| dc.identifier.uri | http://hdl.handle.net/11401/76674 | |
| dc.description.sponsorship | This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree. | en_US |
| dc.format | Monograph | |
| dc.format.medium | Electronic Resource | en_US |
| dc.language.iso | en_US | |
| dc.publisher | The Graduate School, Stony Brook University: Stony Brook, NY. | |
| dc.type | Thesis | |
| dcterms.abstract | A next generation Energy Recovery Linac (ERL) is under development in the Collider-Accelerator Department at Brookhaven National Laboratory (BNL). This ERL uses a superconducting radio frequency (SFR) cavity to produce an electric field gradient ideal to accelerate charged particles. As with many accelerators, higher-order modes (HOMs) can be induced by a beam of charged particles traversing the linear accelerator cavity. The excitation of these modes can result in problematic single and multi-bunch effects and also produce undesirable heat loads to the cryogenic system. Understanding HOM prevalence and structure inside the accelerator cavity is crucial for devising a procedure for extracting HOM power and promoting excellent beam quality. In this work, a method was created to identify and characterize HOMs using a perturbation technique on a copper (Cu) cavity prototype of the BNL3 linac and a double λ /4 crab cavity. Both analyses and correlation between simulated and measured results are shown. A coaxial to dual-ridge waveguide HOM coupler was designed, constructed and implemented to extract power from HOMs simultaneously making an evanescent fundamental mode for the BNL3 cavity. A full description of the design is given along with a simulated analysis of its performance. Comparison between previous HOM coupler designs as well as correspondence between simulation and measurement is also given. | |
| dcterms.available | 2017-09-20T16:50:56Z | |
| dcterms.contributor | Belomestnykh, Sergey | en_US |
| dcterms.contributor | Du, Xu | en_US |
| dcterms.contributor | Hemmick, Thomas | en_US |
| dcterms.contributor | Tsybychev, Dmitri. | en_US |
| dcterms.creator | Marques, Carlos | |
| dcterms.dateAccepted | 2017-09-20T16:50:56Z | |
| dcterms.dateSubmitted | 2017-09-20T16:50:56Z | |
| dcterms.description | Department of Physics (Scientific Instrumentation). | en_US |
| dcterms.extent | 66 pg. | en_US |
| dcterms.format | Monograph | |
| dcterms.format | Application/PDF | en_US |
| dcterms.identifier | http://hdl.handle.net/11401/76674 | |
| dcterms.issued | 2014-12-01 | |
| dcterms.language | en_US | |
| dcterms.provenance | Made available in DSpace on 2017-09-20T16:50:56Z (GMT). No. of bitstreams: 1
Marques_grad.sunysb_0771M_11838.pdf: 44425230 bytes, checksum: 682fa8f2577c0b3d979bf4df50d4184f (MD5)
Previous issue date: 1 | en |
| dcterms.publisher | The Graduate School, Stony Brook University: Stony Brook, NY. | |
| dcterms.subject | Physics | |
| dcterms.subject | Bead Pull, BNL3, Coaxial to Dual-Ridge Waveguide, Energy Recovery Linac, Higher Order Modes, HOM Coupler | |
| dcterms.title | A Comprehensive Investigation and Coupler Design for Higher-Order Modes in the BNL Energy Recovery Linear Accelerator | |
| dcterms.type | Thesis | |
