... KET1
Kinetic Electron Telescope 
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... emissions2
$\delta $-rays are electrons emitted along the track of particles with sub-relativistic velocity. $\delta $-ray emission is proportional to Z2 of the incoming particle. 
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... predictions3
Computed with the help of Jacques Engelmann from CEA-Saclay. 
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... successfully4
Special thanks to the CIDT team in Vilspa for accepting such unusual configuration. 
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