Dr. Lawrence T. Hudson is a physicist at the National Institute of Standards and Technology (NIST) with a distinguished career spanning NASA, academia, and government service. He has made significant contributions to x-ray metrology, developing custom-calibrated spectrometers for various exotic x-ray sources. Hudson’s work has produced over 120 publications and has been cited over 100 times annually.
Hudson has led projects to measure absolute x-ray wavelengths at the femtometer level, supporting high-accuracy transfer standards in fundamental and applied spectroscopy experiments worldwide. His work has been recognized in the SI 9th edition (2019) and has led to collaborations with NIST’s energy-dispersive x-ray detection advances.
After the 2001 anthrax attacks, Hudson assisted in designing experiments for the White House Task Force on Mail Irradiation, resulting in the protocol still used to sanitize government mail with industrial x-ray sources. He currently leads NIST projects developing national and international measurement standards for x-ray and gamma-ray security screening systems, supported by new documentary standards, test methods, and technical guidance documents.
Source: https://www.nist.gov/people/lawrence-t-hudson
Keywords: x-ray, metrology, security
