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Gas-filled separator for nuclear structure experiments at ATLAS Darek Seweryniak, ANL.

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Presentation on theme: "Gas-filled separator for nuclear structure experiments at ATLAS Darek Seweryniak, ANL."— Presentation transcript:

1 Gas-filled separator for nuclear structure experiments at ATLAS Darek Seweryniak, ANL

2 Physics HK distributions in heavy nuclei (GS) In-beam spectroscopy of heavy nuclei (GS) Isomers and decays of heavy nuclei (focal plane) Super-heavy searches (focal plane) Fast activities in proton-rich nuclei Gas-cell and traps …

3 Principle of Operation B i = p/q i B = p/q ave vacuumgas q ave ~ (v/v 0 ) Z 1/3 B ~ A/Z 1/3 [Tm]

4 Vacuum vs Gas-Filled M/Q measurement physical separation good beam suppression high efficiency short flight path low efficiency long flight path no mass resolution no separation poor beam suppression Truly complementary devices!

5 Existing Gas-Filled Separators RITU - Jyvaaskylaa BGS – Berkeley SASSYER - Yale GFRS - Dubna GARIS – RIKEN TASCA - GSI

6 Parameters of the Existing Gas-Filled Separators SASSYER DvQhDv He RITU QvDQhQv He BGS QvDhD He Dubna GFRS DQhQv H 2 TASCA DQhQv He separator configuration [msr] B max [Tm] L [m] gas

7 Important design parameters Solid angle Scattered beam suppression Suppression of transfer products Manageable focal plane size State-of-the-art implantation station – already available Efficient coupling to a 4 Ge array (movable)

8 RITU

9 Where?

10 Thank you!


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