JPU was founded by Brent D. Murphy. Brent was the Founder and President of Advanced Radiotherapy Consulting, Inc., (ARC), Founder of ARETE Medical Physics, and Founder of Ascend Medical Physics. ARC was the premiere trainer in the field of Radiation Oncology. ARETE Medical Physics established a high standard of Medical Physics and Medical Dosimetry Services throughout the U.S.. Ascend Medical Physics is the proven leader in Linac Commissioning in the world. ARC, ARETE, and ASCEND merged to form Global Physics Solutions, Inc (GPS). GPS was the largest Medical Physics Group in the U.S. and was acquired in CY2009 to form Landauer Medical Physics.