Press Esc to close
Tuesday 22 July 2014
News updated at 8:05 PM IST
Weather
Max: 28°C
Min : 21°C
In Bangalore
Sunny day

New smart laser device can detect explosives in a jiffy

Melbourne, Dec 11, 2012, PTI:

End of bomb sniffer dogs! Scientists have developed a new 100 times more faster and sensitive laser device capable of detecting tiny traces of explosive vapour in a jiffy.

The prototype - a pulsed, quantum laser-based, cavity ring-down spectrometer - is being tested at the US government’s Los Alamos National Laboratory in New Mexico.
The laser machine developed by the University of New South Wales (UNSW) is “about 100 times more sensitive and 100 times faster than any other detection device”, Associate Professor Charles Harb said.

“We can measure the components of TNT very clearly, down to the tiny sub-millitorr pressures, in other words in the parts per billion range in atmosphere,” Harb said.
The laser device could sniff bags travelling along a conveyor belt and instantly alert security personnel if it detects explosive vapours from a passing object, such as a suitcase.


It could replace intrusive airport security checks such as pat downs and full body scans and bomb sniffer dogs, UNSW said in a statement. According to Harb, the device uses mirrors to repeatedly pass through the vapour in a “figure-of-eight” path, which provides a more accurate measurement.

Harb expected that it would take two years of testing and calibrating the prototype – to detect “unique signatures of other substances and different types of explosives” - before it’s ready for commercial use.

Harb said police wanted a machine that could work around-the-clock to “identify the actual type of explosive and check every suitcase passing on a conveyor belt”, which is something that sniffer dogs can’t do.

Go to Top

Photo Gallery
Aganwadi workers protest with their demands...

Aganwadi workers protest with their demands...

Tata Group chairman Cyrus Mistry with...

Tata Group chairman Cyrus Mistry with...

Actress Sonam Kapoor at the trailer launch...

Actress Sonam Kapoor at the trailer launch...

Foreign tourists meditating at Bodhgaya Mahabodhi...

Foreign tourists meditating at Bodhgaya Mahabodhi...

Car designed by the students of Manav...

Car designed by the students of Manav...

Sports Secretary Ajit Mohan Sharan, IOA President N Ramachan...

Sports Secretary Ajit Mohan Sharan, IOA President N Ramachan...

President Pranab Mukherjee visited the Presidentís Estate...

President Pranab Mukherjee visited the Presidentís Estate...

Citizens of Mumbai celebrating 100 years of the...

Citizens of Mumbai celebrating 100 years of the...

Thai Princess Maha Chakri Sirindhorn during her visit to the Indian Museum ...

Thai Princess Maha Chakri Sirindhorn during her visit to the Indian Museum ...

Vehicles stuck in a heavy traffic jam on Delhi-Gurgaon National Highway ...

Vehicles stuck in a heavy traffic jam on Delhi-Gurgaon National Highway ...

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bangalore - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523