Rao, Donepudi Venkateswara and Cesareo, Roberto and Brunetti, Antonio and Gigante, Giovanni Ettore and Takeda, Tohoru and Itai, Yuji and Akatsuka, Takao (2002) A New approach to estimate the geometrical factors, solid angle approximation, geometrical efficiency and their use in basic interaction cross section measurements. The European Physical Journal. Applied Physics, Vol. 20 (1), p. 69-74. eISSN 1286-0050. Article.
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A new approach is developed to estimate the geometrical factors, solid angle approximation and geometrical efficiency for a system with experimental arrangements using X-ray tube and secondary target as an excitation source in order to produce the nearly monoenergetic K α radiation to excite the sample. The variation of the solid angle is studied by changing the radius and length of the collimators towards and away from the source and sample. From these values the variation of the total solid angle and geometrical efficiency is deduced and the optimum value is used for the experimental work.
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