18 research outputs found
Performance of the magnetic system of a 12 MeV UPC race-track microtron
The performance of the magnetic system of a 12 MeV electron race-track microtron (RTM) which is under construction at the Universitat Politècnica de Catalunya (UPC) is described. The RTM magnetic system consists of two four-pole end magnets with the main field level about 0.8 T, one quadrupole and four beam extraction dipoles. As a source of the magnetic field in these magnets a Sa-Co rare earth permanent magnet material is used. This helps to get a quite compact design of the RTM and allows to place the magnetic systems in a high vacuum environment of the accelerator vacuum chamber. We discuss results of numerical simulations of the tuning of the end magnets by mean of special tuners and describe their engineering design which permits to assemble the magnets and fix the Sa-Co blocks without gluing. Also a method and results of magnetic field distribution measurements and magnet tuning are reported.Postprint (published version
Rare-earth end magnets of a miniature race-track microtron and their tuning
We report basic results on the tuning of permanent end
magnets of a compact 12 MeV race-track microtron
(RTM) which is under construction at the Technical
University of Catalonia. They are magnetic systems
composed of four dipoles with the rare-earth permanent
magnet (REPM) material used as a source of the magnetic
field. The steel poles of the magnets are equipped with
tuning plungers which allow to adjust the magnetic field
level. In the article we shortly describe the tuning
procedure and different techniques that were used in order
to fulfill strict requirements of the field characteristics of
the end magnets. It is shown that the obtained magnetic
systems provide correct beam trajectories in the 12 MeV
RTM. More detailed information about tuning procedure
and results of tuning will be published elsewhere.Postprint (published version
Quadrupole lens and extraction magnets of a miniature race-track microtron
A compact 12 MeV race-track microtron (RTM) which
is under construction at the Technical University of
Catalonia includes a quadrupole magnet for horizontal
beam focusing and four dipole magnets for beam
extraction. As the source of the magnetic field in these
magnets a rare-earth permanent magnet (REPM) material
is used. In the article the main design characteristics of
the quadrupole lens and extraction dipoles are described
and a procedure of tuning of their magnetic fields is
described. We report on the manufacturing of these
magnetic systems and results of the tuning of their
magnetic fields.Postprint (published version
Current status of the 12 MeV UPC race-track microtron
A compact race-track microtron (RTM) with the maximal output energy 12 MeV is under construction at the Universitat Politècnica de Catalunya (UPC) in collaboration with the Skobeltsyn Institute of Nuclear Physics of the Moscow State University, CIEMAT and a few Spanish industrial companies and medical centers. The RTM end magnets are four-pole systems with the magnetic field created by a rare-earth permanent magnet material. As a source of electrons a 3D off-axis electron gun is used. These elements together with a C-band accelerating structure, dipole magnets, which allow to extract the electron beam with energy from 6 MeV to 12 MeV in 2 MeV step, and a focusing quadrupole are placed inside a vacuum chamber. We report on the current status of the technical design and results of tests of some of the components.Postprint (published version
Performance of the magnetic system of a 12 MeV UPC race-track microtron
The performance of the magnetic system of a 12 MeV electron race-track microtron (RTM) which is under construction at the Universitat Politècnica de Catalunya (UPC) is described. The RTM magnetic system consists of two four-pole end magnets with the main field level about 0.8 T, one quadrupole and four beam extraction dipoles. As a source of the magnetic field in these magnets a Sa-Co rare earth permanent magnet material is used. This helps to get a quite compact design of the RTM and allows to place the magnetic systems in a high vacuum environment of the accelerator vacuum chamber. We discuss results of numerical simulations of the tuning of the end magnets by mean of special tuners and describe their engineering design which permits to assemble the magnets and fix the Sa-Co blocks without gluing. Also a method and results of magnetic field distribution measurements and magnet tuning are reported
Performance of the magnetic system of a 12 MeV UPC race-track microtron
The performance of the magnetic system of a 12 MeV electron race-track microtron (RTM) which is under construction at the Universitat Politècnica de Catalunya (UPC) is described. The RTM magnetic system consists of two four-pole end magnets with the main field level about 0.8 T, one quadrupole and four beam extraction dipoles. As a source of the magnetic field in these magnets a Sa-Co rare earth permanent magnet material is used. This helps to get a quite compact design of the RTM and allows to place the magnetic systems in a high vacuum environment of the accelerator vacuum chamber. We discuss results of numerical simulations of the tuning of the end magnets by mean of special tuners and describe their engineering design which permits to assemble the magnets and fix the Sa-Co blocks without gluing. Also a method and results of magnetic field distribution measurements and magnet tuning are reported
Flah butt welding bainitic steels
Translated from Ukrainian (Avtom. Svarka 1997 (2) p. 9-13)Available from British Library Document Supply Centre-DSC:9023.190(VR-Trans--8174)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
Quadrupole lens and extraction magnets of a compact race-track microtron
The compact race-track microtron (RTM) with a maximum energy of 12 MeV that is under construction at the Technical University of Catalonia consists of a quadrupole lens for horizontal focusing of the
beam and four dipole magnets for the extraction of the beam from the accelerator. The source of the magnetic
field in the magnets is a rare-earth permanent magnet (REPM). The main characteristics of the quadrupole
lens and the extraction magnets and the procedure for the tuning of their magnetic fields are described.Postprint (published version
The characteristics of fibre tufts produced during carding
SIGLEAvailable from British Library Document Supply Centre- DSC:DX83435 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Quadrupole lens and extraction magnets of a miniature race-track microtron
A compact 12 MeV race-track microtron (RTM) which
is under construction at the Technical University of
Catalonia includes a quadrupole magnet for horizontal
beam focusing and four dipole magnets for beam
extraction. As the source of the magnetic field in these
magnets a rare-earth permanent magnet (REPM) material
is used. In the article the main design characteristics of
the quadrupole lens and extraction dipoles are described
and a procedure of tuning of their magnetic fields is
described. We report on the manufacturing of these
magnetic systems and results of the tuning of their
magnetic fields