{"id":10957,"date":"2025-05-19T16:41:12","date_gmt":"2025-05-19T14:41:12","guid":{"rendered":"https:\/\/cms.zdv.uni-mainz.de\/fb08-kernphysik\/?page_id=10957"},"modified":"2025-09-15T17:11:15","modified_gmt":"2025-09-15T15:11:15","slug":"accelerator-mesa-experiments","status":"publish","type":"page","link":"https:\/\/www.kernphysik.uni-mainz.de\/en\/accelerator-mesa-experiments\/","title":{"rendered":"MESA accelerator & experiments"},"content":{"rendered":"\n<\/jgu-base-pageheader>\n

Johannes Gutenberg University Mainz<\/a> > Faculty 08<\/a> > Physics<\/a> > Physics research<\/a> > Institutes & research facilities<\/a> > Institute of Nuclear Physics<\/a> > MESA accelerator & experiments<\/p>\n\n

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As part of the PRISMA+ Cluster of Excellence, the MESA electron accelerator is being built on the site of the Institute of Nuclear Physics. It is currently still under construction.<\/p>\n\n\n\n

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In the MESA (M<\/strong>ainz E<\/strong>nergy-Recovering S<\/strong>uperconducting A<\/strong>ccelerator) accelerator, electrons are first pre-accelerated to an energy of 5 MeV using the MAMBO linear accelerator before entering the main accelerator, where they are accelerated to up to 155 MeV, depending on the operating mode. The special thing about MESA is that the accelerator implements the Energy Recovery Linac (ERL) concept, which was only developed a few years ago. This means that the energy of a large proportion of the accelerated electrons can be recovered with the aid of so-called superconducting cavity resonators, which means that MESA is significantly more energy-efficient than conventional accelerators and can achieve an extremely high beam intensity with the net energy input: Up to 6*1016<\/sup> electrons per second (corresponding to 10 milliamperes of electron current) will hit the sample under investigation, increasing the chance of detecting very rare events. In addition, MESA will have a very high beam quality, as the energy of all electrons is very homogeneous. Taken together, MESA will provide optimal conditions for carrying out experiments with very high precision – e.g. in terms of energy resolution or event rate. <\/p>\n\n\n\n

You can also find a visualization in the following explanatory video<\/a>.<\/p>\n\n\n<\/jgu-base-accordionitem>\n\n<\/jgu-base-accordion>\n<\/div>\n\n\n\n

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Prof. Kurt Aulenbacheraulenbac@uni-mainz.de<\/a>+49 6131 39 25804<\/p>\n<\/div>\n<\/div>\n\n\n\n

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At the MAGIX experiment (MA<\/strong>inz G<\/strong>as I<\/strong>njectionTargetEx<\/strong>periment), electron scattering experiments are carried out on samples in the form of a gas jet. The scattered electrons are detected using two spectrometers. In addition, the backscattered gas particles can be detected using a silicon strip detector. <\/p>\n\n\n\n \n\n \n\n

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