be performed one after the other, while preserving the beam geometry and basic calibrations.
LARMOR will be a revolutionary neutron instrument for very high-resolution measurements of the position and mobility of atoms and molecules in the bulk. Dutch scientists will have fast and direct access to this unique neutron microscope that will be situated at ISIS the world-leading UK neutron source.
The switch between different modes will be relatively easy and fast.
Structure;
-SANS for structures of 0.1 nm to 100 nm with and without polarised neutrons
-SESANS for structures from 20 nm to 30 micron
-Larmor diffraction for diffraction with a resolution in the order of 1×10-6
Dynamics;
-TOFLAR
-NSE or NRSE
-MISANS
The parameter range covered by LARMOR is highlighted the following figures and is exactly the range, which would normally require a combination of several inelastic neutron scattering techniques.
In the areas of advanced materials, nanoscience and soft matter there is a distinct trend towards the study of complex, multi-component or multi-phase systems, the use of complex sample environments, and the investigation of non-equilibrium systems. The dimension scales of importance range from molecular to meso-scale. In these very topical scientific fields the very broad range of length and time scales involved necessitates the combination of experimental results obtained on several instruments and with different techniques. The multi-functionality of LARMOR provides the required large application range on a single instrument, and in combination with the high intensity neutron source of the Second Target Station of ISIS it will provide a platform for new, world-class science and applications.
