LEDA Beam Operations Milestone and Observed Beam Transmission Characteristics
L. J. Rybarcyk, J. D. Schneider, H. V. Smith, L. M. Young, M. E. Schulze
Abstract
Recently, the Low-Energy Demonstration Accelerator (LEDA) portion of the Accelerator Production of Tritium (APT) project reached its 100-mA, 8-hr CW beam operation milestone. LEDA consists of a 75-keV proton injector, 6.7-MeV, 350-MHz CW radio-frequency quadrupole (RFQ) with associated high-power and low-level rf systems, a short high-energy beam transport (HEBT) and high-power (670-kW CW) beam dump. During the commissioning phase it was discovered that the RFQ field level must to be approximately 5-10% higher than design in order to accelerate the full 100-mA beam with low losses. Measurements of a low-duty-factor, 100-mA beam show the beam transmission is unexpectedly low for RFQ field levels between ~90 and 105% of design. This paper will describe some aspects of LEDA operations critical to achieving the above milestone. Measurement and simulation results for reduced RFQ beam transmission near design operating conditions are also presented.
Create a lesson
Related papers
Reconstruction of Beam Transverse Parameters in the Fermilab Side-Coupled Linac Using a Normalized Coordinate Framework
E. V. Chen, J-P. Carneiro, R. V. Sharankova et al.
Coherent collective amplification of terahertz microbunching seeded by laser frequency beating in relativistic electron beams
Wencai Cheng, Yin Kang, Kaiqing Zhang et al.
Heavy ion driven plasma wakefield acceleration with drift-like phase-shift acceleration scheme
Li Jiangdong, Xia Guoxing, Liu Jie et al.
Ultralow Mean Transverse Energy and High Quantum Efficiency Cryogenic Bialkali Photocathode for MHz-Repetition-Rate Electron Sources
D. Wang, S. Liu, J. Liu et al.
First Cobotic-Assisted String Assembly of PIP-II SSR2 Cavities at Fermilab
M. Parise, T. Aiazzi, C. Narug
PIP-II Project Progress and Challenges
O. Napoly