Company:  AMERICAN SCIENCE & ENGINE ... (ASEI)
Form Type:  8-K
Filing Date:  9/26/2011 
CIK:  0000005768 
Address:  C/O AS&E
829 MIDDLESEX TURNPIKE 
City, State, Zip:  BILLERICA, Massachusetts 01821 
Telephone:  (978) 262-8700 
Fiscal Year:  03/31 
Last Trade
Last Trade: 
$60.01   		Change: 
-0.13 (-0.22%)  
Trade Time: 
09:30 AM EST   		Market Cap: 
$489.44M
Description of Business
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  FORM 8-K
    SECTION 8 OTHER EVENTS
      ITEM 8.01. OTHER EVENTS.
    SIGNATURE
    EXHIBIT INDEX
  EXHIBIT 99.1
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