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Laser full-body scan at airports for privacy
Highlights
Laser Full-Body Scan At Airports For Privacy
London: Here comes a new laser technology that can make you feel a lot better while at a queue for full-body scan at airports.
Researchers have invented a more precise and direct method for using that 'terahertz' (THz) technology to detect explosives from greater distances.
The method could ultimately lead to detectors that survey a wider area of an airport without the need for full-body scanners.
Researchers have invented a more precise and direct method for using that 'terahertz' (THz) technology to detect explosives from greater distances.
The method could ultimately lead to detectors that survey a wider area of an airport without the need for full-body scanners.
R. Kosloff and colleagues from Hebrew University of Jerusalem in Israel aimed to use THz directly to eventually develop even better remote sensors.
“We developed a computational tool and used it to successfully identify two explosives, RDX and TATP, with THz data directly. RDX is a component of plastic explosives, and TATP is an explosive found in the shoes of the 'shoe bomber' in 2009,” explained Kosloff.
“The ability to perform experimentally and simulate multidimensional spectroscopy should significantly enhance the screening ability of THz spectroscopy,” added the researchers.
The THz spectroscopy uses beams of electromagnetic radiation that lie between microwaves, like those used in kitchen ovens, and the infrared rays used in TV remote controls.
In addition to screening people for explosives, it is used at drug companies for quality-control purposes and, most recently, to study the layers of paint of ancient works of art.
With recent advances, the technique is becoming a strong candidate for detecting substances from a distance.
Other researchers have developed remote-sensing THz instruments, but they combine it with a second method to identify substances.
The paper was published in the ACS's Journal of Physical Chemistry Letters.
“We developed a computational tool and used it to successfully identify two explosives, RDX and TATP, with THz data directly. RDX is a component of plastic explosives, and TATP is an explosive found in the shoes of the 'shoe bomber' in 2009,” explained Kosloff.
“The ability to perform experimentally and simulate multidimensional spectroscopy should significantly enhance the screening ability of THz spectroscopy,” added the researchers.
The THz spectroscopy uses beams of electromagnetic radiation that lie between microwaves, like those used in kitchen ovens, and the infrared rays used in TV remote controls.
In addition to screening people for explosives, it is used at drug companies for quality-control purposes and, most recently, to study the layers of paint of ancient works of art.
With recent advances, the technique is becoming a strong candidate for detecting substances from a distance.
Other researchers have developed remote-sensing THz instruments, but they combine it with a second method to identify substances.
The paper was published in the ACS's Journal of Physical Chemistry Letters.
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