Speaker
Description
The Space Application of Timepix Radiation Monitor (SATRAM) was launched into space in May 2013 onboard the Proba-V satellite of the European Space Agency into a low Earth orbit (820km, Sun-synchronous) and it has been operating ever since. The SATRAM module is equipped with a Timepix chip featuring a 300 μm-thick silicon sensor divided into a 256 x 256 pixel matrix with 55 μm pixel pitch. Several new investigations have been performed. First, the behavior of noisy pixel has been studied to assess the stability and resilience of the detector to the harsh space environment. Although degradation has been observed, the data quality has not been significantly affected over the years. Furthermore, a Bayesian deconvolution method was applied to extract a proton spectrum from the SATRAM data. For this purpose, data from the South Atlantic Anomaly region were selected, and comparisons with models and other measurements were conducted. Lastly, a new convolutional neural network was designed. Unsupervised pre-training was used to improve the accuracy of the particle species identification between electrons and protons in the SATRAM data.
