The Army Reactors Branch formed the guidelines for the project .
The Army Reactors Branch contracted with Argonne National Laboratory to design , build , and test a prototype reactor plant to be called the Argonne Low Power Reactor ( ALPR ) .
The Army Reactors Branch formed the guidelines for the project and contracted with Argonne National Laboratory to design , build , and test a prototype reactor plant to be called the Argonne Low Power Reactor ( ALPR ) .