CIEMAT, Madrid, Spain
The aim of the AMIT cyclotron is to deliver an 8.5 MeV, 10 μA CW proton beam to a target to produce radioisotopes for PET diagnostics. Such a small cyclotron poses some challenges to the diagnostics design due to its small size. Two sets of diagnostics have been designed, each one aiming at a different phase of the machine lifecycle. During normal operation the stripping foil and the target will be used to measure the current, a dual transverse profile monitor based on a scintillating screen and a Fluorescence Profile Monitor will measure the beam position and the transverse profile. During first stages of commissioning the dual transverse profile monitor and the target will be substituted by an emittance monitor based on a pepperpot. A movable interceptive Beam Probe will be located inside the cyclotron to give information about the beam during acceleration. Additionally, a test bench for the characterization of the beam right after the exit of the ion source has been built with different instruments to measure the beam current and the transverse profile. In this paper the present status of the design, simulation and tests of the diagnostics for the AMIT cyclotron are described.
CIEMAT, Madrid, Spain
Fusion for Energy, Garching, Germany
In the frame of the material research for future fusion reactors, the construction of a simplified facility of IFMIF*, the so-called IFMIF/DONES** (Demo-Oriented Neutron Early Source), to generate sufficient material damage for the new design of DEMO . DONES will be a 40 MeV, 125 mA deuteron accelerator. The 5 MW beam will impact in a lithium flow target to yield a neutron source The detailed design of the DONES accelerator is being designed within EUROFUSION-WPENS project. One of the most critical tasks of the accelerator will be to identify the layout of beam diagnostics along the accelerator. This instrumentation must guarantee the high availability of the whole accelerator system and the beam characteristics and machine protection. This contribution will describe the beam diagnostics selected along the accelerator, focusing in the High Energy Beam Transport line, in charge of shaping the beam down to the high power target. The main open questions will be analyzed and the path to obtain the detailed design by the end of the project detailed.
*, IFMIF Intermediate Engineering Design Report
**, DONES Conceptual Design Report, April 2014
CIEMAT, Madrid, Spain
The LIPAc accelerator will be a 9 MeV, 125 mA CW deuteron accelerator which aims to validate the technology that will be used in the future IFMIF accelerator. Several types of Beam Position Monitors BPMs- are placed in each section of the accelerator to ensure a good beam transport and minimize beam losses. LIPAc is presently under installation and commissioning of the second acceleration stage at 5 MeV. In this stage two types of BPMs are used: four striplines to control the position at the Medium Energy Beam Transport line (MEBT), and three striplines to precisely measure the mean beam energy at the Diagnostics Plate. The seven pickups have been installed and assembled in the beamlines after characterization in a wire test bench, and are presently been commissioned in the facility. In addition, the in-house acquisition system has been fully developed and tested in the wire test bench at CIEMAT. In this contribution, the results of the beam position monitors characterization, the tests carried out during the assembly and the first measurements with the electronics system will be reported.