Project 8 Phase III Design Progress*

Project 8 is a tritium endpoint experiment to measure the mass of the neutrino using
the technique of Cyclotron Radiation Emission Spectroscopy (CRES).  Early phases
(I and II) of Project 8 demonstrated CRES in small volumes confined by microwave
waveguides.  An immediate goal for future phases is to scale the detection scheme
in size to accommodate sufficient tritium source intensity for a competitive neutrino
mass measurement.  We present progress on the conceptual design for CRES experiments
conducted in a free space radiation environment, focusing on simulation work that 
will guide the development of advanced signal processing and data acquisition 
techniques integral to Project 8.  Details of electron trapping and radiation 
detection schemes are discussed in terms of feasibility and their implications for 
the third phase of Project 8, intended to be competitive with current
limits on neutrino mass from the Mainz and Troitsk experiments (m_ν ≤ 2 eV).