arXiv subjects

Rene Padilla

Publications and source records attributed to Rene Padilla.

3 recordsLinked to original sources

arXiv2005

Booster 6-GeV Study

Since a wider aperture has been obtained along the Booster beam line, this opens the opportunity for Booster running a higher intensity beam than ever before. Sooner or later, the available RF accelerating voltage will become a new limit for the beam intensity. Either by increasing the RFSUM or by reducing the accelerating rate can achieve the similar goal. The motivation for the 6-GeV study is to gain the relative accelerating voltage via a slower acceleration.

physics.acc-ph↗

arXiv2005

Improvement in RF Curves for Booster Running at High Intensities

A feed-forward ramp can be implemented in Booster to compensate the beam energy loss at different beam intensities for the purpose of minimizing the radial error signal. This can be done only when we have a good understanding about the dependence between the beam energy loss per turn and the beam intensity experimentally. Besides, based upon this understanding we can predict the required accelerating voltage at the transition crossing for different beam intensities, which can be extremely helpful for Booster running at higher beam intensities than ever before.

physics.acc-ph↗

arXiv2004

Booster Synchrotron Frequency Below Transition

The dipole mode synchrotron frequency is a basic beam parameter; it and a few similarly basic quantities measured at small time intervals serve to characterize the longitudinal beam dynamics throughout the acceleration cycle. The effective accelerating voltage, in conjunction with the amount of rf voltage required for the acceleration, is important for the estimate of the beam energy loss per turn. The dipole mode frequency can be used to obtain the effective accelerating rf voltage, providing that it can be measured precisely. The synchrotron frequency measured from the synchrotron phase detector signal (SPD) generally agrees well with calculation, and it can be applied for such purposes as inferring the effective rf voltage.

physics.acc-ph↗