American Science and Engineering, Inc. Receives $3.4 Million Order from Middle East Customer for Gemini Parcel Systems.

Customer Reorders Significant Quantity of Gemini for Checkpoint Security

BILLERICA, Mass. -- American Science and Engineering, Inc. (NASDAQ: ASEI) (AS&E([R])), a leader in X-ray detection technology, announced today the receipt of $3.4 million follow-on order from a Middle Eastern customer for a significant quantity of Gemini parcel inspection systems. The order includes service, parts and warranty.

"We are pleased to receive this second order from our Middle Eastern client," said Anthony Fabiano, President and CEO. "They have seen firsthand the benefits of superior threat detection from Gemini's multi-technology platform, and will add additional Gemini systems for checkpoint security at their facilities. We believe -- and several of our customers are confirming -- that Gemini's combination of proprietary Z Backscatter technology and dual-energy transmission X-ray provides the most attractive parcel system value proposition available on the market."

About Gemini([TM])

Gemini is the first conventional parcel inspection system on the market to combine dual-energy transmission and proprietary Z([R]) Backscatter([TM]) 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. Gemini's unique capability to detect both metallic and non-metallic threats -- even in cluttered environments -- makes it an invaluable inspection tool for security officials.

About AS&E([R])

American Science and Engineering, Inc. (AS&E) is the leading worldwide supplier of innovative X-ray inspection systems. With over 45 years of experience in developing advanced X-ray security systems, the Company's product line utilizes a combination of technologies, including patented Z Backscatter technology, Radioactive Threat Detection (RTD), high energy transmission and dual energy transmission X-ray. These technologies offer superior X-ray threat detection for plastic explosives, plastic weapons, liquid explosives, dirty bombs and nuclear devices. AS&E's complete range of products include cargo inspection systems for port and border security, baggage screening systems for facility and aviation security, and personnel and passenger screening systems. AS&E systems protect high-threat facilities and help combat terrorism and trade fraud, drug smuggling, weapon smuggling, and illegal immigration and people smuggling. AS&E customers include leading government agencies, border authorities, military bases, airports and corporations worldwide, including the U.S. Department of Homeland Security (DHS), U.S. Department of Defense (DoD), U.S. Customs and Border Protection (CBP), Royal Thai Police, HM Revenue & Customs (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.