PULSE BEAM HEATING OF THE SOLAR ATMOSPHERE

A response of the solar atmosphere to pulse beam heating is computed using a 1-D hybrid code. While the hydrodynamic part of this program is used to compute the atmospheric response, the pulse beam decelerated by electron-electron and electron-neutral hydrogen interactions in the dense layers of the solar atmosphere is represented by particles. In this new description of an electron beam, the finite transit time of accelerated electrons in the flare loops is taken into account and the hard X-ray radiation is computed directly. Four different pulse beams are considered and their effects are compared. Moreover, the return current losses of the pulse beam are discussed.