The transverse drift electromagnetic filter for PTOLEMY

PTOLEMY is an experiment for detecting neutrinos, produced in the early moments of the Big Bang, captured on tritium targets. A new concept of the transverse drift filter is developed to enable a precision analysis of the energy spectrum of electrons near the tritium β-decay endpoint. This talk will present the first realization of the required magnetic field with an iron magnet and the low field optimization on the endpoint electron transport. The PTOLEMY transverse drift filter run "in reverse" is a new particle accelerator for injection charged particles into a high magnetic field region with potential use for plasma heating.