Fermilab Summer Students - 2009

Research: I conducted electrostatic simulations of the extraction geometry of the HINS ion source, examining the effect of the the following parameters on the final emittance of the ion source: the angle of the extraction cone (cone angle); the size of the gap between the extraction cone and the source plate (extraction gap); the aperture of the extraction cone (extraction aperture); and the extraction voltage. Four different configurations were ultimately tested in the ion source and we found that the final emittance of the source was significantly decreased by utilizing geometry with a 45 degree cone angle, a 4 mm extraction gap with extraction voltage of 25000 V, and a 3 mm extraction aperture.