Dr
Yuan Liu
(Oak Ridge National Laboratory)
12/05/2015, 17:00
Poster Presentation
Multi-step resonance laser ionization has become an essential tool for the production of isobarically pure radioactive ion beams at the Isotope Separator On-Line (ISOL) facilities around the world. A resonant ionization laser ion source (RILIS) had been developed [1] for the former Holifield Radioactive Ion Beam Facility (HRIBF) of Oak Ridge National Laboratory (ORNL). The RILIS employs the...
Daniel Santiago-Gonzalez
(LSU, ANL)
12/05/2015, 17:00
Poster Presentation
The HELIcal Orbit Spectrometer (HELIOS) has been used to successfully study reactions in inverse kinematics with both stable and radioactive beams; however, initial studies were limited to solid targets. In addition, in the original implementation of HELIOS a telescope of silicon detectors was used for recoil detection and, while it provided particle identification information for recoils...
Dr
Aurelien Blanc
(ILL Grenoble)
12/05/2015, 17:00
Poster Presentation
The accurate knowledge of the fission product properties of actinides is important for the studies of innovative nuclear fuel cycles and also for the understanding of the fission process. Until now fission models cannot predict the fission yields with an acceptable accuracy. A collaboration between LPSC (Laboratoire de Physique Subatomique et de Cosmologie), ILL (Institut Laue-Langevin) and...
65.
Development of the detector system for β-decay spectroscopy at the KEK isotope separation system
Sota Kimura
(University of Tsukuba)
12/05/2015, 17:00
Poster Presentation
The KEK Isotope Separation System (KISS) has been developed to study the β-decay properties of the neutron-rich nuclei around neutron number N = 126 which are essential for understanding how the heavy, noble-metal elements, such as gold and platinum, are formed in the r-process. It is desirable that the detector system for β-decay spectroscopy at the KISS should be highly efficient for...
Dr
James Maloney
(TRIUMF)
12/05/2015, 17:00
Poster Presentation
COSY Infinity is a differential-algebra based simulation code which allow accurate calculation of transfer maps to arbitrary order. COSY's existing internal procedures were modified to allow electrostatic elements to be specified using an array of field potential data from the midplane. Additionally, a new procedure was created allowing electrostatic elements and their fringe fields to be...
Dr
Thomas Elias COCOLIOS
(The University of Manchester)
12/05/2015, 17:00
Poster Presentation
The Collinear Resonance Ionisation Spectroscopy (CRIS) experiment at CERN ISOLDE is used for the study of nuclear electromagnetic moments and changes in the mean-square charge radii by means of multi-step, high-resolution, resonance ionisation laser spectroscopy [1]. Thanks to the high selectivity of the technique, it can also be used to separate isobaric beams and even purify isomers with a...
Dr
James Maloney
(TRIUMF)
12/05/2015, 17:00
Poster Presentation
As part of its new Advanced Rare IsotopE Laboratory (ARIEL), TRIUMF is designing a novel High Resolution Spectrometer (HRS) to separate rare isotopes. The HRS has a 180 degree bend, separated into two 90 degree magnetic dipoles, bend radius 1.2m, with an electrostatic multipole corrector between them. Second order correction comes mainly from the dipole edge curvatures, but is intended to be...
Dr
Pascal JARDIN
(CNRS/GANIL)
12/05/2015, 17:00
Poster Presentation
SPIRAL1 facility is currently under transformation [1] in order to extend the range of radioactive ion beam offered to users. It will be able to host a larger variety of Target Ion Source Systems by the end of 2016, needed to fulfill the production requirements related to the chemical variety of the isotopes demanded by the physicists. The extent of the transformation is limited by the frame...
K. Minamisono
(National Superconducting Cyclotron Lab., Michigan State University, East Lansing, MI 48824, USA & Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA)
12/05/2015, 17:00
Poster Presentation
The production of stable isotopes using off-line ion sources for online reference measurements and development of atomic transition schemes is a critical aspect in collinear laser spectroscopy (CLS). A Penning Ionization Gauge (PIG) ion source [1] has been installed for offline production of metal beams at the BEam COoler and LAser spectroscopy (BECOLA) facility [2] at the National...
Mr
Pierre Chauveau
(GANIL)
12/05/2015, 17:00
Poster Presentation
PILGRIM is a Multi-Reflection Time Of Flight Mass Spectrometer (MR-ToF-MS) currently under development at GANIL for the S3 collaboration (Super Separator Spectrometer) and dedicated to the study of very heavy and super heavy nuclei. MR-ToF-MS devices have been proven effective for isobaric separation (Resolving power over 10^5 [1]) and high precision mass measurement (mass error down to a few...
Prof.
Yuhu Zhang
(Institute of Modern Physics, Chinese Academy of Sciences)
12/05/2015, 17:00
Poster Presentation
The Isochronous Mass Spectrometry (IMS) is a storage-ring-based technique suitable for precision mass measurement of short-lived exotic nuclei produced by relativistic beam fragmentation. Several experiments employing the IMS with one time-of-flight (TOF) detector have been successfully conducted at the experimental storage ring CSRe in Lanzhou, China [1]. In these experiments, the typical...
Prof.
Fred Becchetti
(University of Michigan-Ann Arbor)
12/05/2015, 17:00
Poster Presentation
The University of Michigan(UM)-University of Notre Dame (UND) TwinSol low-energy radioactive ion beam (RIB) facility at the UND tandem van de Graaff accelerator is a 2nd generation low-energy RIB facility that has been in active use for over 15 years. Its initial configuration was subsequently modified by transporting the secondary beam through a shielding wall into a large, low background...
Dr
MARIO MAGGIORE
(LNL-INFN)
12/05/2015, 17:00
Poster Presentation
The SPES project is the new Radioactive Ion Beam facility under construction at Laboratori Nazionali di Legnaro (LNL), Italy. Neutron-rich RIBs are produced by the ISOL technique, by the interaction of a primary proton beam of 13 kW with a target of UCx. The high intensity beam is supplied by a Cyclotron able to accelerate up to 50 kW beam power (700 uA @ 70 MeV), whose installation will start...
Dr
Jerry Nolen
(Argonne National Laboratory)
12/05/2015, 17:00
Poster Presentation
The Super Separator Spectrometer (S3) is a large acceptance mass separator which is under construction for use with intense heavy ion beams at the SPIRAL2 facility at GANIL. It is a two-stage separator comprising a momentum achromat stage with two bends by magnetic dipoles to form a fully achromatic image at its focal plane and a mass spectrometer stage with one electric dipole for energy...
Dr
Tim Giles
(CERN)
12/05/2015, 17:00
Poster Presentation
The Isolde RFQ beam-cooler[1][2][3] is now an indispensable part of the operation of the Isolde facility, providing greatly improved beam quality via reduced transverse emittance. It also has an optional function to trap ions longitudinally, delivering bunched beams to experiments which need them.
During the 2013 CERN shutdown the cooler was largely rebuilt, partly to address reliability...
Prof.
Tianjue Zhang
(China Institute of Atomic Energy)
12/05/2015, 17:00
Poster Presentation
The Beijing Radioactive ion beam facility Isotope Separator On-Line(BRISOL)is a radioactive ion beam facility based on a 100MeV cyclotron providing 100μA proton beam bombarding the thick target to producing radioactive nuclei, which is transferred into ion source to producing singly ion beam. The construction and installation of BRISOL was completed in Mar., 2014,after a long time designing...
Dr
Young-Ho Park
(Institute for Basic Science)
12/05/2015, 17:00
Poster Presentation
The long-term goal of the Penning trap system of RAON is to obtain an order of magnitude higher mass accuracy for short-lived rare isotopes. For that purpose, we are developing a sympathetic cooler for highly charged ions exploiting laser-cooled Ca ions. We chose the Ca ions as the coolant because the light sources for cooling Ca ions are readily available in the markets. We installed a...
Dr
Brad Schultz
(University of Notre Dame)
12/05/2015, 17:01
Poster Presentation
One of the most significant problems in the production of rare isotopes is the simultaneous production of contaminants, often times isobaric. Thus, a high-resolution beam purification method is required which is compatible with both the low yield and short half-life of the desired radionuclide. A multi-reflection time-of-flight mass spectrometer (MR-TOF-MS) meets all these criteria, in...
Mr
JUAN MANUEL CORNEJO
(UNIVERSIDAD DE GRANADA)
12/05/2015, 17:01
Poster Presentation
Most of the Penning traps for precision measurements (MT) at Radioactive Ion Beam (RIB) facilities make use of another Penning trap located upstream in the experimental set up, to perform isobaric separation (PT) and deliver cooled samples of the ions to be measured in the MT. The PT for the project TRAPSENSOR at the University of Granada has been built to prepare ions produced off-line, with...
Thomas Ginter
(Michigan State University)
12/05/2015, 17:01
Poster Presentation
The A1900 fragment separator, located at the National Superconducting Cyclotron Laboratory of Michigan State University, is used to select rare isotopes produced in fragmentation reactions for delivery to downstream experiments. The increasing demand for studies using gas-stopping techniques [1] requires that the energy of the delivered fragments, as given from the beam rigidity measured in...
Dr
Sebastian Rothe
(CERN, Geneva, Switzerland)
12/05/2015, 17:01
Poster Presentation
The RILIS - Resonance Ionization Laser Ion Source - is the most commonly used ion source type at CERN-ISOLDE. While it is both efficient and highly element-selective its application to certain experiments is limited by the presence of isobaric contaminants due to the surface ionization of neighbouring elements. Different approaches have been demonstrated varying degrees of efficacy in tackling...
Ms
Kortney Cooper
(MSU/NSCL)
12/05/2015, 17:01
Poster Presentation
Beam thermalization plays a pivotal role in the ability of projectile fragmentation facilities to produce low-energy ion beams. The National Superconducting Cyclotron Laboratory (NSCL) employs a beam thermalization technique that involves first passing high-energy beams through solid degraders to remove the bulk of the beam’s kinetic energy. The remaining kinetic energy is then dissipated...
