Problem 1.5 D OB O qp Or qa, V S A charged particle source and detector are placed in magnetic field. (Elementary spectral analyser or energy filter) V is the particle velocity, B is the magnetic field, q is the particle charge, p is the radius of the particle trajectory curvature. D - detector, S - source. The source might emit various particles with a very broad spectrum. The particles move around quarter circular orbits with radius p=7m where the detector registers them. Determine the value of the magnetic field in SI system of units if: 1. The detector registers the protons (mpc2 ~ 938 MeV) with kinetic energies A) 50 Mev B) 3 GeV 2. The detector registers a-particles ( He ) (mac?