Transport of a high brightness proton beam through the Munich tandem accelerator
Titel Konferenzpublikation:
Proceedings of the 14th International Conference on Nuclear Microprobe Technology & Applications 2014
Zeitschrift:
Nuclear Instruments and Methods in Physics Research Section B
Jahrgang:
348
Heftnummer:
0
Konferenztitel:
International Conference on Nuclear Microprobe Technology and Applications (14., 2014, Padua)
Tagungsort:
Padua
Jahr der Konferenz:
2014
Jahr:
2015
Seiten von - bis:
34-42
Sprache:
Englisch
Stichwörter:
Proton micro beam ; Beam brightness ; Multicusp source ; Beam transport ; Ion optics
Abstract:
Basic requirement for ion microprobes with sub-μm beam focus is a high brightness beam to fill the small phase space usually accepted by the ion microprobe with enough ion current for the desired application. We performed beam transport simulations to optimize beam brightness transported through the Munich tandem accelerator. This was done under the constraint of a maximum ion current of 10 μA that is allowed to be injected due to radiation safety regulations and beam power constrains. The main influence of the stripper foil in conjunction with intrinsic astigmatism in the beam transport on beam brightness is discussed. The calculations show possibilities for brightness enhancement by using astigmatism corrections and asymmetric filling of the phase space volume in the x- and y-direction. «
Basic requirement for ion microprobes with sub-μm beam focus is a high brightness beam to fill the small phase space usually accepted by the ion microprobe with enough ion current for the desired application. We performed beam transport simulations to optimize beam brightness transported through the Munich tandem accelerator. This was done under the constraint of a maximum ion current of 10 μA that is allowed to be injected due to radiation safety regulations and beam power constrains. The main... »