Nitrogen doping and infusion in SRF cavities: A review

Dhakal, Pashupati

doi:10.1016/j.physo.2020.100034

Cited by 33 publications

(21 citation statements)

References 106 publications

(139 reference statements)

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“…This paper observed that increasing the total flow rate of the gas mixture influences the reaction rate and improves the nitriding process, favoring the formation of the hexagonal phase, which is found at a temperature lower than that of the cubic phase according to the Nb-N diagram 29 . The different proportions of the nitride cubic and hexagonal were found and analyzed by the program GSAS according to the parameters studied in this paper.…”

Section: Effect Of Precursor Mass Variationmentioning

confidence: 94%

Production of Niobium Nitride Via Nitrogen-Based Solid-Gas Reaction

et al. 2022

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Nanostructured niobium nitride was synthesized through a solid-gas reaction in an atmosphere of nitrogen and hydrogen using an oxalic niobium precursor. Crystal phases evolution throughout the reactive processes were evaluated using X-Ray Diffraction, reaction parameters modifications were performed in isotherm time, gas flow, and precursors' mass. It was verified the synthesis of a stable NbN material with a hexagonal structure under the following conditions: 1g of precursor, 300 min of isotherm at 1100 °C and, the gas flow of N 2 = 40% (v/v), and H 2 = 60% (v/v). The increase in gas phase flow and the decrease of solid load favored the process, and a pure and single-phase powder was obtained. This set indicates the importance of physical resistance in the fluid-particle interaction process. Under these conditions, the solid obtained had a crystallite size of 30 -50 nm.

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Section: Effect Of Precursor Mass Variationmentioning

confidence: 94%

Production of Niobium Nitride Via Nitrogen-Based Solid-Gas Reaction

et al. 2022

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“…4.25, and compared to the performance of cavities prepared with the standard ILC recipe. JLAB has shown success with infusion [135], but KEK [136] and DESY [137] have found the technique to be sensitive to the quality of the infusion furnace, and difficult to implement.…”

Section: Nitrogen Infusionmentioning

confidence: 99%

The International Linear Collider (Report to Snowmass 2021)

Aryshev¹,

Behnke²,

Berggren³

et al. 2022

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The International Linear Collider (ILC) is on the table now as a new global energyfrontier accelerator laboratory taking data in the 2030's. The ILC addresses key questions for our current understanding of particle physics. It is based on a proven accelerator technology. Its experiments will challenge the Standard Model of particle physics and will provide a new window to look beyond it. This document brings the story of the ILC up to date, emphasizing its strong physics motivation, its readiness for construction, and the opportunity it presents to the US and the global particle physics community.

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“…A key technological ingredient for the ERL concept is the realization of RF systems with a sufficiently high Q 0 that allow an efficient storage of the electromagnetic fields between deceleration and acceleration cycles. This only became feasible with recent advancements in superconducting RF (SRF) technology that allow accelerating gradients of the order of 20 MV/m with Q 0 > 10 10 [24][25][26]. The higher the Q 0 and the lower the losses through Higher Order Modes (HOMs), the more efficient the ERL.…”

Section: Common Challenges and Enabling Technologiesmentioning

confidence: 99%

Electron-Hadron Colliders: EIC, LHeC and FCC-eh

2022

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Electron-hadron colliders are the ultimate tool for high-precision quantum chromodynamics studies and provide the ultimate microscope for probing the internal structure of hadrons. The electron is an ideal probe of the proton structure because it provides the unmatched precision of the electromagnetic interaction, as the virtual photon or vector bosons probe the proton structure in a clean environment, the kinematics of which is uniquely determined by the electron beam and the scattered lepton, or the hadronic final state accounting appropriately for radiation. The Hadron Electron Ring Accelerator HERA (DESY, Hamburg, Germany) was the only electron-hadron collider ever operated (1991–2007) and advanced the knowledge of quantum chromodynamics and the proton structure, with implications for the physics studied in RHIC (BNL, Upton, NY) and the LHC (CERN, Geneva, Switzerland). Recent technological advances in the field of particle accelerators pave the way to realize next-generation electron-hadron colliders that deliver higher luminosity and enable collisions in a much broader range of energies and beam types than HERA. Electron-hadron colliders combine challenges from both electron and hadron machines besides facing their own distinct challenges derived from their intrinsic asymmetry. This review paper will discuss the major features and milestones of HERA and will examine the electron-hadron collider designs of the Electron-Ion Collider (EIC) currently under construction at BNL, the CERN’s Large Hadron electron Collider (LHeC), at an advanced stage of design and awaiting approval, and the Future Circular lepton-hadron Collider (FCC-eh).

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Nitrogen doping and infusion in SRF cavities: A review

Cited by 33 publications

References 106 publications

Production of Niobium Nitride Via Nitrogen-Based Solid-Gas Reaction

Production of Niobium Nitride Via Nitrogen-Based Solid-Gas Reaction

The International Linear Collider (Report to Snowmass 2021)

Electron-Hadron Colliders: EIC, LHeC and FCC-eh

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