Beam monitor calibration of a synchrotron-based scanned light-ion beam delivery system

Scanned Ion Beam Therapy of Moving Targets with Beam Tracking

Gating for scanned ion beam therapy

In treatment of motion affected tumours by means of a scanned particle beam severe under and over dosage can occur due to the interplay effect. By using gated beam delivery effective target motion is reduced, but even for the residual motion the interplay effect can lead to unsatisfactory dose distributions. Furthermore, an appropriate motion monitoring system is essential since beam delivery h...

Comment on 'Proton beam monitor chamber calibration'.

We comment on a recent article (Gomà et al 2014 Phys. Med. Biol. 59 4961-71) which compares different routes of reference dosimetry for the energy dependent beam monitor calibration in scanned proton beams. In this article, a 3% discrepancy is reported between a Faraday cup and a plane-parallel ionization chamber in the experimental determination of the number of protons per monitor unit. It is...

A phase-space beam position monitor for synchrotron radiation

The stability of the photon beam position on synchrotron beamlines is critical for most if not all synchrotron radiation experiments. The position of the beam at the experiment or optical element location is set by the position and angle of the electron beam source as it traverses the magnetic field of the bend-magnet or insertion device. Thus an ideal photon beam monitor would be able to simul...

The DELTA Beam-Based BPM Calibration System

A third-generation synchrotron light source like DELTA (1) requires a measuring system to determine the beam position with high resolution and great accuracy with respect to the center of the quadrupole magnets. This paper presents the beam-based BPM calibration system developed for DELTA, providing a calibration accuracy of about 150 μm. We describe the basic idea of the measurements, the inst...