Lasers can detect weapons-grade uranium from afar

phys.org | 3/9/2017 | Staff
Omnista (Posted by) Level 3
Click For Photo: https://3c1703fe8d.site.internapcdn.net/newman/gfx/news/hires/2017/laserscandet.jpg

A technique for detecting enriched uranium with lasers could help regulators sniff out illicit nuclear activities from as far as a couple of miles away.

It's hard enough to identify nuclear materials when you can directly scan a suspicious suitcase or shipping container. But if you can't get close?

Researchers - Technique - Chemicals - Distance - Just

Now, the researchers have shown that a technique often used to identify chemicals at a distance can also distinguish between ordinary uranium-238 and the fission-prone uranium-235. Just three fewer neutrons make a big difference in the element's potential for destruction.

"It's a much harder problem to try to measure different isotopes of the same element," said Igor Jovanovic, professor of nuclear engineering and radiological sciences at the University of Michigan, who conducted parts of the research while at Pennsylvania State University. "Different isotopes are very important in the case of uranium because some of them can be used for the production of nuclear weapons."

Chemical - Detection—the - Approach - Mars - Curiosity

With ordinary chemical detection—the approach used by the Mars Curiosity rover, for instance—a laser strikes a surface and causes electrons to jump off the atoms and molecules, forming a plasma. When the electrons jump back into the atoms and molecules, and then come down from higher-energy states within them, they emit light in a particular set of colors that serve as a fingerprint for that atom or molecule.

Jovanovic and his team—Kyle Hartig, assistant professor of nuclear engineering at the University of Florida, and Isaac Ghebregziabher, a postdoctoral scholar at Penn State—showed that this technique can tell the difference between uranium-235 and uranium-238 when the uranium is bonded with oxygen.

Measurements - Air - Constituents - Air - Fact

"Not only is it possible to make measurements in air, but some constituents of air in fact make this detection more readily achievable," Jovanovic said.

The technique takes advantage of a phenomenon known as laser filamentation. When very short—and very intense—laser pulses run through...
(Excerpt) Read more at: phys.org
Wake Up To Breaking News!
Tagged:
Sign In or Register to comment.

Welcome to Long Room!

Give Us 5 Minutes, We'll Give You The World!

LongRoom Culture
Mother Bear and Cubs Crossing the Road And Elk Crossing the Road! It is a good day to cross the road!  Here are the Bears!  And...
Beautiful Red Streams of Lava Flowing Into Sea In Hawaii! This colorful scene is nature at its most magnificent, the hot lava...
Bear Cub With A Clam Holding On To It's Paw! This cub stands up as if to say "Help! Mom!!"  But the clam holds firmly to his...
8 Year Old Girl Tries Bionic Hand for First Time - Amazing! Bionic technology has come a long way and makes the prospects look...
Rabbit Leaps Joyfully Around His New Sand Pit, Ending By Flopping Over! What a great idea for a bunny sand pit for bunnies...
Extreme Frisbee? Two Frisbee Players Toss and Catch An Incredibly Long Frisbee Throw! The Throw by Brodie Smith.   This...
Why Tying Your Dog's Leash To A Plastic Chair Is A Really Bad Idea! The Chair:  "It can't be bargained with. It can't be...
Man Helping Little Old Lady Across The Road Almost Runs Her Over! This good Samaritan leaves his car in neutral as he goes to...
Love Story - Klepetan the Stork Has Returned to His Crippled Mate Malena Every Year for 14 Years! On a rooftop in the village...
Colorblind Grandfather Sees Color for the First Time! This touching video is the first time this grandfather sees colors with...
A Walk In The Newly Opened Glass Bottomed "Sky Pool" In Houston, Is Terrifying! This infinity pool in Market Square Tower, a...
Incredible "Hole in Two" by Henley at Master's Tournament! This amazing shot actually stayed in the hole and caused enough...
Artistic Rock Creations Shown In A Great Slideshow! These amazing pictures made out of rocks really capture solid images that...
Father Finds Great Solution To Stop His Infant Son From Crying! Father faced with his son crying comes up with a great idea.
Alligator In A Sewer! This alligator in a sewer demonstrates that they really can be found there!  "People don't realize the...
Cowabunga! Great Curl On A Wave! The awesomeness of water is displayed quite well in this gif of a huge wave.
One Of The Most Venomous Caterpillars In The World! If you see anything like this, don't touch it, it can put you in the...
Mesmerizing Domino World Record Set - Most Dominoes Ever To Fall In A Circle! It took 18 expert domino artists ten days to set...
Huge Chicken Emerges From Coop Attracts Internet Attention! The internet has become fascinated with a giant chicken!  When this...
Video Of Massive Shredder For Automobiles Shown In Reverse! This incredible machine has ingested a car, which in this video it...
Coca-Cola Polar Bear Mascot Joking With People During Photography Session! Being a mascot is definitely a skill!  The Coca-Cola...
Adorable Kitten Drinking Milk And Wiggling Ears! Small kittens are so cute when they drink from a bottle because they wiggle...
Dog Digs Shallow Hole And Lays Down In It For A Nap! Caught in the act of taking a nap!  This beautiful dog is so charming when...
Amazing NEW WORLD RECORD Ski Jump By Stefan Kraft!!!! Stefan Kraft literally flies to this new world record!  An Austrian ski...
Closeup View Of A Tire Change During A Pit Stop! You Can See The Brakes On Fire! Pitstops are awesome to watch because the...
Cat Closes Cupboard Door as Baby is Playing in the Cupboard! The cat soundly closes the cupboard door on this baby who is...
Dog Pool Party! Swim Dogs Swim!  This pool party went to the dogs.  It looks like humans can come, as long as they are...
Cat Unsuccessfully Tries To Wake Up Friend With Some Gentle Pats! This cute cat tries to wake up a sleepy friend.  His...