25–30 Aug 2024
Hilton Chicago
America/Chicago timezone

Performance evaluation and enhancement in kW level SSAs

MOPB010
26 Aug 2024, 16:00
2h
Boulevard (Hilton Chicago)

Boulevard

Hilton Chicago

720 South Michigan Ave Chicago, IL 60605 USA
Poster Presentation MC4.6 RF power sources and power couplers Monday Poster Session

Speaker

Manjiri Pande (Bhabha Atomic Research Centre)

Description

The Bhabha Atomic Research Centre (BARC) of Department of Atomic Energy (DAE) has indigenously designed, developed and tested high efficiency compact 7 kW and 20 kW solid state amplifier (SSA) systems at 325 MHz. These SSAs will be used for both Indian accelerators and Proton Improvement Plan II (PIP-II) project of Fermilab, USA. The PIP-II accelerator requires two levels of RF power at 325 MHz for its single spoke resonator (SSR) section with 7 kW SSA for SSR1 with β of 0.22 and 20 kW SSA for SSR2with β of 0.47. Based on BARC design, eight 7 kW SSA systems were produced by Electronic Corporation of India (ECIL), DAE and deployed at PIP II injector test (PIP2IT) facility of Fermilab for beam acceleration. Performance evaluation of the 7 and 20 kW SSAs included, a detailed measurement survey of non-ionizing radiation at 325 MHz around SSA, validation of graceful degradation, measurement of mean time to replace etc. Enhancement accomplished in the SSA sub systems comprises of incorporation of inbuilt directional coupler in each 1 kW power amplifier (PA) module, a balanced input power divider, a 100W driver amplifier with heat pipe-heatsink and arrangement of three PA modules on single water cooled aluminum heat sink etc. This paper discusses all these performance evaluations and performance enhancements in detail for both 7 and 20 kW SSAs, which will be highly beneficial for reliable accelerator operation.

Author

Manjiri Pande (Bhabha Atomic Research Centre)

Co-authors

A SHIJU (Bhabha Atomic Research Centre) Ankit Maheshwari (Electronics Corporation of India) D. Balakrishna (Electronics Corporation of India) Gopal Joshi (Bhabha Atomic Research Centre) Gourabattuni Poornima (Electronics Corporation of India) Jitendra Mishra (Bhabha Atomic Research Centre) Niranjan Patel (Bhabha Atomic Research Centre) Rama Rao Thalluri (Electronics Corporation of India) Sameer Dubey (Electronics Corporation of India) Sandip Shrotriya (Bhabha Atomic Research Centre) Shyam Jena (Bhabha Atomic Research Centre) Snigdha Singh (Bhabha Atomic Research Centre) Venkata Bala (Bhabha Atomic Research Centre) Venumohan Gollapalli (Electronics Corporation of India)

Presentation materials

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