Investigating the inverse square law with the Timepix hybrid silicon pixel detector: a CERN@school demonstration experiment
Investigating the inverse square law with the Timepix hybrid silicon pixel detector: a CERN@school demonstration experiment
复制标题
使用 Timepix 混合硅像素探测器研究平方反比定律：CERN@school 演示实验
DOI：
10.1088/0031-9120/48/3/344
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发表时间：
2013
影响因子：
--
通讯作者：
B. Parker
中科院分区：
文献类型：
--
作者：
T. Whyntie;B. Parker
Timepix混合硅像素探测器已被用于研究点源辐射的平方反比定律，作为CERN@school探测器套件能力的演示。所描述的实验使用Timepix探测器来探测241 Am放射源在许多不同距离处发射的伽马射线。使用Pixelman软件套件和CERN的ROOT分析软件收集、处理和分析每个距离的数据集。平方反比定律近似很好地描述了数据，因此通过以下实验，学生可以将物理课程的相关元素与前沿物理研究联系起来。此外，检测器几何形状的分析模型用于提供数据的可比描述，而无需近似。这样的练习是典型的推广活动，可以为学生和教师超越物理课程并与CERN@school进行自己的研究铺平道路。
The Timepix hybrid silicon pixel detector has been used to investigate the inverse square law of radiation from a point source as a demonstration of the CERN@school detector kit capabilities. The experiment described uses a Timepix detector to detect the gamma rays emitted by an 241Am radioactive source at a number of different distances. Datasets for each distance were collected, processed and analysed using the Pixelman software suite and CERN’s ROOT analysis software. The inverse square law approximation describes the data well, and so by following the experiment students can make the connection between the relevant elements of the physics curriculum and cutting-edge physics research. Additionally, an analytic model of the detector geometry is used to provide a comparable description of the data without the need for approximations. Such an exercise is typical of the kind of extension activity that can pave the way to students and teachers going beyond the physics curriculum and performing their own research with CERN@school.