Energy-Dispersive-X-Ray-Fluorescence analysis (ED-XRF) is a convinient tool for elemental analysis. The atoms in the
sample material, which could be any solid, powder or liquid, are excited by X-Rays emitted from a X-Ray tube.
All element specific X-Ray fluorescence signals emitted by the atoms after the photoelectric ionisation are measured
simultaneously in a fixed mounted semi-conductor detector.
An energy dispersive X-ray fluorescence (EDXRF) spectrometer makes use of the fact that the pulse height of the detector signal is proportional to the X-ray photon energy. Usually a multichannel analyzer is used for display and providing the data. Here each channel counts the number of photons with a certain energy level simultaneously.
The radiation intensity of each element signal, which is proportional to the concentration of the element in the sample, is recalculated internally from a stored set of calibration curves and can be shown directly in concentration units.
EDXRF systems detect elements on the periodic table between atomic numbers 11 (Na) and 92 (U). i Samples can be analyzed non-destructively. Elements in concentrations from as low as a few parts per million to 100% may be analyzed. Accuracy of less than one percent relative error are attainable with comparable reproducibility
The ED-XRF Spectrometer commissioned at the UGC-DAE CSR, Kolkata Centre is the EX-3600 model, procured from M/S Jordan Valley, Israel.
|Element||Na - U|
|Detection Limit||5 - 10 ppm|
|Detector Resolution||143 eV at 5.9 keV|
|Prof. S.C. Santra||Kalyani Univesity|
|Dr. Vipasha Chakraborty||J D Birla|
|Dr. Shaon Roy Chowdhury||W B U T|
|Prof. Anjana Dewanji||I S I|
|Dr. M. Manna||Barasat Government College|
|Mr. M. Aken Singh||Mizoram University|
|Dr. S. Chakrabarti||Calcutta University|
|Prof. Sarmistha RoyChowdhury||Calcutta University|
|Dr. T. Saha||Barasat Govt College|
|Dr. R K Datta||I I T Roorkee|
|Dr. Monisha Chakrabarti||Jadavpur University|
|Dr. A.K.Sen||I I T Roorkee|
|Dr. P. K. Behera||Sambalpur University|
|Dr. P. V. Lakshmi Narayana||Andhra University|
|Mr. Naorem Premananda Singh||Manipur University|
|Dr. Punarbasu Chaudhuri||Calcutta University|
|Dr. H. M. Agawrwal||GB Pant University|
|Dr A. Mukhopapadhyay||Calcutta University|
|Mr. Jay Prakash Rajan||Mizoram University|
|Dr. N. Mohandas Singh||Mizoram University|
|Dr. H. N. Thatoi||CET Bhubaneswar|
|Prof. N . Lakshman Das||Ach. Nagarjuna Uni.|
|Dr. P. Chowdhuri||Calcutta University|
|Dr. S. K. Sarkar||Calcutta University|
|Dr. D Das||B.W.S.U|