American Science and Engineering, Inc. Introduces Gemini Parcel Inspection System; First Order Received from the U.S. Government to Protect High-threat Facility.

BILLERICA, Mass. -- American Science and Engineering, Inc. (NASDAQ: ASEI) (AS&E(R)), a leader in X-ray detection technology, announced today the launch of Gemini(TM), the industry's most complete non-intrusive parcel inspection system for detecting security threats and contraband in parcels, baggage, and mail. Gemini enables security authorities to easily detect weapons, explosives, and drugs, and is ideal for use in high-threat government facilities, airports, and other security-sensitive areas.

"With the introduction of Gemini, we are offering the most comprehensive, advanced contraband and threat detection system for parcels on the market today," said Robert Postle, AS&E's Vice President of Worldwide Marketing and Sales. "We are pleased to receive the initial order for Gemini from a U.S. Government agency to protect their high-threat facility. The combination of Z(R) Backscatter(TM) and dual-energy technologies provides security officials the most reliable means to detect threatening materials such as guns, IEDs, and plastic explosives -- an essential tool to protect facilities where superior detection is a requirement. This latest parcel product is the lowest cost multi-technology system available."

Unique Combination of Dual-Energy and Z(R) Backscatter(TM)

Gemini is the first conventional parcel inspection system on the market to combine dual-energy transmission and proprietary Z Backscatter X-rays, allowing operators to obtain the most information about the contents of a parcel. Operators simultaneously view two images, a Z Backscatter image and a dual-energy image, dramatically increasing the likelihood of finding illegal materials hidden in parcels.

Dual-energy transmission provides outstanding image quality, and enables the quick detection of a wide variety of threats such as guns, knives, and wires for IEDs. In addition, dual-energy offers organic and metallic discrimination in uncluttered environments. AS&E's patented Z Backscatter technology provides exceptional detection of organic materials, such as explosives and narcotics, which are easily missed by transmission-only systems in cluttered parcels. Z Backscatter's photo-like images are easy to interpret, thereby speeding analysis time and reducing operator fatigue.

About AS&E(R)

American Science and Engineering, Inc. (AS&E) is the leading worldwide supplier of innovative X-ray inspection and screening systems. With more than 45 years of experience in developing advanced X-ray security systems, the Company's product line utilizes a variety of technologies, including patented Z(R) Backscatter(TM), Shaped Energy(TM) and Radioactive Threat Detection (RTD). These technologies offer superior detection of threats including plastic explosives, plastic weapons, illegal drugs, other contraband, dirty bombs and nuclear devices. AS&E offers a complete range of X-ray inspection products including Z Backscatter screening systems, CargoSearch(TM), and ParcelSearch(TM) inspection systems, used for critical detection and security applications to combat terrorism, drug and weapon smuggling, trade fraud, and illegal immigration. AS&E customers include leading governmental agencies, border authorities, military bases, airports and corporations worldwide, including the U.S. Department of Homeland Security, U.S. Department of Defense, U.S. Customs and Border Protection, Royal Thai Police, HM Customs & Excise (U.K.) and Hong Kong Customs. For more information on AS&E products and technologies, please visit www.as-e.com.

Safe Harbor Statement. The foregoing press release contains statements concerning AS&E's financial performance, markets and business operations that may be considered "forward-looking" under applicable securities laws. AS&E wishes to caution readers of this press release that actual results might differ materially from those projected in any forward-looking statements. Factors which might cause actual results to differ materially from those projected in the forward-looking statements contained herein include the following: significant reductions or delays in procurements of the Company's systems by the United States and other governments; disruption in the supply of any source component incorporated into AS&E's products; litigation seeking to restrict the use of intellectual property used by the Company; potential product liability claims against the Company; global political trends and events which affect public perception of the threat presented by drugs, explosives and other contraband; global economic developments and the ability of governments and private organizations to fund purchases of the Company's products to address such threats; and the potential insufficiency of Company resources, including human resources, capital, plant and equipment and management systems, to accommodate any future growth, and future delays in federal funding. These and certain other factors which might cause actual results to differ materially from those projected are detailed from time to time in AS&E's periodic reports and registration statements filed with the Securities and Exchange Commission, which important factors are incorporated herein by reference. AS&E undertakes no obligation to update forward looking statements to reflect changed assumptions, the occurrence of unanticipated events, or changes in future operating results, financial condition or business over time.