Catalogue of X-ray photon fluence spectra of electronic brachytherapy device Esteya manufactured by Elekta

The catalogue was compiled from suitable data available in literature and from the data measured or created by the project "18NRM02 PRISM-eBT" (Primary standards and traceable measurement methods for X-ray emitting electronic brachytherapy devices; http://www.ebt-empir.eu/) of the European Metrology Programme for Innovation and Research (EMPIR). The main goal of the catalogue was to develop a set of harmonised reference X-ray qualities denoted as “eBT equivalent” that would be established for in-laboratory activities by the X-ray tubes usually available for calibration in calibration laboratories, but the tube voltage and the filter are specifically selected to simulate the energy spectrum of the corresponding eBT radiation as closely as possible at the reference point. The catalogue contains the following spectra: 1) Measured spectrum in air, 100 cm source-to-detector distance<br> 2) Measured spectrum in air, 150 cm source-to-detector distance<br> 3) eBT-equivalent spectrum in air, 150 cm source-to-detector distance, calculated by SpekCalc software<br> 4) Intermediate results for eBT-equivalent spectrum in air, 150 cm source-to-detector distance, realized at VSL"本目录基于公开文献中的可用数据，以及欧洲计量创新与研究计划（European Metrology Programme for Innovation and Research, EMPIR）的项目“18NRM02 PRISM-eBT”（X射线发射式电子近距离放射治疗设备的基准标准与可溯源测量方法；http://www.ebt-empir.eu/）所测量或生成的数据编制而成。本目录的核心目标是构建一套统一化的参考X射线辐射质，命名为“eBT等效辐射质”，供校准实验室中常用X射线管开展实验室内部校准活动使用；同时通过精准选择管电压与滤片，在参考点处尽可能逼真地模拟对应eBT辐射的能谱特征。本目录涵盖如下能谱数据： 1) 源探测器距100 cm条件下的空气中实测能谱 2) 源探测器距150 cm条件下的空气中实测能谱 3) 经SpekCalc软件计算得到的、源探测器距150 cm条件下的空气中eBT等效能谱 4) 由VSL实现的、源探测器距150 cm条件下的空气中eBT等效能谱的中间结果