Portrait image of John Carruth

John W Carruth

Science Support Group Leader

OAK RIDGE NATIONAL LABORATORY, Science Support Group Leader Oak Ridge, TN (October 2019 - Present)

  • Leader of group of 5-10 Scientific Associates in charge of science support across the HFIR Neutron Scattering Instrument Suite


OAK RIDGE NATIONAL LABORATORY, Scientific Associate Oak Ridge, TN (August 2009 – October 2019)

  • Primary beamline operations staff member for multiple neutron scattering instruments across two facilities including NOMAD (2009-2015), CNCS (2014-2015), CORELLI (2015-2016), FIE-TAX (2016-2020) and PTAX (2016-2020). Secondary contact for POWGEN (2011-2013), HYSPEC (2015-2016), ARCS (2018), SEQUOIA (2018), TAX (2016-2019) and CTAX (2016-2019)
  • Created and enforced procedures for safe and reliable operation of beamlines by staff and users
  • Coordinator between instrument staff and support groups
  • Troubleshooting of beamline subsystems, including detectors, sample environment, motors, vacuum, data acquisition, etc.
  • Development of PyDAS system and scripting for beamline automation and automatic logbook entry
  • As part of a rotating team of SAs, provided 24/7 user support for multiple beamlines
  • Head of multiple instrument commissioning and upgrade projects


THOMPSON CANCER SURVIVAL CENTER, Research Assistant Knoxville, TN (June 2008 - January 2009)

  • Studied radiation dose rates of Volumetric Modulated Arc Therapy
  • Experience with Pinnacle radiation treatment planning software
  • Dosimetry of post-radiation anthropomorphic targets
  • Research on adaptive radiation therapy utilizing MATLAB to predict patient biological changes over time

      UNIVERSITY OF TENNESSEE Knoxville, TN (2003-2009)

  • Master of Science, Physics.  Minor: Nuclear Engineering (2009)
  • Bachelor of Science, Physics (2007)

Administration: Operating procedures, Materials management, Project Management

Network Systems: Windows, Linux/UNIX, Data Handling & Storage

Laboratory: Hazardous sample handling (nano, pyrophoric, air sensitive), Radiological Work, Glove box

Programming/Data Acquisition: Python, LabVIEW, MATLAB, C, SPICE, CSS/EPICS

Detectors/ElectronicsPMT, He3, HV systems, NIM/CAMAC, magnetic fields, dosimetry

Neutron Instrumentation: Choppers, motors, shielding, vacuums, Cryomagnets, Furnaces, Levitators

View All