Navigation Links
New NIST nano-ruler sets some very small marks
Date:9/22/2009

The National Institute of Standards and Technology (NIST) has issued a new ruler, and even for an organization that routinely deals in superlatives, it sets some records. Designed to be the most accurate commercially available "meter stick" for the nano world, the new measuring toola calibration standard for X-ray diffractionboasts uncertainties below a femtometer. That's 0.000 000 000 000 001 meter, or roughly the size of a neutron.

The new ruler is in the form of a thin, multilayer silicon chip 25 millimeters square (just under an inch). Each one is individually measured and certified by NIST for the spacing and angles of the crystal planes of silicon atoms in the base crystal.

X-ray diffraction works by sending X-rays through a crystalwhich could be anything from a wafer used to make microchips to a crystallized sample of an unknown proteinand observing the patterns made by the X-rays as they diffract from electrons in the crystal. The spacing, angles and intensity of the pattern's lines tell a trained crystallographer the relative positions of the atoms in the crystal, as well as something about the quality of the crystal, the nature of the chemical bonds and more. It is one of the workhorse techniques of materials science and engineering. The precision version, high-resolution X-ray diffraction, can be used to determine the thickness, crystal structure, embedded strain and orientation of thin films used in advanced semiconductor devices and nanotechnologies.

Formally NIST Standard Reference Material (SRM) 2000, "Calibration Standard for High-Resolution X-Ray Diffraction," the new ruler gives crystallographers an extremely well-known crystal sample for calibrating their precision instruments. It was made possible by the development of a unique parallel beam diffractometer at NIST that makes measurements traceable to international measurement standards and is believed to be the most accurate angle measuring device of its kind in th
'/>"/>

Contact: Michael Baum
michael.baum@nist.gov
301-975-2763
National Institute of Standards and Technology (NIST)
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Poniard Pharmaceuticals Announces Pivotal Phase 3 SPEAR Trial Evaluating Picoplatin in Small Cell Lung Cancer Reaches 320th Event Target
2. Reportlinker Adds Small Molecule Kinase Inhibitors Report
3. BioSpecifics Technologies Corp. to Present at CapStone Investments Third Annual Small-Cap Investor Conference
4. Global Small Molecule Kinase Inhibitors Market to Reach $16.2 Billion by 2015, According to a New Report by Global Industry Analysts, Inc.
5. Debiopharm Group and Moffitt Cancer Center Sign Development and Commercialisation Agreement for Small Molecule Debio 0928 in Early Preclinical Development for Treatment of Solid Tumours
6. The Worlds Smallest Hero! Rexin-G, Targeted Therapy for Metastatic Cancers
7. AEterna Zentaris Discloses Preliminary Phase 2 Trial Results for Perifosine in Combination with Radiotherapy for Non-Small Cell Lung Cancer
8. Signostics Receives FDA Clearance for Worlds Smallest Ultrasound Product
9. PTC Therapeutics and Spinal Muscular Atrophy Foundation Announce $8.5 Million Small Molecule Development Collaboration
10. Big prize for small science physicist
11. Aegera Initiates Phase 2 Clinical Trial Of AEG33773 - A Small Molecule Targeting Neuropathic Pain
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/24/2014)... DALLAS and NEW YORK , ... a biopharmaceutical company advancing patient care in critical areas, announced ... of common stock, and warrants to purchase up to an ... of $4.00 per share and $.01 per warrant.  The warrants ...
(Date:12/24/2014)... “Preparative & Process Chromatography Market ... (Columns, Solvents, Buffers, Valves, Guages, Seals), Accessories, Services, ... Forecasts to 2019” provides a detailed overview of ... trends, and strategies impacting the preparative and process ...
(Date:12/24/2014)... SoundConnect’s 2015 next ... edge communication technology, provide continued education and inform ... series demonstrates online communication features and benefits; empowering ... most innovative and powerful tools. , According to ...
(Date:12/24/2014)... The report provides basic information on ... and industry overview. This report also presents product ... is separated by regions, technology and applications. The ... client survey, marketing channels, industry development trend and ...
Breaking Biology Technology:PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2
... University researchers are finding ways to improve infrared photodetector ... systems, as well as used increasingly in commercial applications ... in a recent article in the journal ... how infrared photodetection can be done more effectively by ...
... LEXINGTON, Mass., Feb. 14, 2012 Avaxia Biologics, ... drugs that act locally within the gastrointestinal tract, ... million Series A angel-led financing.  Cherrystone Angels of ... from Beacon Angels, Boston Harbor Angels, Launchpad Venture ...
... PROVIDENCE, R.I., Feb. 14, 2012  Nabsys, Inc., a ... positional sequencing technology, today announced that data demonstrating ... DNA will be presented at the annual Advances ... 15 to 18, on Marco Island, Fla., and ...
Cached Biology Technology:New nano-material combinations produce leap in infrared technology 2New nano-material combinations produce leap in infrared technology 3Avaxia Biologics, Inc. Closes $4.1 Million Series A Financing to Advance Oral Antibodies for Inflammatory Bowel Disease 2Avaxia Biologics, Inc. Closes $4.1 Million Series A Financing to Advance Oral Antibodies for Inflammatory Bowel Disease 3Nabsys to Present DNA Sequence Data from Solid-State Nanodetectors at the Annual Advances in Genome Biology and Technology (AGBT) Meeting and the EMBL Omics and Personalized Health Conference 2Nabsys to Present DNA Sequence Data from Solid-State Nanodetectors at the Annual Advances in Genome Biology and Technology (AGBT) Meeting and the EMBL Omics and Personalized Health Conference 3
(Date:1/22/2015)... Jan. 9, 2015 Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ON), ... general the State of Washington,s Department ... new enrollment and central issuance system for driver,s licenses and ... The project planning and development will start in January 2015, ...
(Date:1/22/2015)... Showcase, Hall E -   EyeLock Inc. , a market ... showcase its EyeLock ID technology integrated in a 3D printed ... Oak Ridge National Laboratory (ORNL) at the 2015 ... technology is being used to validate the driver and authorize ...
(Date:1/22/2015)... , Jan. 20, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... commerce market, reports on the recent success of the Wocket™ smart wallet ... Wocket smart wallet was named as one of the "11 Hot ... "5 Best Products Launched At CES So Far" by Newseveryday.com and "The ...
Breaking Biology News(10 mins):Valid USA Signs Contract For Washington Driver's License Issuance 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3
... Restoration International (SER) released its May 2008 Briefing ... & Biological Conservation within the Ecosystem Approach at ... the Parties held in Bonn, Germany, May 19-30, ... Ecosystem Approach, as developed by the CBD and ...
... and Technology (NIST) have reported* a new technique to ... centrifuges. Many potential applications for carbon nanotubes depend on ... the most important features of the new technique, say ... to produce industrial quantities of high-quality nanotubes. ...
... of shipments involving regulated radioactive materials used in medicine ... industry experts. Meeting in Rome this week at an ... the Mediterranean region that seeks to ease hardships for ... delivery of beneficial radiation sources. The shipment issues ...
Cached Biology News:Integrating restoration and conservation within the ecosystem approach 2Spin control: New technique sorts nanotubes by length 2Experts tackle shipment issues for beneficial radiation sources 2Experts tackle shipment issues for beneficial radiation sources 3
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
TXNL2 Antibody...
Rat polyclonal to Vitamin B3 ( Abpromise for all tested applications). Antigen: Chemical / Small Molecule, Vitamin B3 conjugated to BSA....
Biology Products: