Strontium Decay Data

Data taken with Timepix hybrid silicon detector to measure the attenuation of beta particles from Strontium-90 in Aluminium of varying thickness. Detector settings can be found in .dsc files alongside data. Distance from source to detector = 9.3cm, Distance from source to Aluminium = 4cm. Inside the zip file, the data for each thickness of aluminium is saved in a file with the thickness as its filename. Data is stored in data.txt files in X,Y,C format, where X is the x-co-ordinate of the hit pixel in the Timepix detector's 256x256 pixel silicon sensor element, Y is the y-co-ordinate of the pixel, and C is the number of counts recorded in the pixel. The counts recorded is equivalent to the charge deposited in the pixel about a predetermined threshold value. The detector is run in Time Over Threshold mode, where it measures the charge for the amount of time it is above the threshold value.本数据集采用Timepix混合型硅探测器（Timepix hybrid silicon detector）采集，用于测量锶-90（Strontium-90）产生的β粒子在不同厚度铝质材料中的衰减特性。探测器的配置参数可在与数据同目录的.dsc文件中查阅。放射源至探测器的距离为9.3厘米，放射源至铝质样品的距离为4厘米。 压缩包内，不同厚度铝样品的对应数据以厚度值作为文件名存储。数据以X、Y、C格式保存在data.txt文件中：其中X为Timepix探测器256×256像素硅传感单元中受击像素的X坐标，Y为该像素的Y坐标，C为该像素记录的计数值。 此处记录的计数值等价于像素内沉积的、超出预设阈值的电荷量。本探测器运行于阈值超过时间（Time Over Threshold）模式，即通过测量电荷信号超出阈值的持续时长来计算沉积电荷量。