Daisy Joseph

Dr. Daisy Joseph is a Scientific Officer of India's premier nuclear research facility, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai. Dr. Joseph completed her Ph.D. in 2007 and is proficient in Radioisotope induced Energy Dispersive X-ray fluorescence-(EDXRF), Proton induced X-ray Emission (PIXE) and synchrotron based EXAFS and XANES. She has set up the PIXE facility at FOTIA-Folded Tandem Ion Accelerator at Van de Graff, BARC, Trombay, Mumbai. Dr. Joseph has carried out measurements of K X-ray production cross–sections of various elements using Proton energy of 3-5 MeV from FOTIA, studied the effects of chemical environments on X-ray intensity ratios of 3D elements such as Cu, Mn, Cr and U compounds by photon, proton and heavy ion excitation and synchrotron probes. For the past two decades, she has had hands-on experience in EDXRF using radioisotopes such as 55Fe, 109Cd, 241Am and semiconductor detectors such as Si (Li), HPGe and Peltier cooled Si(Li) detectors and its associated electronics, as well as in data acquisition systems such as PC based MCA. Dr. Joseph uses these techniques to characterize a wide variety of materials such as superconductors, ferroalloys, monazites, rare earth materials and cruds (corrosion products) from thermal reactors. Dr. Daisy Joseph has around 103 publications in peer reviewed journals and proceedings and has authored a chapter in the book titled 'Advanced Trace Analysis.” She has spoken at 10 invited talks and has chaired a session at NTAC, Kochi in February 2017.