Speaker
Description
The space charge effect is a major limitation for high-intensity beam operation, causing tune shift, tune spread, beam loss, and degradation of beam quality. Conventional mitigation methods, such as increasing injection energy or enlarging emittance, are difficult to apply to existing accelerator facilities. An electron lens provides an effective approach for space charge compensation by introducing a matched low-energy electron beam to generate a compensating electromagnetic field. In this work, the effect of an electron lens on space charge compensation in the High Intensity heavy-ion Accelerator Facility (HIAF) is investigated. Beam dynamics simulations are performed to evaluate its impact on beam loss, tune spread, and space charge-induced tune shift. The results show that the electron lens can effectively reduce space charge effects, improve beam transport performance, and enhance the achievable beam intensity.