HRRL Positron Rotating W Target
The first version of a positron converter target will be designed to distribute the heat load by rotating the tungsten target.
Calculate for 1 mm and 2 mm thick Tungsten
Look for Tungsten disks to attach to brushless motor and fit into beam pipe
Properties of Tungsten
Melting Point =
Heat Capacity =
Heat loss due to radiation ( \sigma T^4)
Tungsten Temperature as a function of heat load
The Tungsten heats up when an MeV energy electron impinges its surface. The imperfect vacuum inside the beam pipe does allow some radiative cooling.
Conduction and Radiation
- IAC beamline pressure =