Franz von Sales -Patron der Journalisten

"Man behandelt manchmal die Schriftsteller zu hart. Man fällt sehr rasch ein strenges Urteil über sie und offenbart dabei selbst mehr an Taktlosigkeit, als jene an Unklugheit, da sie ihre Schriften voreilig veröffentlichen. Dieses unüberlegte Urteilen gefährdet schwer sowohl das Gewissen der Urteilenden als auch die Unschuld der Angeklagten. Manche schreiben Albernheiten, andere gefallen sich wieder in plumpem Tadel."' Dieses Plädoyer für oft zu Unrecht kritisierte Schriftsteller stammt aus der Feder des hl. Franz von Sales, des Patrons der katholischen Journalisten und Schriftsteller. Am 26. Jänner 1923 erließ Papst Pius XI. anläßlich des dreihundertsten Todestages des Heiligen die Enzyklika "Rerum omnium". In diesem Rundschreiben stellte der Papst den Bischof von Genf den katholischen Journalisten und Schriftstellern als ihren Patron zur Seite. (...)  EnglishSince 1923 St. Francis de Sales, Bisbop ofGeneva, has been patron ofCatholic journalists and authors. An investigation into the etfectiveness oftbis patronage in various media and institutions has shown that it is a badly-shaken tradition oftwentieth-century church history, even though the mass media have constantly been growing in significance. The explanation is that Francis de Sa!es, a seventeenth century saint, is no Ionger considered by journalists tobe relevant for the problems ofmass communication nowadays. The present paper sets out, therefore, to present a new and to reinterpret for today those arguments and considerations which led Pope Pius XI to choose Francis de Sales as patron ofjournalists. It emerges that the Bisbop ofGeneva can even today be ofassisstance to journalists by indicating objectives and directions. Thus a code ofhonour for journalists has been drawn up, based on the Salesian spirit.

The front-end of IsoDAR

The Isotope Decay-At-Rest (IsoDAR) experiment is a cyclotron based neutrino oscillation exper- iment that is capable of decisively searching for low-mass sterile neutrinos. This paper outlines two new approaches that the IsoDAR collaboration are pursuing in order to increase the amount of H + 2 captured in the cyclotron through innovations in the design of the front-end. A new dedicated multicusp ion source (MIST-1) is currently being commissioned and tested at the Plasma Science and Fusion Center (PSFC) at MIT. Based on previous results from this type of ion source, we ex- pect to be able to achieve an H+₂ current density that will be sufficient for the IsoDAR experiment. We also discuss the results of a new investigation into using a radio frequency quadrupole (RFQ) as a high-efficiency buncher to improve the injection efficiency into the cyclotron.National Science Foundation (U.S.) (Grant 1505858)National Science Foundation (U.S.) (Grant 1626069

A New Family of High-Current Cyclotrons for Isotope Production

We have developed a new family of compact cyclotrons designed to accelerate record-high currents of ions with charge-to-mass of 1/2. We have detailed engineering designs for a 5 mA H2+ cyclotron (delivering 10 mA of protons) and are extending this concept to 5 mA of deuterons (D+). The innovations enabling the high currents are: 1) bunching with an RFQ that enables efficient capture and 2) space-charge-mitigated stable bunch formation established in the first few turns. These developments can be applied to cyclotron from 5 to around 60 MeV/amu. A 20 MeV/amu deuteron cyclotron would be effective for 225Ac production via (n,2n) with fast neutrons generated by deuteron breakup in beryllium.Comment: 22 pages, 9 figures, paper to be submitted to the Journal of Radioanalytical and Nuclear Chemistry, as part of the Proceedings of the 11th International Conference on Isotopes, held in Saskatoon, Canada, July 202

AN RFQ DIRECT INJECTION SCHEME FOR THE ISODAR HIGH INTENSITY H+₂ CYCLOTRON

IsoDAR is a novel experiment designed to measure neutrino oscillations through e disappearance, thus providing a definitive search for sterile neutrinos. In order to generate the necessary anti-neutrino flux, a high intensity primary proton beam is needed. In IsoDAR, H+2 is accelerated and is stripped into protons just before the target, to overcome space charge issues at injection. As part of the design, we have refined an old proposal to use an RFQ to axially inject bunched H+2 ions into the driver cyclotron. This method has several advantages over a classical low energy beam transport (LEBT) design: (1) The bunching efficiency is higher than for the previously considered two-gap buncher and thus the overall injection efficiency is higher. This relaxes the constraints on the H+2 current required from the ion source. (2) The overall length of the LEBT can be reduced. (3) The RFQ can also accelerate the ions. This enables the ion source platform high voltage to be reduced from 70 kV to 30 kV, making underground installation easier. We are presenting the preliminary RFQ design parameters and first beam dynamics simulations from the ion source to the spiral inflector entrance.National Science Foundation (U.S.). Division of Physics (NSF-PHY-1148134)MIT Energy Initiative Seed Fund Progra