Inorganic scintillation detectors for < sup > 192 < /sup > Ir brachytherapy.
Inorganic scintillation detectors for <sup>192</sup>Ir brachytherapy.
Phys Med Biol. 2019 Sep 06;:
Authors: Kertzscher G, Beddar S
Abstract
Many brachytherapy (BT) errors could be detected with real-time in vivo dosimetry technology. Inorganic scintillation detectors (ISDs) have demonstrated promising capabilities for BT, because some ISD materials can generate scintillation signals large enough that (a) the background signal emitted in the fiber-optic cable (stem signal) is insignificant, and (b) small detector volumes can be used to avoid volume averaging effects in steep dose gradients near BT sources. We investigated the characteristics of five ISD materials to identify one that is appropriate for BT. ISDs consisting of a 0.26 to 1.0-mm&lt;sup&gt;3&lt;/sup&gt; volume of ruby (Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;:Cr), a mixture of Y&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;:Eu and YVO&lt;sub&gt;4&lt;/sub&gt;:Eu, ZnSe:O, or CsI:Tl coupled to a fiber-optic cable were irradiated in a water-equivalent phantom using a high-dose-rate &lt;sup&gt;192&lt;/sup&gt;Ir BT source. Detectors based on plastic scintillators BCF-12 and BCF-60 (0.8 mm&lt;sup&gt;3&lt;/sup&a...
Source: Physics in Medicine and Biology - Category: Physics Authors: Kertzscher G, Beddar S Tags: Phys Med Biol Source Type: research
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