activity
20122024
most citedEffect of high temperature heat treatments on the quality factor of a large-grain superconducting radio-frequency niobium cavity

91 citations · 145 across the 11 of their papers we have counts for

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10 papers · 1 filter

physics.acc-ph2024

A feasibility study of a thorium fueled molten salt micro modular subcritical reactor using an electron accelerator

A. Rummana, R. Barlow, G. Myneni +1

We present a design for a small subcritical molten salt thorium breeder reactor driven by an electron accelerator. Such a reactor could provide a safe and simple power source fuell…

physics.acc-ph2022

RF Accelerator Technology R&D: Report of AF7-rf Topical Group to Snowmass 2021

Sergey Belomestnykh, Emilio A. Nanni, Hans Weise +18

Accelerator radio frequency (RF) technology has been and remains critical for modern high energy physics (HEP) experiments based on particle accelerators. Tremendous progress in ad…

physics.acc-ph2022★ 5 cited

Medium-Grain Niobium SRF Cavity Production Technology for Science Frontiers and Accelerator Applications

G. Myneni, Hani E. Elsayed-Ali, Md Obidul Islam +15

We propose cost-effective production of medium grain (MG) niobium (Nb) discs directly sliced from forged and annealed billet. This production method provides clean surface conditio…

physics.acc-ph2017★ 13 cited

Role of Thermal Resistance on the Performance of Superconducting Radio Frequency Cavities

Pashupati Dhakal, Gianluigi Ciovati, Ganapati Rao Myneni

Thermal stability is an important parameter for the operation of the superconducting radio frequency (SRF) cavities used in particle accelerators. The rf power dissipated on the in…

physics.acc-ph2014★ 21 cited

Enhancement in Quality Factor of SRF Niobium Cavities by Material Diffusion

Pashupati Dhakal, Gianluigi Ciovati, Peter Kneisel +1

An increase in the quality factor of superconducting radiofrequency cavities is achieved by minimizing the surface resistance during processing steps. The surface resistance is the…

physics.acc-ph2013

Analysis of post wet chemistry heat treatment effects on Nb SRF surface resistance

Pashupati Dhakal, Gianluigi Ciovati, Peter Kneisel +1

Most of the current research in superconducting radio frequency (SRF) cavities is focused on ways to reduce the construction and operating cost of SRF based accelerators as well as…

physics.acc-ph2013★ 1 cited

The Rise of Ingot Niobium as a Material for Superconducting Radiofrequency Accelerating Cavities

P. Kneisel, G. Ciovati, P. Dhakal +4

As a result of a collaboration between Jefferson Lab and niobium manufacturer CBMM, ingot niobium was explored as a possible material for superconducting radiofrequency (SRF) cavit…

physics.acc-ph2013

Comment on "Proximity breakdown of hydrides in superconducting niobium cavities" [arXiv:1212.3384]

G. Ciovati, P. Dhakal, G. R. Myneni

Comment on Proximity breakdown of hydrides in superconducting niobium cavities [arXiv:1212.3384].

physics.acc-ph2012★ 2 cited

A Path to Higher Q0 with Large Grain Niobium Cavities

Pashupati Dhakal, Gianluigi Ciovati, Ganapati Rao Myneni

The improvement of the quality factor Q0 of superconducting radio-frequency (SRF) cavities at medium accelerating gradients (20-25 MV/m) is important in order to reduce the cryogen…

physics.acc-ph2012★ 4 cited

Superconducting DC and RF Properties of Ingot Niobium

Pashupati Dhakal, Gianluigi Ciovati, Peter Kneisel +1

The thermal conductivity, DC magnetization and penetration depth of large-grain niobium hollow cylindrical rods fabricated from ingots, manufactured by CBMM subjected to chemical a…