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Radiation Physics News

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On the Road to a Neutron Microscope: First Light for World-Class Neutron Imaging Facility
Release Date: 11/20/2015

First image taken with NIST's new cold neutron imaging facility. The test sample is a 3 mm-thick stainless steel bottle opener. Top: Raw image. … more

NIST Calibrates Quartz Crystals for Fusion Device
Release Date: 09/29/2015

Testing a Sandia spectrometer at the NIST tungst more

Getting a Critical Edge on Plutonium Identification
Release Date: 03/23/2015

Two of the TES-based devices sitting on one key of a computer keyboard. The brown rectangle at the top is the mount upon which the … more

Computing for Better Radiation Therapy
Release Date: 02/19/2015

A photograph of the free-air chamber used for the physical measurements (left) and the corresponding model used in the computational simulations … more

Hidden Uncertainties Uncovered in Nuclear Forensic Measurement
Release Date: 02/02/2015

A visualization of the detectors used for anticoincidence more

Prototype for First Traceable PET-MR Phantom
Release Date: 01/23/2015

A fused PET-CT image of the new phantom with its traceably calibrated amount of fluor more

Ultrasonic Thermometers for Medical Dosimetry
Release Date: 12/16/2014

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

Better Cargo Inspection Standards at Border Crossings
Release Date: 12/02/2014

An x-ray image showing a standard test object (upper left) held aloft by support apparatus and a forklift. In this case, the test object is a … more

New High-Resolution X-ray Spectrometer for Beam Lines
Release Date: 10/24/2014

TES detector (at top of device) mounted for use in a beam line. Click on image for enlarged view. Photos: Dan Schmidt/NIST NIST scientists have … more

Calibrating Radiation Beams with Light
Release Date: 09/17/2014

Ronald Tosh with the most recent setup for measuring temperature changes more

Excimer Neutron Detection
Release Date: 04/15/2014

In a truly scintillating set of experiments, scientists at NIST and the University of Maryland have demonstrated that a process called excimer* … more

Spraying Mosquitoes . . . with Gamma Rays
Release Date: 08/16/2013

A paper cup served as an early irradiation enclosure. PML researchers placed dosimeters at various points in the enclosure and also monitored … more

New NIST Standard Reference Material to Help Calibrate Hospital CAT Scanners
Release Date: 07/23/2013

Scientists at the National Institute of Standards and Technology (NIST) have developed a new standard reference material (SRM), the first such … more

CT Standards Save Time and Money
Release Date: 06/05/2013

Larry Hudson with NIST-fabricated examples of test artifacts called out by the new CT image quality standard for security applications. Click … more

CT calorimetry
Release Date: 12/21/2012

Heather Chen-Mayer at the PET/CT scanner with HDPE phantoms. The large sections are for whole-torso measurements; the small cylinder is one more

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