This article is cited in 2 papers

Comparative study of X-ray fluorescence signal collection by collimators of two types

Ya. L. Shabelnikova, M. V. Chukalina

Institute of Microelectronics Technology and High-Purity Materials RAS

Abstract: The response signal collection functions in a confocal setup of the X-ray fluorescence (XRF) tomography have been modeled for a polycapillary collimator and a multichannel collimator fabricated by means of microelectronic technology (MT). The dimensions of the effective collection region for the two types of collimators are compared. For the MT-fabricated device, a fraction of X-ray photons transmitted due to the total external reflection from channel walls has been evaluated. It is shown that, for a proper choice of parameters, the contribution of these photons to the collection function is negligibly small.

Received: 10.01.2012

 English version: Technical Physics Letters, 2012, 38:5, 452–455

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