U.S.A. responsibilities for the XMM-Newton RGS

In the U.S.A. the Columbia Astrophysics Laboratory (CAL) of Columbia University has overall responsibility for the development and unit testing of the RGS Grating Arrays (RGAs). In this task they are assisted by the Lawrence Livermore National Laboratory.

Shown below is a top view of one of XMM-Newton's two RGS Grating Arrays (picture courtesy of Columbia University).

RGS Grating Array