Navigation Links
A citizen's dosimeter, and it fits in your wallet
Date:7/1/2011

No matter how many plastic cards currently crowd your wallet, one day you may wish to make room for one more. The Department of Homeland Security(DHS)'s Science and Technology Directorate (S&T) has developed a miniaturized version of a dosimeter, a portable device used for measuring exposure to ionizing radiation, which can provide life-saving early detection in the unlikely event of a nuclear accident or dirty bomb.

Dubbed the Citizen's Dosimeter, this high-tech plastic card would be as convenient and affordable as a subway card, with the capability to measure the amount of radiation on a person or in a given area.

The National Urban Security Technologies Laboratory (or NUSTL, pronounced new STEEL) located in New York City and managed by DHS S&T, has been awarded a patent that covers the development of radiation dosimetry technologies DHS's first patent.

Currently, personal radiation dosimeter badges are worn in nuclear plants, but a plant dosimeter cannot be read on the spot; it must be sent to a processing lab to determine an individual's radiation dose. While a final prototype has not yet been built, a workable blueprint for a wallet-sized card that can detect radiation in real time is now in place.

"We were inspired by the Metro cards we use every day to get around Manhattan, and envisioned a dosimeter with that level of convenience," says Gladys Klemic, a NUSTL physicist who managed the project from Illinois. Klemic believes a dosimeter in this form could benefit both emergency responders and the general public.

Klemic and her team at NUSTL set out to create a dosimeter that would meet American National Standards Institute (ANSI) requirements for personal radiation dosimeter badges, and incorporate commercially available components to decrease the size and lower the price tag.

NUSTL began by using radiation-sensitive material from Landauer, Inc., a commercial dosimetry provider in Illinois, testing materials of varying thicknesses and combinations to determine how thin they could make the card while still achieving the targeted performance.

After testing nearly a half a dozen materials, the NUSTL scientists determined that using the chemical element tantalum allowed them to obtain accurate readings with minimal thickness. Combining this element in a unique double-layer, stainless steel filter helped to reduce false positives. It was this unique design that led to the patent award.

The next step is to develop a card reader to reveal the radiation dose measured by the Citizen's Dosimeter. In the event of a nuclear incident, first responders equipped with a card reader would immediately be able to measure radiation exposure for anyone carrying the Citizen's Dosimeter. While it will be years before a card and reader can be prototyped, tested, certified and wallet-ready, NUSTL has lined up a team to support the effort, including:

  • Engineers at StorCard, a California-based group that has previously developed a prototype credit-card floppy disk and reader

  • Nomadics, an Oklahoma engineering firm

  • Radiation detection experts at Landauer and Oklahoma State University

The Citizen's Dosimeter represents a technological breakthrough and the next generation in radiation detection. It also demonstrates how public-private partnerships can work to produce life-saving solutions in this case, protecting the nation from radiation resulting from an act of terrorism or natural disaster.


'/>"/>

Contact: John Verrico
john.verrico@dhs.gov
202-254-2385
US Department of Homeland Security - Science and Technology
Source:Eurekalert  

Related biology news :

1. Digging in dirt, Arbor Day planting, may help build citizenship: UMD study
2. IOF calls on European citizens to stand tall and speak out for their bones
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A citizen's dosimeter, and it fits in your wallet
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
(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)... LONDON , April 26, 2016 ... a product subsidiary of Infosys (NYSE: ... to integrate the Onegini mobile security platform with ... http://photos.prnewswire.com/prnh/20151104/283829LOGO ) The integration will ... to access and transact across channels. Using this ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... 27, 2016 NanoStruck Technologies ... NSKQB) ( Frankfurt : 8NSK) gibt ... vom 13. August 2015 die Genehmigung von der ... zusätzliche 200.000.000 Einheiten auf 400.000.000 Einheiten zu erhöhen, ... Davon wurden 157.900.000 Einheiten mit dem ersten Teil ...
(Date:4/27/2016)... ... April 27, 2016 , ... The Board ... the appointment of John Tilton as Chief Commercial Officer.  Mr. Tilton joined Biohaven ... the founding commercial leaders responsible for the commercialization of multiple orphan drug indications. ...
(Date:4/27/2016)... , ... April 27, 2016 , ... ... PhD to its Scientific Advisory Board. Dr. Lamka will assist PathSensors in expanding ... detection. , PathSensors deploys the CANARY® test platform for the detection of ...
(Date:4/27/2016)... MIAMI (PRWEB) , ... April 27, 2016 , ... ... joined the GSCG Advisory Board. Ross is the founder of GSCG affiliate Kimera Labs ... of Miami, where he studied hematopoietic stem cell transplantation for hematologic disorders and the ...
Breaking Biology Technology: