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30 S.(2016). doi:10.15120/GSI-2016-03763, This Conceptual Design Report (CDR) presents the plans of the Super-FRS Experiment Collaboration for a variety of experiments, which build on the versatile high-resolution separator and spectrometer performance of the Super-FRS. The characteristic feature of these experiments is the fact that they use the separator as an integral part of the measurement. These experiments build on the experience of the collaboration and their scientific program pursued at the FRS in the last 25 years, but also includes recently developed novel topics.Under these premises, the Super-FRS Experiment Collaboration has identified ten major topics of current interest and with far-reaching scientific potential. In this CDR, the scientific case is briefly recapitulated and the conceptual design of the experiments, the setups and their implementation are described. Much of the needed equipment is already available or, if not, will be realized with new, additional resources and efforts outside the FAIR Cost Books. The related R&D works and some pilot experiments can be carried out at the existing FRS of GSI in FAIR Phase-0. On the midterm, the science program of this collaboration can start at the commissioning phase of the Super-FRS and will continue on the long term with the established full performance. Accordingly, the prototype equipment and other already existing devices can be tested and used at the FRS and can later, when completed or upgraded, be moved to the Super-FRS, see Appendix I. The related developments and organization of the Super-FRS Experiment Collaboration are described in Appendices II and III, respectively; the collaboration partners and institutes are listed in Appendix IV. The Super-FRS Experiment Collaboration is formally and firmly established and is a comprising part of the NUSTAR Collaboration. A large variety of modern nuclear physics experiments with new scientific possibilities and outstanding scientific potential were presented in the scientific program (GSI-Report 2014-4), which was very positively evaluated and approved by the FAIR-ECE in its 4th meeting in June 2014. In its report, the ECE encouraged the collaboration to develop TDRs. The present CDR is the next step on the way to TDRs for the ancillary equipment, that shall be integrated in the Super-FRS., Published by GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt

Penning-trap measurements on stable 92, 94-98, 100Mo isotopes have been performed with relative accuracy of \ensuremath1⋅10−8\ensuremath1⋅10−8 with the JYFLTRAP Penning-trap mass spectrometer by using 85Rb as a reference. The Mo isotopes have been found to be about 3keV more bound than given in the Atomic Mass Evaluation 2003 (AME03). The results confirm that the discrepancy between the ISOLTRAP and JYFLTRAP data for 101-105Cd isotopes was due to an erroneous value in the AME03 for 96Mo used as a reference at JYFLTRAP. The measured frequency ratios of Mo isotopes have been used to update mass-excess values of 30 neutron-deficient nuclides measured at JYFLTRAP. peerReviewed

This article reviews the decay studies of neutron-deficient nuclei within the mass region \ensuremathA=56--100 performed at the Ion-Guide Isotope Separator On-Line (IGISOL) facility in the University of Jyväskylä over last 25 years. Development from He-jet measurements to on-line mass spectrometry, and eventually to atomic mass measurements and post-trap spectroscopy at IGISOL, has yielded studies of around 100 neutron-deficient nuclei over the years. The studies form a solid foundation to astrophysical rp -process path modelling. The focus is on isomers studied either via spectroscopy or via Penning-trap mass measurements. The review is complemented with recent results on the ground and isomeric states of 90Tc . The excitation energy of the low-spin isomer in 90Tc has been measured as \ensuremathEx=144.1(17) keV with JYFLTRAP double Penning trap and the ground state of 90Tc has been confirmed to be the (8+) state with a half-life of \ensuremathT1/2=49.2(4) s. Finally, the mass-excess results for the spin-gap isomers 53Co m and 95Pd m and implications from the JYFLTRAP mass measurements for the (21+) isomer in 94Ag are discussed. peerReviewed

Various experiments and measurements in the field of natural sciences have given us a great body of information about structure of matter and the evolution of the Universe. Though the increase in knowledge in these fields has been remarkable, further studies are required to answer the questions that have arisen. In the fields of nuclear structure and astrophysics, central questions concern the processes which lead to production of the chemical elements. It is assumed that the elements heavier than iron originate from collapsing stars or stellar collisions, the process depending on the nuclear forces and symmetries in the rare isotopes. Nuclear Structure, Astrophysics and Reactions (NUSTAR) collaboration in the Facility for Antiproton and Ion Research (FAIR) will utilize the intensive secondary beams from Superconducting Fragment Separator (Super-FRS) to investigate the processes leading to production of the elements. The secondary beams are produced by accelerating and colliding ions up to Uranium into a target, and then by steering the secondary particles that are produced in the collision through the Super-FRS. The Super-FRS separates the desired isotopes from other secondary particles and steers them to the experiments. The first part of this thesis describes a detector that can be used as a beam monitoring detector in the Super-FRS. The detector is a novel concept, combining the best parts of two gas filled detector types, Time Projection Chamber (TPC) and Gas Electron Multiplier (GEM). The TPC part is based on the knowledge obtained on the TPC-detectors that are in use in the current fragment separator of GSI-facility, the predecessor of the FAIR-facility. The addition of GEM-detector as an amplification stage, in addition to adjustment of the amplification, it will reduce the ion feedback that impair the resolution and the efficiency of the standard TPC-detectors. The second part focuses on the GEM-amplification part. In the harsh environment of the Super-FRS, the detectors that will be installed have to be well defined and manufactured from high quality components. Because of these reasons, an optical scanning system was developed to support the quality assurance chain that is needed in the manufacturing of the GEM-detectors. The system was also used in the endeavors to understand the processes that lead to possible breakdown of the detectors. In addition of the breakdown, studies of recovering broken detector components were initiated. Eri luonnontieteiden osa-alueet ovat pyrkineet tutkimaan ja selittämään aineen rakennetta ja maailmankaikkeuden kehitystä. Vaikkakin edistys näillä alueilla on ollut valtavaa, lisätutkimuksia tarvitaan, jotta kyetään lisäämään tietämystä puuttuvista yksityiskohdista. Ydinfysiikan ja ydinastrofysiikan aloilla yhtenä merkittävää kysymyksenä on aineen, erityisesti alkuaineiden muodostuminen. Nykytietämyksen mukaan kaikki rautaa raskaammat alkuaineet syntyvät raskaiden tähtien elinkaaren loppupuolella tähtien romahtaessa tai niiden törmätessä toisiinsa. Nuclear Structure, Astrophysics and Reactions (NUSTAR) kollaboraatio tulee tutkimaan FAIR-tutkimuslaitoksessa tapahtumasarjoja, jotka johtavat alkuaineiden syntyyn. Tätä tarkoitusta varten FAIR-tutkimuslaitokseen rakennetaan ydinfragmenttiseparaattori Super-FRS, joka kykenee erottelemaan siihen tuotetuista sekundäärisuihkuista halutut isotoopit ja ohjaamaan ne koealueille erilaisia mittauksia varten. Tämän väitöskirjan alkuosa esittelee Super-FRS separaattorin, sekä uudenlaisen ilmaisintyypin, jota voidaan käyttää ydinfragmenttiseparaat-torin hiukkassuihkun seurannassa. Ilmaisin yhdistelee parhaat puolet kahdesta erilaisesta kaasutäytteisestä hiukkasilmaisimesta, aikaprojektiokammiosta (TPC) ja GEM-ilmaisimesta. Tutkimuksen lähtökohtana olivat FAIR-laitoksen edeltäjän, GSI-tutkimuslaitoksen ydinfragmenttiseparaattorilla käytössä olevat aikaprojektiokammiot, joissa modernia GEM-tekniikkaa ei ole käytetty. Lisäämällä GEM-ilmaisimet vahvistuselementiksi, aikaprojetiokammioiden tehokkuutta voidaan parantaa uuden separaattorin vaatimalle tasolle. Toinen osa keskittyy GEM-ilmaisimiin. Super-FRS separaattorin säteily-ympäristössä sinne asennettavilta ilmaisimilta vaaditaan hyvää säteilynkestoa. Lisäksi ilmaisimien toiminta eri tilanteissa tulee olla hyvin määriteltyä, jotta laitteiston käyttöikä olisi mahdollisimman pitkä. Käyttöikään vaikuttaa asennetun laitteiston laatu. Tämän vuoksi kehitettiin optinen kuvantamisjärjestelmä, jolla voidaan tarkkailla GEM-ilmaisimien laatua. Käyttämällä erilaisia menetelmiä, voidaan mitata ja tutkia hyvin pieniä yksityiskohtia, kuten kalvossa olevien reikien halkaisijaa ja muotoa. Laitteistolla kyetään myös paikallistamaan kalvoissa olevia oikosulkuja, jotka heikentävät ilmaisinkalvojen signaalinvahvistusta. Tehtyä tutkimusta GEM-tekniikkaan perustuvien ilmaisimien käytöstä voidaan suoraan hyödyntää myös muissa sovelluksissa ydinfysiikallisten kokeiden ulkopuolella. Kehitetyt säteilynilmaisimet ovat omiaan säteilyn mittaukseen kaikissa ympäristöissä, joissa tarvitaan laaja-alaista helposti muokattavaa mittalaitteistoa. Tälläisiä aloja ovat esimerkiksi lääketieteen kuvantaminen, säteilynvalvonta ja erilaiset avaruussovellukset.