Department of Engineering Physics, University of Gaziantep, Gaziantep, Turkey.
Luminescence. 2023 Mar;38(3):318-325. doi: 10.1002/bio.4452. Epub 2023 Feb 15.
Pumice is a low-density, light-coloured volcanic rock (igneous rock) formed when the magma from a volcanic eruption is suddenly cooled. It has a porous structure and can be different colours and have different densities. Pumice stone, unlike other rock, does not sink in water because it has a low density. In the present study, the thermoluminescent (TL) dosimetric characteristics, such as the dose-response, TL signal fading as a function of storage time, heating rate, and reusability of pumice collected on the Mediterranean coast were investigated. From this study, it was concluded that the pumice stone showed TL properties with a TL glow curve including an obviously wide peak at ∼200°C. A wide linear dose-response region up to 144 Gy, low fading of the TL signal when it was kept in a dark room for a long time, and poor reusability properties were observed for dosimetry use.
浮石是一种低密度、浅色的火山岩（火成岩），由火山喷发的岩浆突然冷却形成。它具有多孔结构，颜色和密度各不相同。与其他岩石不同，浮石不会在水中下沉，因为它的密度低。在本研究中，研究了在地中海沿岸采集的浮石的热释光（TL）剂量学特性，如剂量响应、随储存时间变化的 TL 信号褪色、加热率和可重复性。从这项研究中可以得出结论，浮石表现出 TL 特性，TL 发光曲线包括一个明显的宽峰在约 200°C。观察到用于剂量测定的宽线性剂量响应区域高达 144Gy、TL 信号在长时间存放在暗处时的低褪色以及差的可重复性。
