J. Steimel
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View article: The Tevatron Transverse Dampers
The Tevatron Transverse Dampers Open
We describe in this paper the theory and construction of the Tevatron transverse dampers. The goal of these dampers is to keep the beam stable when we operate at lower chromaticities. The reason for operating at lower chromaticities is to …
View article: Effects of RF noise on the longitudinal emittance growth in Tevatron
Effects of RF noise on the longitudinal emittance growth in Tevatron Open
Phase and amplitude noises in the Tevatron RF system and the intrabeam scattering (IBS) produce longitudinal emittance growth with consecutive particle loss from the RF buckets. That causes a decrease of the luminosity and an increase of t…
View article: Controlled emittance blow up in the Tevatron
Controlled emittance blow up in the Tevatron Open
We have designed and commissioned a system which blows up the transverse emittance of the anti-proton beam without affecting the proton beam. It consists of a bandwidth limited noise source centered around the betatron tune, a power amplif…
View article: Thermal Profiling of PIP-II Radio Wave Distribution
Thermal Profiling of PIP-II Radio Wave Distribution Open
medium energy beam transport line (MEBT). The paper reports RF design of the re-buncher for MEBT along with thermal analysis of the cavity.
View article: Beam Tests of the PIP-II Injector Test Radio Frequency Quadrupole
Beam Tests of the PIP-II Injector Test Radio Frequency Quadrupole Open
In modern high intensity ion-particle accelerators, a Radio Frequency Quadrupole (RFQ) is utilized to prepare a high-quality beam for injection to the main accelerating section. Since an RFQ governs the initial beam parameters, characteriz…
View article: Resonant Frequency Control for the PIP-II Injector Test RFQ: Control Framework and Initial Results
Resonant Frequency Control for the PIP-II Injector Test RFQ: Control Framework and Initial Results Open
For the PIP-II Injector Test (PI-Test) at Fermilab, a four-vane radio frequency quadrupole (RFQ) is designed to accelerate a 30-keV, 1-mA to 10-mA H' beam to 2.1 MeV under both pulsed and continuous wave (CW) RF operation. The available he…
View article: Neural Network Model Of The PXIE RFQ Cooling System and Resonant Frequency Response
Neural Network Model Of The PXIE RFQ Cooling System and Resonant Frequency Response Open
As part of the PIP-II Injector Experiment (PXIE) accelerator, a four-vane radio frequency quadrupole (RFQ) accelerates a 30-keV, 1-mA to 10-mA H- ion beam to 2.1 MeV. It is designed to operate at a frequency of 162.5 MHz with arbitrary dut…
View article: Resonant Frequency Control For the PIP-II Injector Test RFQ: Control Framework and Initial Results
Resonant Frequency Control For the PIP-II Injector Test RFQ: Control Framework and Initial Results Open
For the PIP-II Injector Test (PI-Test) at Fermilab, a four-vane radio frequency quadrupole (RFQ) is designed to accelerate a 30-keV, 1-mA to 10-mA, H- beam to 2.1 MeV under both pulsed and continuous wave (CW) RF operation. The available h…