CERN@school: Attenuation of Radiation sample dataset

2017-01-26T05:17:54Z (GMT) by Tom Whyntie Azaria Coupe
<p>This dataset was obtained by A. Coupe (SEPnet intern, CERN@school) with a Timepix hybrid silicon detector as part of an experiment to measure the attenuation of beta particles from Strontium-90 by sheets of aluminium with varying thicknesses. The experiment and its results are described in (Whyntie et al. 2015).<br></p> <p>The detector settings can be found in accompanying .dsc files. The distance from source to detector was 9.3 cm, the distance from source to aluminium was 4.0 cm.</p> <p>Inside the zip file, the data for each thickness of aluminium is saved in a file with the thickness as its folder name.</p> <p>Data is stored in dataXXX.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.</p> <p>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 (ToT) mode, where it measures the charge for the amount of time it is above the threshold value.</p><p>Code for analysing the data can be found at the GitHub repository listed below.<br></p><p><i>This work was supported by the UK Science and Technology Facilities Council (STFC) via grant numbers ST/J000256/1 and ST/N00101X/1, as well as a Special Award from the Royal Commission for the Exhibition of 1851.  The authors wish to thank SEPnet for supporting A. Coupe's summer internship with CERN@school.</i></p><p><b>References</b><i><br></i></p><p>Whyntie, T. et al. "<i>CERN@school: demonstrating physics with the Timepix detector</i>", Contemporary Physics doi:10.1080/00107514.2015.1045193 (2015)<br></p>