布里奇曼培养的 (Cd,Mn) Te和 (Cd,Mn) Te,Se):对X和马探测器的适用性进行比较
Aneta Masłowska1, Dominika M Kochanowska1, Adrian Sulich1
1Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, 02-668 Warsaw, Poland.
Sensors (Basel, Switzerland)
|January 23, 2024
概括
布里奇曼种植的基 Telluride ((Cd,Mn) Te) 与基 Telluride Selenide ((Cd,Mn) ((Te,Se)) 相比,显示出作为室温X射线和玛射线探测器材料的优越性能. (Cd,Mn) Te提供了更好的晶体质量和检测器效率.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 核仪器仪表 核仪器仪表 核仪器仪表
背景情况:
- 开发高效的室温X射线和玛射线探测器对于各种应用至关重要,包括医疗成像和安全查.
- 甲 Telluride ((Cd,Mn) Te) 和甲 Telluride Selenide ((Cd,Mn) ((Te,Se)) 正在作为这种探测器的潜在半导体材料进行研究.
- 布里奇曼晶体生长方法用于生产这些材料的大面积单晶.
研究的目的:
- 评估布里奇曼种植的 (Cd,Mn) Te和 (Cd,Mn) ((Te,Se) 对室温X射线和玛射线检测的适用性.
- 为了比较这两种材料的结构,机械,光学和辐射检测特性.
- 为了识别用于探测器应用的性能优越的材料.
主要方法:
- 使用布里奇曼方法的晶体生长.
- 描述技术包括低温光发光,蚀刻,X射线衍射 (XRD) 和欧米茄扫描.
- 用两种材料制造的像素探测器的光谱评价.
- 使用Co-57马射线源进行性能评估.
主要成果:
- 无论是 (Cd,Mn) Te还是 (Cd,Mn) ((Te,Se) 都产生了面积大的单晶.
- (Cd,Mn) Te具有较窄的欧米茄扫描宽度,表现出更好的单晶特性,而 (Cd,Mn) ((Te,Se) 则显示出更多具有较大的误导角度的块状结构.
- 像素化 (Cd,Mn) Te探测器表现出卓越的性能,在122 keV的Co-57马峰上获得14%的FWHM,与 (Cd,Mn) ((Te,Se) 相比.
结论:
- 布里奇曼种植的 (Cd,Mn) Te 是一个比 (Cd,Mn) (Te,Se) 更有前途的材料用于室温X射线和马射线探测器.
- (Cd,Mn) Te的优越性能归因于其更好的晶体质量和更少的结构缺陷.
- (Cd,Mn) ((Te,Se) 探测器的性能受到深陷发光和显著的晶体误导的限制.
相关概念视频
Gas Chromatography: Types of Detectors-II
376
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
376
Imaging Studies II: Positron Emission Tomography and Scintigraphy
122
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET
122
Gas Chromatography: Types of Detectors-I
428
There are different types of detectors used in gas chromatography, each with its own specific properties that make it suitable for detecting certain types of analytes. The most commonly used detectors in GC are thermal conductivity detector (TCD), flame ionization detector (FID), and electron capture detector (ECD).
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
428


