Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunch
Phase-space partitioning offers an attractive path for the precise tailoring of complex dynamical systems. In beam physics, the proposed approach involves (i) producing beams with cross-plane correlations to control kinematic-moment invariants known as eigenemittances and (ii) mapping them to invari...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-04-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.25.044001 |
| _version_ | 1811311410057052160 |
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| author | T. Xu D. S. Doran W. Liu P. Piot J. G. Power C. Whiteford E. Wisniewski |
| author_facet | T. Xu D. S. Doran W. Liu P. Piot J. G. Power C. Whiteford E. Wisniewski |
| author_sort | T. Xu |
| collection | DOAJ |
| description | Phase-space partitioning offers an attractive path for the precise tailoring of complex dynamical systems. In beam physics, the proposed approach involves (i) producing beams with cross-plane correlations to control kinematic-moment invariants known as eigenemittances and (ii) mapping them to invariants of motion associated with given degrees of freedom via a decoupling transformation. Here we report on the direct experimental demonstration of the mapping of eigenemittances to transverse emittances for an electron beam. Measured phase space density confirms the generation of beams with asymmetric transverse emittance ratio >200 consistent with the initiated eigenemittance values. In addition, the bunches were produced via photoemission in the space-charge-driven expansion regime ultimately resulting in the generation of uniformly charged three-dimensional ellipsoidal bunches. The ellipsoidal character of the distributions is experimentally confirmed. |
| first_indexed | 2024-04-13T10:18:25Z |
| format | Article |
| id | doaj.art-5b9397e79cc44aeda879dc9e6f77bd1c |
| institution | Directory Open Access Journal |
| issn | 2469-9888 |
| language | English |
| last_indexed | 2024-04-13T10:18:25Z |
| publishDate | 2022-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj.art-5b9397e79cc44aeda879dc9e6f77bd1c2022-12-22T02:50:37ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882022-04-0125404400110.1103/PhysRevAccelBeams.25.044001Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunchT. XuD. S. DoranW. LiuP. PiotJ. G. PowerC. WhitefordE. WisniewskiPhase-space partitioning offers an attractive path for the precise tailoring of complex dynamical systems. In beam physics, the proposed approach involves (i) producing beams with cross-plane correlations to control kinematic-moment invariants known as eigenemittances and (ii) mapping them to invariants of motion associated with given degrees of freedom via a decoupling transformation. Here we report on the direct experimental demonstration of the mapping of eigenemittances to transverse emittances for an electron beam. Measured phase space density confirms the generation of beams with asymmetric transverse emittance ratio >200 consistent with the initiated eigenemittance values. In addition, the bunches were produced via photoemission in the space-charge-driven expansion regime ultimately resulting in the generation of uniformly charged three-dimensional ellipsoidal bunches. The ellipsoidal character of the distributions is experimentally confirmed.http://doi.org/10.1103/PhysRevAccelBeams.25.044001 |
| spellingShingle | T. Xu D. S. Doran W. Liu P. Piot J. G. Power C. Whiteford E. Wisniewski Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunch Physical Review Accelerators and Beams |
| title | Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunch |
| title_full | Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunch |
| title_fullStr | Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunch |
| title_full_unstemmed | Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunch |
| title_short | Demonstration of eigen-to-projected emittance mapping for an ellipsoidal electron bunch |
| title_sort | demonstration of eigen to projected emittance mapping for an ellipsoidal electron bunch |
| url | http://doi.org/10.1103/PhysRevAccelBeams.25.044001 |
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