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:6/24/2016)... , ... June 24, 2016 , ... Researchers at the ... commonly-identified miRNAs in people with peritoneal or pleural mesothelioma. Their findings are the subject ... it now. , Diagnostic biomarkers are signposts in the blood, lung fluid or ...
(Date:6/23/2016)... Mass. , June 23, 2016   ... development of novel compounds designed to target cancer ... napabucasin, has been granted Orphan Drug Designation from ... the treatment of gastric cancer, including gastroesophageal junction ... stemness inhibitor designed to inhibit cancer stemness pathways ...
(Date:6/23/2016)... 2016 Houston Methodist Willowbrook Hospital has ... Association to serve as their official health care ... Willowbrook will provide sponsorship support, athletic training services, ... coaches, volunteers, athletes and families. "We ... Association and to bring Houston Methodist quality services ...
(Date:6/23/2016)... , June, 23, 2016  The Biodesign Challenge (BDC), ... new ways to harness living systems and biotechnology, announced ... (MoMA) in New York City . ... participating students, showcased projects at MoMA,s Celeste Bartos Theater ... Antonelli , MoMA,s senior curator of architecture and design, ...
Breaking Biology Technology:
(Date:6/1/2016)... NEW YORK , June 1, 2016 ... Biometric Technology in Election Administration and Criminal Identification to ... According to a recently released TechSci Research report, " ... Sector, By Region, Competition Forecast and Opportunities, 2011 - ... $ 24.8 billion by 2021, on account of growing ...
(Date:5/20/2016)... MINNEAPOLIS , May 20, 2016  VoiceIt ... technology partnership with VoicePass. By working ... user experience.  Because VoiceIt and VoicePass take slightly ... two engines increases both security and usability. ... expressed excitement about this new partnership. ...
(Date:5/12/2016)... DALLAS , May 12, 2016 ... has just published the overview results from the Q1 ... of the recent wave was consumers, receptivity to a ... wearables data with a health insurance company. ... choose to share," says Michael LaColla , CEO ...
Breaking Biology News(10 mins):