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Home > Press > The Physics Department of King’s College, London, uses the Quorum Q150T ES to gold coat samples for enhanced scanning electron microscopy imaging

Dr Ben Blackburn of the Physics Department, King’s College London, uses the Quorum Q150T ES coater to prepare samples for analysis by SEM.
Dr Ben Blackburn of the Physics Department, King’s College London, uses the Quorum Q150T ES coater to prepare samples for analysis by SEM.

Abstract:
Quorum Technologies, market and technology leaders in electron microscopy coating and cryogenic preparation products, talk about how the Physics Department at King's College, London, chose the Q150T ES coater to deposit gold on samples for high resolution imaging using scanning electron microscopy.

The Physics Department of King’s College, London, uses the Quorum Q150T ES to gold coat samples for enhanced scanning electron microscopy imaging

Laughton, UK | Posted on August 2nd, 2017

William (Bill) Luckhurst heads up the operation and maintenance of the instrumentation facilities of the Physics Department of King’s College, London. With nearly forty years’ experience, Bill has seen the development of many techniques including scanning electron microscopy (SEM), atomic force microscopy (AFM), thin film thermal evaporation and vacuum design & practice. These days, Bill and his colleague, Dr Ben Blackburn, are responsible for managing the use of the instrumentation, providing training and induction to new users. Bill also has many PhD students using the equipment as well as other University of London and private, industrial users. With high running costs, the laboratories have to be kept running 24/7 to earn their keep and to support the growing research activities such as the Physics Department Photonics research group.

Having modern, easy-to-use and reliable equipment are some of Bill's criteria when he goes out to source new instrumentation. With a wide range of samples to analyse with imaging requirements from the micron to the nanometre level, a reproducible and solid coating system is essential. As Professor Al-Jamal Khuloud from the Pharmacy Department has said “coating our samples, submicron nanoparticles of a variety of shapes and dimensions, with thin layers of gold prior to SEM imaging not only enhances image contract, it conducts charge away from the surface.” Such requirements were important factors when Bill came to purchase a new coater around 18 months ago.

Bill takes up the story: “Procurement rules insist on three quotations and then a justification case for the purchase. When I requested a demonstration, Quorum were by far the most responsive of manufacturers. Other vendors were either not really interested or their products turned out to be prohibitively expensive. The QT150T ES was exactly what I needed at a price that I could afford in a package that looked good, was easy to use and maintain. The sample stages supplied with the instrument allow a diverse range of samples to be coated; the rotating planetary sample holder is particularly useful as it allows the even coating of irregular shaped samples. The user instruction and programming screen is a wheeze to use; tuition times for new users are around ten minutes and everyone is very happy. Additionally some researchers use the coater for other applications where they want a thin coherent film up to say 50 nm produced by a cold process where conventional thermal evaporation could damage a delicate surface.”

The Q150T ES coater is a combined system with both sputtering and carbon coating ability. The deposition heads can be swapped in seconds and the intelligent system logic automatically recognises which head is in place and displays the appropriate operating settings. To obtain full details of the Q150T ES coating system and other products available from Quorum Technologies, please visit www.quorumtech.com.

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About Quorum Technologies Limited
Quorum Technologies are market and technology leaders in electron microscopy (EM) coating and cryogenic preparation providing high performance sample preparation instrumentation worldwide.

A key feature of Quorum’s success is by listening to the industry and being able to respond to requests and requirements to develop new instruments and techniques. This resulted in the introduction of the market-leading Q Series of vacuum coaters and PP3010T cryo preparation system for SEM and FIB/SEM – genuine ground-up redesigns that have earned Quorum the respect of the industry and truly set the standard within the specimen preparation field.

The company was founded in 2001 after the acquisition of the long-established Polaron brand and its range of EM products from Thermo Instruments. In 2005, they acquired the Emitech company, allowing Quorum to extend their product range and further grow the business.

Further impetus and investment came with the acquisition of Quorum by Judges Scientific plc and a move to purpose-built factory and offices close to the South Downs National Park at Laughton, East Sussex in the South East of England.

In 2014 Quorum were proud winners of the Queen’s Award for Enterprise for International Trade.

For more information, please click here

Contacts:
Quorum Technologies Limited
Judges House
Lewes Road
Laughton
East Sussex BN8 6BN, UK
T +44 (0)13523 810981
www.quorumtech.com


Talking Science Limited
39 de Bohun Court
Saffron Walden
Essex CB10 2BA UK
T +44(0)1799 521881
M +44(0)7843 012997
www.talking-science.com

Copyright © Quorum Technologies Limited

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