Navigation Links
Nanotechnology makes supertelescopes much more sensitive
Date:2/3/2009

Nanotechnologist Chris Lodewijk has succeeded in significantly increasing the sensitivity of the new supertelescopes in Chile. He will receive his PhD on this topic at Delft University of Technology on Monday 2 February.

In Chile's Atacama desert, technicians and astronomers from around the world are currently working on the Atacama Large Millimeter Array (ALMA). This consists of 66 advanced telescopes which will be placed at an altitude of 5,000 metres and together will provide a more precise image of the universe. They are chiefly aimed at shedding light on the question of how stars and planets are formed. ALMA is expected to be taken into service in 2012 and is viewed by astronomers as a major step forward for their field.

Aluminium nitride

Dutch astronomers have been closely involved in developing ALMA in a fruitful collaboration with nanotechnologists. The latest contribution from the nano-world comes from PhD candidate Chris Lodewijk and technician Tony Zijlstra at Delft University of Technology's Kavli Institute of Nanoscience. They have succeeded in drastically increasing the sensitivity of ALMA in a crucial frequency range by improving the functioning of the major component, the radiation-sensor.

This involves what are known as super-conducting tunnel junctions. These miniscule sensors comprise two superconductors which are separated by an insulating layer measuring 1 to 2 nanometres, usually of aluminium oxide, with an area of 500 by 500 nanometres.

However, it is impossible to avoid a very thin layer of 1 nanometre of aluminium oxide 'leaking' in certain spots. Lodewijk and Zijlstra therefore conducted research into replacing aluminium oxide with aluminium nitride (AlN), with spectacular results. An aluminium nitride layer proves to be much more homogeneous and its sensitivity, in the 602 to 720 GHz range, is also much improved.

Herschel

Incidentally, Lodewijk's research topic of super-conducting tunnel junctions is also essential to the functioning of the Herschel Space Telescope, which is to be launched in April. The Herschel Space Telescope is the successor to the Hubble telescope. Delft University of Technology's Kavli Institute of Nanoscience has developed many of the crucial tunnel junctions for the Herschel Telescope's measuring equipment.


'/>"/>

Contact: Frank Nuijens, science information officer
f.w.nuijens@tudelft.nl
31-152-784-259
Delft University of Technology
Source:Eurekalert

Related biology technology :

1. Ethical evaluations of nanotechnology
2. Aldrich(R) Releases Materials Science Catalog That Includes Products to Advance Sustainable Energy and Nanotechnology Research
3. TechConnect World 2009 Matches Tomorrows Technology Solutions with Todays Business Needs for Clean-Technology, Biotechnology and Nanotechnology
4. The frontiers of nanotechnology
5. Using living cells as nanotechnology factories
6. Nanotechnology and the FDA: size matters
7. New nanotechnology centre helps turn big ideas into real products
8. William F. Prendergast Named One of the Top IP Lawyers in Nanotechnology
9. Using nanotechnology to create high-performance materials
10. Nanotechnology: Learning from past mistakes
11. Nanotechnology oversight: An agenda for the new administration
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/26/2016)... YORK , May 26, 2016 ... investors see value in this space. Today,s pre-market research on ... equities: Radius Health Inc. (NASDAQ: RDUS ), Cerus ... ARWR ), and Five Prime Therapeutics Inc. (NASDAQ: ... stock technical briefings at: http://www.activewallst.com/ ...
(Date:5/26/2016)... ... May 26, 2016 , ... Kinder Scientific ... positive developments that position the Company for the future. Kinder Scientific announces ... F. Kinghorn has been appointed Chairman of the Board, Curtis D. Kinghorn has ...
(Date:5/25/2016)... Diego, Calif. (PRWEB) , ... May 25, 2016 , ... ... Diego area and has consistently been rated one of its top attractions. Fortune ... the globe to participate in a unique and intimate team-building experience. , Each event ...
(Date:5/25/2016)... Oregon (PRWEB) , ... May 25, 2016 , ... ... Set features a variety of fracture-specific plating options designed to address fractures of ... industry-leading fracture fixation solutions. , The Acumed Ankle Plating System 3 is composed ...
Breaking Biology Technology:
(Date:5/3/2016)... May 3, 2016  Neurotechnology, a provider of ... MegaMatcher Automated Biometric Identification System (ABIS) , a ... projects. MegaMatcher ABIS can process multiple complex biometric ... combination of fingerprint, face or iris biometrics. It ... and MegaMatcher Accelerator , which have ...
(Date:4/28/2016)... -- First quarter 2016:   , Revenues ... first quarter of 2015 The gross margin was 49% ... and the operating margin was 40% (-13) Earnings per ... from operations was SEK 249.9 M (21.2) , Outlook ... 7,000-8,500 M. The operating margin for 2016 is estimated ...
(Date:4/26/2016)... 2016 Research and Markets has ... Market 2016-2020"  report to their offering.  , ,     ... The analysts forecast the global multimodal biometrics market ... the period 2016-2020.  Multimodal biometrics is ... as the healthcare, BFSI, transportation, automotive, and government ...
Breaking Biology News(10 mins):