Method of detection and spectrometry of charged particles produced in a superstrong electromagnetic field based on their transport by the magnetic field of a coaxial line

This paper presents methods of detection and spectrometry of high-energy electrons and positrons produced in the interaction of laser radiation with matter and vacuum. The methods are based on charged particle transport in the magnetic field of a hollow coaxial line through which a direct current flows. The methods make it possible to detect particles at a distance of several dozen meters from the source with retention of close to 100% collection efficiency and provide efficient detector protection from background radiation.