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Surfaces, Microstructure and Fracture Group

B-SHeM Photograph

Within our group, we have a strong focus on instrument development.  Our unique instrumentation enables us to research physical regimes that cannot be studied anywhere else in the world.  Our B-SHeM system, shown in the photograph at the top of this page, was recently designed, constructed and comissioned within the group, building on the technque of Scanning Helium Microscopy (SHeM) we co-developed over the last decade.

Case studies of recent instrumentation projects are given below.

 

Scanning Helium Microscopy (SHeM)

SHeM SchematicSHeM is a new form of microscopy that has become one of the most promising developments in the field of damage-free high-resolution imaging.

The technique was conceived in Cambridge, then first developed as part of a collaboration with Newcastle University, Australia, resulting in our first 'A-SHeM' microscope.  Since then we have further developed all the key aspects of the technology, resulting in a more recent 'B-SHeM' instrument.  These are both are now in active use addressing scientific challenges.  We have recently launched a partnership with Ionoptika Ltd. to develop a commercial SHeM.

Full details of the instrumentation and recent publications are available on the Cambridge Atom Scattering Centre website.

 

[1] SM Lambrick et al., Appl. Phys. Lett. 116, 061601 (2020);
[2] M Bergin et al., Scientific Reports 10, 2053 (2020);
[3] M Barr et. al., Nature Communications 7, 10189 (2016).

 

 

 

Ultra high sensitivity helium detectors

SHeM SchematicWe build the world’s most sensitive helium atom detectors, to enable our experimental programmes.

 

[1] Bergin et al, Rev. Sci. Instrum. 92, 073305 (2021);
[2] Martens et al., NIMB 340, 85 (2014);
[3] Alderwick et al., Rev. Sci. Instrum. 79, 123301 (2008).

 

Latest news

Review Article in Nature Reviews Physics

12 October 2021

A short review article, Probing surface motion above ambient temperature with helium spin-echo spectroscopy , has just been published in Nature Reviews Physics by Dr Nadav Avidor.

SHeM commercialisation project launched with Ionoptika Ltd.

1 September 2021

We are pleased to announce the start of a Knowledge Transfer Partnership with Ionoptika Ltd. to commercialise our scanning helium microscope (SHeM) technology. For more information, contact the project lead, David Ward .

Undergraduate Summer School and Research Programme 2021

28 June 2021

Welcome to the 46 students who will be joining us for our undergraduate summer school and 8-10 week research projects in surface nano-physics and atom-surface scattering.