1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

A standalone radio frequency quadrupole accelerator for swift heavy ions

TUPS045
3 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC4.A08 Linear Accelerators Tuesday Poster Session

Speaker

Sarvesh Kumar (Inter-University Accelerator Centre)

Description

The radio frequency quadrupole (RFQ) is known for bunching, focusing and acceleration of ion beam and more importantly, it does not require transverse focusing element like quadrupole magnets between accelerating cells compared to drift tube linacs. By pushing the limits of handling surface electric field between RFQ vanes, it is possible to make a standalone 352 MHz RFQ reaching 1.8 MeV/u energy gain for swift heavy ions upto mass to charge ratio (A/q) ≤ 4. Special RFQ vane material of cryo Cu is considered by which surface electric fields can be pushed around 50 MV/m* and the whole RFQ is designed within a length of 5m which is substantially less than any RFQ + DTL combination of equivalent energy gain accelerator for heavy ions. Such systems are highly promising for compact medical LINACS and as well as standalone facilities for nuclear physics experiments. The adiabatic bunching and focusing inherently stabilize the beam dynamics at proper RFQ power and cavity tuning. We present the beam optics design using PARMTEQ code and RFQ cavity design along with thermal analysis using CST MWS. The error analysis is provided to support the design in terms of practical feasibility.

Footnotes

Dimov et. al, Beam Commissioning of the 750 MHz Proton RFQ for the LIGHT Prototype, 9th IPAC, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF002.
*Lombardi et. al, Beam dynamics in a high frequency RFQ, 6th IPAC2015, Richmond, VA, USA, PP. WEYB2.

Region represented Asia
Paper preparation format LaTeX

Author

Sarvesh Kumar (Inter-University Accelerator Centre)

Co-authors

Sruthy Varma K (St. Philomena's College ( Autonomous), Mysore,) Niketan Jakhar (Jawaharlal Nehru University) Chandan Thakur (Jawaharlal Nehru University) Manish Kashyap (Jawaharlal Nehru University) Alessandra Lombardi (European Organization for Nuclear Research)

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