Speaker
Description
We describe an experiment to demonstrate Derbenev’s flat-to-round (FTR) and round-to-flat (RTF) optical transformations, designed to match electron beams from a high-energy storage ring into and out of a solenoidal cooling channel. We are using a linear transport system with a design optimized by a computationally-efficient adjoint moment equation technique developed by our group for general application to beam optical systems*. We will explore cases on FTR/FTR, first with low space charge, followed by further examples with significant space charge, comparing simulations to beam measurements and reoptimizing the design as needed to test alternative experimental configurations. Our goal is to experimentally and computationally test the Derbenev scheme, which has not been done in its entirety, and to carry out a rigorous, experimental validation of the adjoint moment equation techniques.
Footnotes
- Ya.S. Derbenev, “Advanced optical concepts for electron cooling;” Nuclear Instruments and Methods in Physics Research A 441 (2000) 223-233
** L. Dovlatyan, et al., “Optimization of flat to round transformers with self-fields using adjoint techniques,” PHYSICAL REVIEW ACCELERATORS AND BEAMS 25, 044002 (2022)
Funding Agency
Work supported by US DOE-HEP grants: DE-SC0010301 and DE-SC0022009
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