Featured Research

from universities, journals, and other organizations

Mimicking The Human Body With Carbon Black Polymers

Date:
October 13, 2003
Source:
National Institute Of Standards And Technology
Summary:
Metal detectors have become so commonplace that you might think we know all we need to about them. However, the law enforcement community must continually update performance standards for metal detectors to ensure that new products purchased in the marketplace operate at specified minimum levels.

Metal detectors have become so commonplace that you might think we know all we need to about them. However, the law enforcement community must continually update performance standards for metal detectors to ensure that new products purchased in the marketplace operate at specified minimum levels. Further-more, they must know if exposure to the magnetic fields generated by metal detectors affects the functioning of personal medical electronic devices (such as cardiac defibrillators, infusion pumps, spinal cord stimulators, etc.)

Related Articles


With funding from the U.S. Department of Justice's National Institute of Justice, researchers at the National Institute of Standards and Technology (NIST) develop and revise such standards as new technologies become available. One project concentrated on finding better materials to mimic the human body's response to the magnetic fields generated by metal detectors. By using such biologic "phantoms," researchers can create more realistic testing scenarios without subjecting medical patients to exposure.

Since about two-thirds of the human body is made of water, conventional phantoms utilize liquids and salts. However, the liquids are subject to evaporation that changes both the salinity and the electrical conductivity, making it difficult to model human body components consistently.

The NIST researchers came up with an improved phantom material, a polymer mixed with carbon powder. By varying the amount of carbon powder used, the materials can mimic blood, bone, fat and skin. The researchers chose carbon black--a fine powder made almost entirely of elemental carbon--because of its electrical conductivity and low cost. The impregnated polymers can be formed in a variety of shapes and sizes. A recent NIST publication* discusses the material and its low-frequency electrical properties in detail.

###

* NIST Technical Note 1529, Carbon-Loaded Polymer Composites Used as Human Phantoms: Theoretical Models for Predicting Low-Frequency Dielectric Behavior. R.G. Geyer, J. Baker-Jarvis, M.D. Janezic, and R.K. Kaiser.


Story Source:

The above story is based on materials provided by National Institute Of Standards And Technology. Note: Materials may be edited for content and length.


Cite This Page:

National Institute Of Standards And Technology. "Mimicking The Human Body With Carbon Black Polymers." ScienceDaily. ScienceDaily, 13 October 2003. <www.sciencedaily.com/releases/2003/10/031012234227.htm>.
National Institute Of Standards And Technology. (2003, October 13). Mimicking The Human Body With Carbon Black Polymers. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2003/10/031012234227.htm
National Institute Of Standards And Technology. "Mimicking The Human Body With Carbon Black Polymers." ScienceDaily. www.sciencedaily.com/releases/2003/10/031012234227.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Building Google Into Cars

Building Google Into Cars

Reuters - Business Video Online (Dec. 19, 2014) Google's next Android version could become the standard that'll power your vehicle's entertainment and navigation features, Reuters has learned. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
AP Review: Nikon D750 and GoPro Hero 4

AP Review: Nikon D750 and GoPro Hero 4

AP (Dec. 19, 2014) What to buy an experienced photographer or video shooter? There is some strong gear on the market from Nikon and GoPro. The AP's Ron Harris takes a closer look. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins