3. American Science and Engineering is a U.S.-based supplier of X-ray inspection and other detection solutions, with a global customer base. The company reported revenue growth of 32% year over year to $80.1 million in the September quarter. Net income rose 37% to $14.7 million, ensuring earnings per share of $1.59 for the quarter. Order backlog as of September 2010 rose 36% to $254 million. The company declared a cash dividend of 30 cents a share. Revenue and net income during the last two quarters grew 16% and 19%, respectively. Michael Kim, analyst at Imperial Capital, increased the estimates and valuation range for 2011 earnings after the September quarter. The stock is trading at five to six times its estimated 2011 earnings.