PREM students outfitting and upgrading CHESS x-ray beamlines

CHESS is fortunate to have three graduate students visiting from Puerto Rico. Supported by the NSF-PREM CiE2M – the Center for Interfacial Electrochemistry of Energy Materials – a partnership of The University of Puerto Rico, Rio PiedrasCampus (UPRRP), Universidad Metropolitana (UMET) and Universidad del Turabo (UT), and CHESS. 

This group forms an educational and innovative collaborative materials research effort to bring together a diverse and talented scientific community with experience and expertise in electro-chemistry, solid-state and inorganic chemistry, and synchrotron-based techniques to character energy materials in operando conditions at CHESS.  
The students have become an integral part of the team building out and commissioning new X-ray beamlines at the upgraded CHESS facility. New to them was learning good ultra-high vacuum (UHV) practices, using tools like torque wrenches to set vacuum seals, and using an RGA to find chemical contamination in optics boxes (“was really interesting!”). They have also studied the design of beamline components in each sector: apertures, safety bricks and power filters required to deliver X-rays to experimental hutches.
Melissa’s favorite activity was assembling components for Sector 4 X-ray monochromator. “It is like a puzzle to solve. There are many different plates and bolts and it is a real challenge to assemble based on the 3D CADmodel. There is a correct order to do things. It was fun to install water cooled components in the vacuum chamber,” she says.

>Read more on the CHESS website

Image: Brenda, Joesene, Melissa, and Alan Pauling (right) of CHESS proudly display their ultra-high vacuum assembly and installation in the Sector 2 cave of the new CHESS beamline. The students have worked hand-in-hand with CHESS staff to assemble, test and prepare the X-ray beampipes in three different sectors of CHESS.