Fay Hannon

Conduction-cooled operation of an SRF multi-cell cavity

John Vennekate, Alejandro Castilla, Gary Cheng, Gianluigi Ciovati et autres

The development of compact, SRF-based accelerators for applications beyond research is experiencing notable advancements due to the use of cryocoolers for conduction cooling instead of traditional liquid cryogens. Following the successful demonstration of a single-cell cavity operated through conduction cooling with three …

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The Continuous Electron Beam Accelerator Facility at 12 GeV

Philip A. Adderley, Shahid Ahmed, Trent Allison, Ramakrishna Bachimanchi et autres

This review paper describes the energy-upgraded Continuous Electron Beam Accelerator Facility (CEBAF) accelerator. This superconducting linac has achieved 12 GeV beam energy by adding 11 new high-performance cryomodules containing 88 superconducting cavities that have operated cw at an average accelerating gradient of …

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High efficiency normal conducting linac for environmental water remediation

Fay Hannon

A continuous wave (CW) electron accelerator for the treatment of industrial streams including an electron beam source, a modified high efficiency slot coupled cavity, at least one focusing magnet positioned surrounding the accelerator to contain the beam in the accelerator, an efficient …

Compact, high-power superconducting radio-frequency accelerators for environmental applications

Gianluigi Ciovati, Alejandro Castilla Loeza, Guangfeng Cheng, Uttar Pudasaini et autres

Electron beam irradiation of wastewater • Radiolysis of water produces strong radicals which decompose pollutants on milliseconds time-scale • Color & odor removal, disinfection, degradation of a wide number of pharmaceutical and personal care products (PPCP) and organic compounds 2 e - …

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Development of a prototype superconducting radio-frequency cavity for conduction-cooled accelerators

Gianluigi Ciovati, James P. Anderson, S. Balachandran, Gary Cheng et autres

The higher efficiency of superconducting radio-frequency (SRF) cavities compared to normal-conducting ones enables the development of high-energy continuous-wave linear accelerators (linacs). Recent progress in the development of high-quality ${\mathrm{Nb}}_{3}\mathrm{Sn}$ film coatings along with the availability of cryocoolers with high cooling capacity at …

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Generation and characterization of magnetized electron beam from a DC high voltage photogun for electron beam cooling application

Sajini Wijethunga, M. A. Mamun, R. Suleiman, Philip A. Adderley et autres

One of the most challenging requirements for the proposed Electron–Ion Collider is the strong cooling of the proton beam, which is key to achieving the collider’s desired luminosity of order 1033–1034 cm−2 s−1. Magnetized bunched-beam electron cooling could be a means to …

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Method for maximizing the brightness of the bunches in a particle injector by converting a highly space-charged beam to a relativistic and emittance-dominated beam

Fay Hannon

A method for maximizing the brightness of the bunches in a particle injector by converting a highly space-charged beam to a relativistic and emittance-dominated beam. The method includes 1) determining the bunch charge and the initial kinetic energy of the highly space-charge …

Nano-patterned superconducting surface for high quantum efficiency cathode

Fay Hannon

A method for providing a superconducting surface on a laser-driven niobium cathode in order to increase the effective quantum efficiency. The enhanced surface increases the effective quantum efficiency by improving the laser absorption of the surface and enhancing the local electric field. …

An e-beam irradiation beamline at Jefferson Lab for 1,4-dioxane and per- and polyfluoroalkyl substances (PFAS) remediation in wastewater

Xi Li, Helmut Baumgart, Gianluigi Ciovati, Shaun David Gregory et autres

The Upgraded Injector Test Facility (UITF) at Jefferson Lab, providing a beam energy up to 10 MeV, is suitable for wastewater remediation research. To investigate the degradation of 1,4-dioxane and per- and polyfluoroalkyl substances (PFAS), widespread in wastewater and potential to be …

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USING E-BEAM IRRADIATION BEAMLINE AT JEFFERSON LAB TO REMOVE 1,4-DIOXANE AND PFAS IN WASTEWATER

Xi Li, Helmut Baumgart, Charles B. Bott, Gianluigi Ciovati et autres

The designed e-beam irradiation beamline [1] at Jefferson Lab has been commissioned and applied to study the degradation removal of 1,4-dioxane and per- and polyfluoroalkyl substances (PFAS) in wastewater by collaborating with Hampton Roads Sanitation District (HRSD), treating wastewater in southeast Virginia. …

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Design and commissioning of an e-beam irradiation beamline at the Upgraded Injector Test Facility at Jefferson Lab

Xi Li, Helmut Baumgart, Charles B. Bott, Gianluigi Ciovati et autres

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Beamline for E-beam processing at UITF

Gianluigi Ciovati, Charles B. Bott, S. Gregory, Fay Hannon et autres

Electron beam irradiation is a method that has shown a good potential to reduce several pollutants in wastewater. One of the main challenges towards wider adoption of this method is the need for compact, reliable, cost-effective, high-power accelerators. Jefferson Lab is working …

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