Moreover there is no way to ensure that such a method

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inconvenience caused to passengers is also deplorable. Moreover there is no way to ensure that such a method will be fool proof. It is therefore evident that manual searching of carry-on luggage is not a satisfactory solution for high capacity aircraft through it can be adopted for domestic flights at small airports. Thus the need for having X-ray examinations of baggage was introduced. Under this system the baggage is passed through X- ray beams over conveyer belts. The X-rays images are then displayed on a display monitor that shows the inside contents of the baggage. Thus any dangerous article can be easily detected without opening the baggage. X-ray system has another feature known as film safe procedure. X-ray beams used for X-ray detection are using heavy filtration and therefore any camera film carried inside the passenger baggage does not get exposed. At some of the airports in USA and in many other countries a number of incentives are offered to security officials who can unearth a hidden weapon or an explosive. Some times the cash award may be as much as $25 for a single piece of weapon. This in turn gives good motivation to security officials to be more vigilant. At certain airports (like Frankfurt in Germany) special chambers for checking the baggage have been designed. Baggages about which security staff is doubtful are sent to these chambers, which are made of steel called decompression chambers. In these (c) UPES, Not for Reproduction/ Sale
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UNIT 9: Civil Aviation Society Notes ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ chambers conditions similar to actual flight conditions are produced and in case the baggage contains any bomb the same gets detonated. Check Your Progress Fill in the blanks: 1. It is possible to identify the presence of RDX and plastic bombs by using …………… . 2. DFMD is a security equipment, which stands for …………… . Modern Techniques – TNA, Vapour Detection, Smart X-ray and Tomography The inherent danger posed by Semtex plastic that had caused the crash of Pan Am Jumbo over Lockerbie had been troubling the security authorities all over the world. USA developed a technique in 1989 to detect the presence of Semtex through a process known as TNA (Thermal Neutron Analyser). Under this technique passenger’s baggage is bombarded with neutrons, which causes the scanned items to emit gamma rays. By observing the concentration and other features of gamma rays it is possible to detect the presence of plastic explosives. It was reported that USA had tested a large number of luggage and cargo items through this technique and its detection capability was found as 95 percent of various types and shapes of explosives. The cost of this machine was more than 500,000 lbs. Certain TNA machines have already been installed at JFK airport in New York, Miami Airport, London airport etc. TNA takes about six seconds to scan a single bag. Since TNA equipment does not use some amount of radiation it cannot be used for screening passengers nor is it suitable for screening “carry-on baggage”. The high cost of the machine is another hitch in fast implementation of this equipment at all airports.
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  • Fall '19
  • Instrument approach, Runway, Rajiv, Aviation Safety & Security Management

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