9 papers
Reconstruction of Beam Transverse Parameters in the Fermilab Side-Coupled Linac Using a Normalized Coordinate Framework
E. V. Chen, J-P. Carneiro, R. V. Sharankova +1
Quadrupole scans are a commonly used tool for beam second moment reconstruction. Limitations in the strength of the magnets and layout of the beamline elements frequently preclude…
Upgrade to Fixed and Translating Scintillation-based Loss Detector System in the Fermilab Drift Tube Linac
E. V. Chen, A. L. Saewert, R. V. Sharankova
The closed-off structure of the Fermilab Drift Tube Linac precludes a robust array of instrumentation from directly monitoring the H- beam that is accelerated from 750 keV to 116 M…
Time-of-flight Energy Measurements with BPMs
A. Shemyakin, J. Kuharik, R. Sharankova
The energy of a bunched non-relativistic ion beam can be deduced from measuring the beam phases in neighbouring Beam Position Monitors (BPMs). This report discusses implementation…
Measuring Orbit Responses with Oscillating Trajectories in the Fermilab Linac
A. Shemyakin, A. Pathak, R. Sharankova
Recording changes in beam transverse positions re-ported by Beam Position Monitors (BPMs) in response to a beam deflection by an upstream dipole corrector (orbit response) is a pow…
Optics Reconstruction in the SCL Section of the FNAL Linac
J. -P. Carneiro, E. Chen, A. Pathak +2
The Side-Coupled Linac (SCL) section of the FNAL linac accelerates the beam from 117 MeV to 401.5 MeV, operating at 22-24 mA beam current. Transverse focusing is performed by 32 qu…
Measurements of the Beam Longitudinal Properties in the Fermilab Linac
R. Sharankova, J-P. Carneiro, E. Chen +1
The Fermilab Linac delivers 400MeV, 25mA H; beam. The longitudinal bunch parameters are reconstructed using a Bunch Shape Monitor (BSM) installed in the middle of the Linac. Fo…
Emittance Measurements with Wire Scanners in the Fermilab Side-coupled Linac
E. Chen, R. Sharankova, A. Shemyakin +1
The Fermilab Side-Coupled Linac accelerates H-beam from 116 MeV to 400 MeV through seven 805 MHz modules. Twelve wire scanners are present in the Side Coupled Linac and four are pr…
Quantitative description and correction of longitudinal drifts in the Fermilab linac
R. Sharankova, A. Shemyakin, S. Rego
The Fermi National Accelerator Laboratory (Fermilab) Linac accepts 750 keV H- ions from the front end and accelerates them to 400 MeV for injection into the Booster rapid cycling s…
Scheme for quantitative description of longitudinal drifts in the Fermilab Linac and their correction
Sheldon Rego, Ralitsa Sharankova, Alexander Shemyakin
The Fermilab Linac accepts the 0.75 MeV H- ions from the front end and accelerates them to 400 MeV for injection into the Booster. Day-to-day drifts of the longitudinal trajectory…