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The XRS microcalorimeter spectrometer at the Livermore electron beam ion trap

Boyce, K. R.; Kilbourne, C. A.; Porter, F. S. +9 more

NASAs X-ray spectrometer (XRS) microcalorimeter instrument has been operating at the electron beam ion trap (EBIT) facility at Lawrence Livermore National Laboratory since July of 2000. The spectrometer is currently undergoing its third major upgrade to become an easy to use and extremely high-performance instrument for a broad range of EBIT exper…

High-resolution spectroscopy of K-shell praseodymium with a high-energy microcalorimeter

Boyce, K. R.; Kilbourne, C. A.; Porter, F. S. +7 more

We present a measurement of the K-shell spectrum of He-like through Be-like praseodymium ions trapped in the Livermore SuperEBIT electron beam ion trap using a bismuth absorber pixel on the XRS/EBIT microcalorimeter. This measurement is the first of its kind where the n=2 to n=1 transitions of the various charge states are spectroscopically resolv…