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Srinath Rajagopal

Srinath Rajagopal

Senior Research Scientist

Srinath joined NPL in 2007 as a Higher Research Scientist. He started his career as a Research Physicist at Precision Acoustics Ltd in 2005 after completing a Master of Research Degree in Biomedical Engineering from University of Strathclyde. His first degree is also in Biomedical Engineering from Visvesvaraya Technological University, India.

During his time at NPL, Srinath has been involved with, co-developing new calorimetric and solid-state pyroelectric techniques to measure ultrasonic output power and acoustic characterization of tissue-like materials at elevated frequencies relevant to medical imaging, lead international inter-comparison of hydrophone calibration standards (CCAUV.U-K2) and has published/co-authored over 16 papers. In addition to his science role he also led the ultrasound hydrophone calibration service for a period of eight years during which he made significant improvements to the operational efficiency of the service resulting in doubling the number of annual calibrations.

Current interests

Srinath Rajagopal is the lead scientist responsible for the provision and development of traceable ultrasound power standards and its dissemination to the end user as part of the National Measurement System. He provides bespoke hydrophone calibration service to industry up to 100 MHz. He is currently developing a portable photoacoustic source of broadband and high amplitude planar ultrasound field with an aim to improve/enhance calibration range of medical hydrophones up to 100 MHz that is also his PhD topic (part-time), which he is pursuing with Biomedical Ultrasound Group of University College London. He represents the UK on the International Electrotechnical Commission TC87/WG8 Ultrasonics – Field Measurements and is the project leader for hydrophone calibration standard IEC 62127-2.

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