(NAR) VOL. 18 NO. 1/JANUARY - MARCH 2007
X-R AY SPECIFIC ATIONS: | X-RAY DESCRIPTION: | |
1.1 | AUTOMATIC DETECTION OF EXPLOSIVES & DRUGS | The capability of the X-ray Machine to directly indicate and recognize “explosive” and “drugs” automatically at real time. Automatic detection avoids delay in inspection improving operators’ performance. |
1.2 | THREAT IMAGE PROJECTION | Superimpose threat & image with automatic projection capability of fictional baggage items containing threat object. |
1.3 | AUTOMATIC DENSE AREA DETECTION | The capability of the machine to detect hidden item behind high dense material. The detected area is analyzed by means of special enhancement filter software. The dark area is highlighted locally. The resolution is measured in terms of American Wire Gauge Number (AWG#). Most explosives use wire for blasting. |
1.4 | PENETRATION | The capability of a machine to penetrate at least 25mm thickness of steel. |
1.5 | FILM SAFETY | X-ray machine radiation should not damage picture films or like |
1.6 | HEALTH (AND) SAFETY | X-ray machine should conform to applicable health and safety standards of the country. |
1.7 | STANDARD STEP-WEDGE | a standard ICAO Combined Testing Piece (CTP) or ASTM Level 1-9 should be supplied by the manufacturer. |
1.8 | ALARM SYSTEM | The device should be equipped with an alarm system (light and audio) triggered by suspicious baggage or which can be initiated by the operator to identify suspicious baggage emerging from the inspection chamber. |
1.9 | POWER CONSUMPTION / POWER FLUCTUATION | Lowest electrical consumption and equipped with surge protection and Uninterruptible Power Supply (UPS). |
1.10 | PHOTO DIODE ARRAY | Arrangement of photo diodes such that 100% coverage of luggage is attained if the arrangement is two dimensional solid state detector arrays consisting of silicon photo diodes in planar techniques. |
1.11 | ZOOM CAPABILITY | The capability to magnify image on the monitor. |
1.12 | NUMBER OF SHADES | The number of discrete brightness steps demonstrated at the monitor. The greater the number of shades of gray demonstrable, the better the cognizance of object is attained and therefore, a more precise Judgment of contents on luggage is achieved. |
1.13 | IMAGE ENHANCEMENT | A feature where image penetration is adjustable to high, low and inverse modes. This is important when densities of different contents of luggage are detected. |
1.14 | RADIATION DOSE/ PER INSPECTION | Radiation dose is measured in terms or miliroengen (MR.). Lower radiation dose is recommended. |
1.15 | BAGGAGE INSPECTION/ HR (SPEED) | The capability of the x-ray machine to have a fast and effective inspection to avoid delay. |
1.16 | ADDITIONAL FEATURES | This refers to height, weight, dimensions, physical/operational characteristics which are not found or common in every machine |
1.17 | IN-COUNTRY SERVICES/ MAINTENANCE AND PAST TRACK RECORD | Availability of responsive service and spare parts |
1.18 | COMMONALITY OF SPARE PARTS | X-ray machine parts to existing inventory for repair and maintenance. |