Performance of Aluminium as Substitute for Be as Si (Li) Detector Window for Radioisotope Induced Energy Dispersive X-ray Florescence

Daisy Joseph1,􀀍􀀍􀀍􀀍, K.G. Bhushan2, Uday Sule2 and S.M. Rodrigues2

1Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India

2Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India

Abstract

Generally, a thin Be (1-2 mil) is used as a window for Si (Li) detector used for X-ray spectroscopy. When Be undergoes wear and tear and ruptures it can be replaced by an aluminium window. In a case we have replaced a broken Be window with an Al window of thickness 450 μ and 15 mm diameter and have seen an excellent performance of the detector. Samples of biological significance (bacterial cells) and foils of double layer thickness were analyzed using the Am241 radioisotope source as excitation source and Al window detector and the elements were detected and seen well separated.

Keywords

Aluminium, Be, Window, EDXRF, Si (Li) detector

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  • Asian J. Mat. Chem. /
  •  2016 /
  •  1(1) /
  •  pp 11-13
  • DOI:http://dx.doi.org/10.14233/ajmc.2016.AJMC-P1