A design study for a compact two stage in-flight separator with a high mass resolution and large acceptance

Area of Science:

• Nuclear Physics
• Accelerator Physics

Background:

• Rare isotope beam separators are crucial for studying unstable nuclei and exotic nuclear reactions.
• High-order aberrations from large aperture magnets complicate the collection of rare isotopes.

Purpose of the Study:

• To design a rare isotope beam separator with large angular and energy acceptance.
• To minimize high-order aberrations for improved rare isotope collection.

Main Methods:

• Employed mirror symmetry optics to reduce high-order aberrations.
• Designed the separator for the specific separation of Tin-132 (132Sn) produced from Uranium-238 (238U) and Lead (Pb) reactions.

Main Results:

• Achieved a large energy acceptance of approximately 8%.
• Obtained a horizontal angular acceptance of 60 mrad and a vertical acceptance of 130 mrad.
• Successfully minimized high-order aberrations through the symmetric optical design.

Conclusions:

• The designed rare isotope beam separator effectively compensates for aberrations.
• The system enables efficient collection and study of rare isotopes, advancing nuclear physics research.