<P> The Chart of the Nuclides, containing information such as masses, relative abundances, half - lives, neutron cross sections, and decay properties for more than 3,100 nuclides and 580 isomers was developed at KAPL . This chart is a necessity for students and professionals in nuclear physics, chemistry, engineering, and medicine around the world . The Chart has been compiled, edited and periodically revised by KAPL scientists since 1956 . </P> <P> KAPL operates two sites in New York, the Knolls site in Niskayuna and the Kenneth A. Kesselring site in West Milton . Niskayuna is the primary site for the KAPL, focusing on the design and development of naval propulsion plants and reactor cores . The West Milton site operates land - based prototypes of shipboard reactor plants . This site is also used to train officers and enlisted personnel for the U.S. Navy's fleet of nuclear - powered vessels . KAPL employs more than 2,600 people at these sites and others, mostly shipyards in the states of California, Connecticut, Hawaii, Maine, Virginia, and Washington . </P> <P> In 2006 KAPL achieved full remediation of the S1C Prototype Reactor site located in Windsor, Connecticut . The S1C site remedial action was declared to be complete by the Connecticut Department of Environmental Protection in October 2006 . KAPL had taken over operation of the S1C Prototype in the 1960s after expiration of the Navy's original contract with Combustion Engineering . </P> <P> KAPL, as well as Bettis Atomic Power Laboratory, is managed and operated by Bechtel Marine Propulsion Corporation, a wholly owned subsidiary of Bechtel National Incorporated . The previous operating contractor of KAPL was Lockheed Martin . KAPL's original contractor was General Electric . KAPL was one of the first laboratories to conduct research on obtaining usable power from nuclear reactors . </P>

Knolls atomic power laboratory chart of the nuclides