Abstract
In this paper, the technicalities performed to obtain a pulsed beam at the CMAM facility will be explained. The pulsed beam has been characterized with an 8 MeV proton beam, using an existing equipment at CMAM: two pairs of electrostatic plates (RASTER) that deflect the beam, commonly used for homogeneous irradiation of large areas. A pulsed beam is used in many areas such as nuclear physics, material science and, in particular, for proton-therapy medical studies. Rectangular and pyramidal functions have been used to generate different pulses and characterize the response of the RASTER. The results point out that the pulses obtained are suitable for preclinical proton-therapy studies in the FLASH regime, which consists on fractionating the dose in time with short and intense pulses. The set-up for the characterization has been a function generator and a Si-PM outside the chamber.
Highlights
The Centro de Micro-Análisis de Materiales (CMAM) is one of the two ion accelerators research centers in Spain. It belongs to the Universidad Autónoma de Madrid (UAM) and the building that hosts the laboratory is at the university campus
The characterization of the pulses has been done with a generator function, a Si-PM installed outside the irradiation chamber of the implantation line (IMP) line and a picoScope to register and trigger the voltage signals in each of the three steps: the input function, the output voltage at the electrostatic plates and the signal detected in the Si-PM
In this paper we present the characterization of the first pulsed beam in air obtained at the CMAM facility
Summary
The Centro de Micro-Análisis de Materiales (CMAM) is one of the two ion accelerators research centers in Spain. It belongs to the Universidad Autónoma de Madrid (UAM) and the building that hosts the laboratory is at the university campus. The facility has requested funds to upgrade the accelerator hall installing a pulsed light-ion source. It will be installed in the low energy part of the accelerator and will feed up the six experimental lines.
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