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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 127 records · Page 7
All sourcesNASA NTRSDOE OSTI
DOE OSTI2022

Operational Experience of the New Booster Cryomodule at the Upgraded Injector Test Facility

Since the early 1990s, the in­jec­tor of the CEBAF ac­cel­er­a­tor at Jef­fer­son Lab has re­lied on a nor­mal-con­duct­ing RF graded-beta cap­ture sec­tion to boost the ki­netic en­ergy of the elec­tron beam from 100 / 130 keV to 600 keV for sub­se­quent ac­cel­er­a­tion using a cry­omod­ule hous­ing two su­per­con­duct­ing 5-cell cav­i­ties sim­i­lar to those used through­out the ac­cel­er­a­tor. To sim­plify the in­jec­tor de­sign and im­prove the beam qual­ity, the nor­mal-con­duct­ing RF cap­ture sec­tion and the cry­omod­ule will be re­placed with a new sin­gle booster cry­omod­ule em­ploy­ing a su­per­con­duct­ing, β = 0.6, 2-cell-cav­ity cap­ture sec­tion and a sin­gle, β = 0.97, 7-cell cav­ity. The Up­graded In­jec­tor Test Fa­cil­ity at Jef­fer­son Lab is cur­rently host­ing the new cry­omod­ule to eval­u­ate its per­for­mance with beam be­fore in­stal­la­tion at CEBAF. While demon­strat­ing sat­is­fac­tory per­for­mance of the booster and good agree­ment with sim­u­la­tions, our beam test re­sults also speak to lim­i­ta­tions of ac­cel­er­a­tor op­er­a­tions in a noisy, ther­mally un­reg­u­lated en­vi­ron­ment.

Bruker, M. W.↗
DOE OSTI2023

Start-up Operation Experience with a Liquid Fluoride Salt Forced Convection Loop

A liquid fluoride salt forced convection test loop was constructed at Oak Ridge National Laboratory. Its unique features include a pebble bed test section, high-temperature instrumentation, a noncontact rotating gas seal for the pump, a silicon carbide flow tube, and a unique inductive heating technique. Initial startup and shake-down testing has been completed. This paper describes how several of the systems performed, highlights those that worked well, and discusses issues that arose during the start-up process. This discussion should be of interest to those who intend to develop molten salt technologies and who are interested in some of the specific techniques used in this experiment.

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS↗
DOE OSTI2022

Operational Experience of the New Booster Cryomodule at the Upgraded Injector Test Facility

Since the early 1990s, the in­jec­tor of the CEBAF ac­cel­er­a­tor at Jef­fer­son Lab has re­lied on a nor­mal-con­duct­ing RF graded-beta cap­ture sec­tion to boost the ki­netic en­ergy of the elec­tron beam from 100 / 130 keV to 600 keV for sub­se­quent ac­cel­er­a­tion using a cry­omod­ule hous­ing two su­per­con­duct­ing 5-cell cav­i­ties sim­i­lar to those used through­out the ac­cel­er­a­tor. To sim­plify the in­jec­tor de­sign and im­prove the beam qual­ity, the nor­mal-con­duct­ing RF cap­ture sec­tion and the cry­omod­ule will be re­placed with a new sin­gle booster cry­omod­ule em­ploy­ing a su­per­con­duct­ing, β = 0.6, 2-cell-cav­ity cap­ture sec­tion and a sin­gle, β = 0.97, 7-cell cav­ity. The Up­graded In­jec­tor Test Fa­cil­ity at Jef­fer­son Lab is cur­rently host­ing the new cry­omod­ule to eval­u­ate its per­for­mance with beam be­fore in­stal­la­tion at CEBAF. While demon­strat­ing sat­is­fac­tory per­for­mance of the booster and good agree­ment with sim­u­la­tions, our beam test re­sults also speak to lim­i­ta­tions of ac­cel­er­a­tor op­er­a­tions in a noisy, ther­mally un­reg­u­lated en­vi­ron­ment.

Bruker, M. W.↗
DOE OSTI2025

Operational Experience of the NML Cryogenic Plant at the FAST Test Facility

The New Muon Laboratory (NML) cools two individually cryostated superconducting radio frequency (SRF) capture cavities (CC) and one prototype ILC cryomodule (CM) with eight SRF cavities. This complex accelerates electrons at 150 MeV for the Integrable Optics Test Accelerator (IOTA) ring, located at the Fermilab Accelerator Science and Technology (FAST) facility. Since 2019, this R&D accelerator complex has gone through four science runs.

Wallace, T. [Fermilab]↗