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Search News by Jennifer Lauren Lee

Displaying 76 - 93 of 93

Hot Off the Lathe: Dimensional Measurements of First Parts of VLOC Pressure Standard

May 28, 2015

Last fall, PML researchers built and tested the first-ever photonic pressure sensor, which makes its measurements using light. This sensor, called the Fixed

New Chip Defect-finding Scheme Attracts Industry Leaders

May 27, 2015

Until recently, the semiconductor industry had a go-to method for quantifying atomic-scale defects in the billions of transistors contained in a single computer

Photonic Thermometers: Out of the Lab, Into a Bucket of Water

April 28, 2015

A new class of tiny chip-based thermometers being developed by PML's Sensor Science Division has the potential to revolutionize the way temperature is gauged

Why Firefighters Get Steam Burns: Exploratory Study Underway

April 27, 2015

A mystery has raged for decades surrounding accounts of firefighters who receive steam burns through their protective clothing. One ruling theory is that the

'Standing Room Only' for PML's Hands-On Dimensional Metrology Workshop

April 22, 2015

Earlier this month, PML's Dimensional Metrology Group hosted a three-day hands-on training event for 13 industry and government attendees. The class was given

Computing for Better Radiation Therapy

February 19, 2015

Doctors devising a plan of attack on a tumor may one day gain another tactical advantage thanks to a series of sophisticated calculations proposed by PML's

Hidden Uncertainties Uncovered in Nuclear Forensic Measurement

February 2, 2015

A little detective work by nuclear physicists has uncovered hidden uncertainties in a popular method for precisely measuring radioactive nuclides, often used to

Restoration Begins on NIST's Million-Pound Deadweight Machine

January 27, 2015

For the first time in half a century, NIST's 4.45-million newton (equivalent to one million pounds-force) deadweight machine – the largest in the world – is

Prototype for First Traceable PET-MR Phantom

January 23, 2015

As cancer diagnostic tools, a new class of imagers – which combines positron-emission tomography (PET) with magnetic resonance imaging (MR or MRI) – has shown

Ultrasonic Thermometers for Medical Dosimetry

December 16, 2014

PML researchers are exploring whether ultrasound can be used as a faster, more efficient way to take three-dimensional images of radiation dose profiles in

Lighting the Path to Smaller, Tougher Thermometers

December 15, 2014

Two new prototypes for tiny chip-based thermometers are illuminating light's potential to revolutionize the way temperature is gauged. With further development

Thin, Strong Bond for Vacuum Seal

December 2, 2014

An ultra-stable, ultra-thin bonding technology has been adapted by researchers in PML's Semiconductor and Dimensional Metrology Division for use as a super

Better Cargo Inspection Standards at Border Crossings

December 2, 2014

As part of an Interagency Agreement between NIST and the Department of Homeland Security (DHS), PML's Radiation Physics Division recently completed a series of

World's First Photonic Pressure Sensor Outshines Traditional Mercury Standard

October 29, 2014

For almost 400 years, mercury gauges have prevailed as the most accurate way to measure pressure. Now, within weeks of seeing "first light," a novel pressure

Trouble with a Capital 'G'

October 27, 2014

NIST has taken part in a new push to address a persistent and growing problem in physics: the value of G. The Newtonian constant of gravitation, used to

Calibrating Cancer Radiotherapy Beams Using Light and Sound

September 17, 2014

Doctors shrink tumors with radiation therapy, but a badly calibrated beam can cause serious complications. Scientists in NIST's Radiation Physics Division in

Beyond Six Nines: Ultra-enriched Silicon Paves the Road to Quantum Computing

August 11, 2014

Using a relatively straightforward technique, a team of NIST researchers has created what may be the most highly enriched silicon currently being produced. The

A phantom (life-size dummy) in the scanner

Backscatter Body Scan Redux

July 21, 2014

Airline passengers have already said bon voyage to the controversial backscatter x-ray security scanners, pulled from U.S. airports in 2013 over concerns about