{"title":"光子计数 X 射线事件重建不确定性模型","authors":"L.S. Jones, C. Crews, J. Ivory, A. Holland","doi":"10.1088/1748-0221/19/05/p05017","DOIUrl":null,"url":null,"abstract":"\n Evaluation of detectors for a soft X-ray imaging\n spectrometer has resulted in the need to understand the effect of\n charge spreading on apparent detector noise properties, and\n therefore achievable energy resolution. This paper presents a\n mathematical model for the processes leading to increased\n uncertainty within a simplified X-ray reconstruction process. This\n is a description for additional uncertainty introduced by the\n process of collecting X-ray generated electrons into a region of\n noisy pixels and reconstructing the recorded pixels values back into\n an estimated X-ray energy value. The predictions of the model, and\n preliminary experimental verification are shown.","PeriodicalId":16184,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A model for photon counting X-ray event reconstruction uncertainty\",\"authors\":\"L.S. Jones, C. Crews, J. Ivory, A. Holland\",\"doi\":\"10.1088/1748-0221/19/05/p05017\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n Evaluation of detectors for a soft X-ray imaging\\n spectrometer has resulted in the need to understand the effect of\\n charge spreading on apparent detector noise properties, and\\n therefore achievable energy resolution. This paper presents a\\n mathematical model for the processes leading to increased\\n uncertainty within a simplified X-ray reconstruction process. This\\n is a description for additional uncertainty introduced by the\\n process of collecting X-ray generated electrons into a region of\\n noisy pixels and reconstructing the recorded pixels values back into\\n an estimated X-ray energy value. The predictions of the model, and\\n preliminary experimental verification are shown.\",\"PeriodicalId\":16184,\"journal\":{\"name\":\"Journal of Instrumentation\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2024-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Instrumentation\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1088/1748-0221/19/05/p05017\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Instrumentation","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1088/1748-0221/19/05/p05017","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
摘要
对软 X 射线成像光谱仪的探测器进行评估,需要了解电荷扩散对探测器表观噪声特性的影响,从而了解可实现的能量分辨率。本文针对导致简化 X 射线重建过程中不确定性增加的过程提出了一个数学模型。该模型描述了将 X 射线产生的电子收集到噪声像素区域,并将记录的像素值重建为估计的 X 射线能量值的过程中引入的额外不确定性。图中显示了模型的预测结果和初步的实验验证。
A model for photon counting X-ray event reconstruction uncertainty
Evaluation of detectors for a soft X-ray imaging
spectrometer has resulted in the need to understand the effect of
charge spreading on apparent detector noise properties, and
therefore achievable energy resolution. This paper presents a
mathematical model for the processes leading to increased
uncertainty within a simplified X-ray reconstruction process. This
is a description for additional uncertainty introduced by the
process of collecting X-ray generated electrons into a region of
noisy pixels and reconstructing the recorded pixels values back into
an estimated X-ray energy value. The predictions of the model, and
preliminary experimental verification are shown.
期刊介绍:
Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include.
-Accelerators: concepts, modelling, simulations and sources-
Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons-
Detector physics: concepts, processes, methods, modelling and simulations-
Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics-
Instrumentation and methods for plasma research-
Methods and apparatus for astronomy and astrophysics-
Detectors, methods and apparatus for biomedical applications, life sciences and material research-
Instrumentation and techniques for medical imaging, diagnostics and therapy-
Instrumentation and techniques for dosimetry, monitoring and radiation damage-
Detectors, instrumentation and methods for non-destructive tests (NDT)-
Detector readout concepts, electronics and data acquisition methods-
Algorithms, software and data reduction methods-
Materials and associated technologies, etc.-
Engineering and technical issues.
JINST also includes a section dedicated to technical reports and instrumentation theses.