  We have demonstrated the use of the bremsstrahlung radiation in energy
dispersive x-ray fluorescence technique as a tool to perform non-destructive
elemental analysis of solid samples employed in inter-disciplinary science
research. The bremsstrahlung radiation can be taken from a small, portable,
transmission type x-ray generator. As our knowledge goes, till date, this is
the first attempt to generate bremsstrahlung spectrum theoretically from a
portable transmission type x-ray generator and compared it with the actual
observation. Theoretically generated bremsstrahlung spectra are also found to
be in good agreement with the experimentally observed spectra obtained with
various operating anode voltages of the x-ray generator. A computer program has
been developed utilizing few atomic parameters to obtain the elemental
concentrations in the sample by a single run using the whole bremsstrahlung.
The knowledge of incoming x-ray flux, geometry of experimental arrangements is
not required in this technique. To validate the technique, we have taken two
samples: an Indian one rupee coin of the year 2000 and a NIST made brass
sample, whose compositions are well known. We used these samples to expose to
the bremsstrahlung radiation, produced by the operating anode voltages 20, 25,
and 30 KV. The relative concentrations of different elements are determined,
which is in good agreement with the earlier results.

Instrumentation and Detectors;Atomic Physics