Fabrication of Nanoscale Cesium Iodide (CsI)Scintillators for High-Energy Radiation Detection

NCUTIR > College of Engineering > Department of Mechanical Engineering > 【機械工程系】期刊論文 > Item 987654321/5820

Please use this identifier to cite or link to this item: http://ir.lib.ncut.edu.tw/handle/987654321/5820

Title:	Fabrication of Nanoscale Cesium Iodide (CsI)Scintillators for High-Energy Radiation Detection
Authors:	Chen, Chih Yuan Hun, Chien Wan Chen, Shih-Fan Chen, Chien Chon Lin, Jin Shyong Johnson, Shardai S. Noel, Niyoyankunze Juliely, Niyogushima Luo, Zhiping
Contributors:	圖書館
Keywords:	CESIUM IODIDE (CSI) NANO SCINTILLATOR THERMODYNAMICS X-RAY RADIATION DETECTION
Date:	2015-03
Issue Date:	2016-10-14 09:26:23 (UTC+8)
Publisher:	American Scientific Publishers
Abstract:	The CsI-based scintillators have been widely used for X- or gamma-ray detections. It has been known that columnar scintillators favor the detections with higher efficiency and spatial resolution. In this paper, we report a facile and low-cost method to fabricate submicron nanoscale CsI columns. We integrated the thermodynamic calculations, positive chamber design, mold design, electrochemical bath design, anodization process, and solidification techniques to fabricate such submicron CsI columns. When the CsI melt is confined to AAO channels with a high aspect ratio, stable CsI columns solidified with smooth surfaces, and free of dendrites or grain boundaries. Different solidification approaches have been attempted, including mechanical injection in vacuum under a negative pressure, injection at 1 atm, 3 atm and 25 atm using Ar gas only, and mechanical injection with 1.6 atm Ar pressure. The mechanical injection or high-pressure Ar injection at 25 atm produced good filling of CsI melt into AAO channels. Such CsI columns inside the smooth AAO walls enable the high-energy radiation detection with high light emission for pixelated scintillator applications.
Relation:	Reviews in Nanoscience and Nanotechnology
Appears in Collections:	[Department of Mechanical Engineering] 【機械工程系】期刊論文

Files in This Item:

There are no files associated with this item.

View Licence

Loading...