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On January 28, 1987, the field test of two explosive detectors took place. Equipment tested was the Model 97 from ITI and the Scintrex EVD-l. Personnel participating in the evaluation were: Captain Larry E. Harmel, Comdr., MSP Airport Division; Lt. Robert L. McWhorter, Assist. Comdr., Airport Division; Sergeant Kenneth Chartrand; Tfc. Ronald Price; Deputy Chief Allen L. Ward and Deputy Fire Marshall Richard G. Labrocco.

The test consisted of searches aboard aircraft, on the tarmac and of motor vehicles. Additional searches were conducted inside the terminal building and included those of pay lockers and hold room (pre-board) areas.

Continental Airlines Manager, Orlando Berry, provided a DC-8 aircraft for the exercise. Due to the short term availability of the aircraft, both the Model 97 and the EVD-1 were evaluated alternately. About a half a dozen bags were placed in the first class seats and overhead baggage area. One of these bags contained sheet explosive and another contained detonator cord.

Tfc. R. E. price searched the aircraft first with the Model 976 and then the EVD-l. The searches were monitored by Deputy Chief Ward, who recorded the results for each machine. Following the on-board search activity an attempt to detect the explosives by sampling air discharged through the "dump valve" was made. This entailed sampling air discharged for the aircraft at an external port (dump valve).

Other bags had been lined up on the tarmac, one of which contained C-4 explosive and another TNT. Again each bag was scanned by TfG. Price using the Model 97 and by Sgt. K. Chartrand using the EVD-l.

The Evaluation Committee found the Scintrex EVD-1 to be unsuitable for its intended use at BWI Airport. This is due to the inherent operational limitations of the equipment. While as reliable as the ITI Model 97, it was found to be too slow since it is a sample and analyze type instrument. It was subject to human error and to require manpower resources for operation which are not feasible.

The Model 97 was found reliable under a wide variety of conditions. It is fully portable and can be deployed upon short notice by a single operator. Operation is simple enough to permit all police personnel to operate it with minimal training.

The Model 97 renders immediate analysis since it is a continuous testing instrument. This permits the searching of a large number of articles within a relatively short time. It enables the operator to identify the specific article, area, etc., emitting the suspect vapor, thus eliminating confusion and additional hand searches.

The Evaluation Committee concurred that continuous screening is an essential capability of any explosive detections equipment and was unanimous in its findings and recommendations of the Ion Track Instruments, Inc., Model 97 explosive detector for deployment at BWI Airport.

Other tests have been conducted for the detection capabilities of the Model 97 by organizations such as Aramco Oil Corporation of Houston, British Petroleum and Stone and Webster Engineering. These particular test haven't been presently released. All of the above have reported excellent results for the Model 97 and 85.

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Over the past 15 years, ITI has built a reputation as the foremost source for solutions to difficult detection problems. The U.S. and British Governments have turned to ITI routinely for help in detecting concealed explosives. ITI's involvement with government security applications has resulted in the development of the world's first portable explosives detector.

Throughout the company's history, ITI has demonstrated a unique ability to deliver solutions. Scientists and engineers at ITI and affiliated UK Divisions have combined their expertise in electron capture technology, ion mobility spectrometry, thermionic ionization, vapor transport, and image analysis to focus on the detection, isolation and measurement of substances. This unique expertise and its focus on detection has resulted in ITI's preeminence in areas where material detection is a primary concern.

Currently, ITI security provides bomb protection for the U.S. nuclear power industry, the U.S. military, and several other high-risk organizations. Present research is directed toward walk-through and portable explo

sives detectors fast and sensitive enough for in-line use at airports, as well as toward research in detection techniques that incorporate new technologies. ITI Industrial has applied its expertise in leak detection to enhance QA/QC activities. Electronics manufacturers, pharmaceutical packaging firms, defense contractors and many other organizations rely on the accuracy and speed of ITI's pressure decay and tracer gas leak detectors to verify and maintain the quality of raw materials and manufactured products. - ITI’s image analysis technology is another tool developed to provide detection and identification of difficult materials and conditions. At ITI's Optomax Division, the company’s expertise in automation, imaging, and image analysis is being used to provide custom-designed, highspeed, visual inspection and measurement tools for research and industry. New, computerbased products incorporating advanced operating systems are being utilized to meet the increasing demand for cost-effective instruments of exceptional versatility.

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