Mr
Donald HOUNGBO
(SCK-CEN)
12/05/2015, 17:01
Poster Presentation
In the context of the forthcoming next generation of Radioactive Ion Beams (RIBs) facilities based on the Isotope Separation On Line (ISOL) method, the development of production targets capable of dissipating the high power deposited by the primary beam is a major challenge. The concept of a high-power target based on a Lead Bismuth Eutectic (LBE) loop incorporating a heat-exchanger, a pump...
Dr
Mauricio Portillo
(Michigan State University)
12/05/2015, 17:01
Poster Presentation
The Advanced Rare Isotope Separator (ARIS) at the future Facility for Rare Isotope Beams (FRIB) at Michigan State University will produce high-intensity rare isotope beam by in-flight separation of reaction products from fragmentation and fission of primary beams with energies of 200 MeV/u and higher and with up to 400 kW of beam power. ARIS will use a variety of bending and focusing magnets,...
Mr
Sean Kuvin
(Florida State University)
12/05/2015, 17:01
Poster Presentation
Studies of rp-process nucleosynthesis in stellar explosions show that establishing the lowest l=0 and l=1 resonances is the most important step to determine reaction rates in the astrophysical rp--process path. At the RESOLUT facility, we have used the (d,n) reaction to populate the lowest p-- resonances in 26Si, and demonstrated the usefulness of this approach to populate the resonances of...
Dr
Marc Hausmann
(Michigan State University)
12/05/2015, 17:01
Poster Presentation
The efficient collection of projectile fragments and fission fragments with in-flight separators in many cases requires a large momentum acceptance. For example, the planned Advanced Rare Isotope Separator (ARIS) [1] at the future Facility for Rare Isotope Beams at Michigan State University has a 10% momentum acceptance. Such broad momentum distributions can be compressed using appropriately...
Ms
Xu Zhang
(China Institute of Atomic Energy)
12/05/2015, 17:01
Poster Presentation
From the stripping points, high intensity proton beam of compact cyclotron travels through fringe field area of the machine to the combination magnet. Starting from there the beam with various energy is transferred to the switching magnet for distribution to the beam line targets. In the design of the extraction and transport system for the compact proton cyclotron facilities, such as the...
Mr
Jukka Koponen
(University of Jyväskylä)
12/05/2015, 17:01
Poster Presentation
Since 2010 a lot has happened in the IGISOL research facility [1] at the Accelerator laboratory of the University of Jyväskylä. The facility has moved to a completely new target hall. The facility area has increased by multifold and the length of the ion transport line has grown to about 50 metres with several measurement setups and extension possibilities. Now the facility can have...
Dr
Jin Woo Yoon
(Institute for Basic Science)
12/05/2015, 17:01
Poster Presentation
RAON is a heavy ion accelerator being built in Korea. It will have both the Isotope Separator On-Line (ISOL) and the In-flight Fragmentation (IF) facilities. For efficient and Z-selective ionization, the resonance ionization laser ion source (RILIS) will be included in the RAON ISOL facility. Recently, we have installed the laser system, composed of all solid state Ti:sapphire lasers developed...
A. Piechaczek
(Oak Ridge Associated Universities)
12/05/2015, 17:01
Poster Presentation
ORISS (Oak Ridge Isomer/Isobar Spectrometer/Separator) is a Time-of-Flight (ToF) based high resolution and high transmission instrument. Designed for decay spectroscopy experiments, the performance goals are a mass resolving power (FWHM) of 400,000 and a transmission of 50%. As a separator, it will provide isobarically pure samples of any rare isotope and of many isomers. As a spectrometer,...
Thomas Baumann
(NSCL / MSU)
12/05/2015, 17:01
Poster Presentation
The discovery of an isotope is not only a prerequisite for the future investigation of its nuclear structure, but it also helps us to delineate the limits of nuclear binding and thus has direct implications for fundamental questions in nuclear physics and nuclear astrophysics. Besides the roughly 300 stable isotopes there are about 2700 that have been identified so far, but there are still...
Dr
Daniel Lascar
(TRIUMF)
12/05/2015, 17:01
Poster Presentation
The Penning trap cyclotron frequency is proportional to the charge state, q, so therefore measuring the larger frequencies of highly charged ions (HCIs) yields a corresponding increase in the precision of mass measurements. This was demonstrated in the mass measurement of the superallowed β-emitter 74Rb8+[1]. The process of charge breeding HCIs, however, introduces a large energy spread into...
Dr
Andrey Popeko
(Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Russia)
12/05/2015, 17:01
Poster Presentation
Over the past 15 years, the electrostatic recoil separator VASSILISSA has been used for investigations of evaporation residues (ERs) produced in heavy-ion fusion reactions. In the course of the experimental work, a bulk of data on ERs formation cross sections was collected. In 2004–2010, the isotopes of Fm, Md, No, and Lr were studied using the GABRIELA (Gamma Alpha Beta Recoil Investigations...
Mr
James Kelly
(University of Notre Dame)
12/05/2015, 17:01
Poster Presentation
A multi-reflection time-of-flight mass spectrograph (MR-ToF) is currently being designed for the future University of Notre Dame radioactive ion beam facility. This device will be used to provide isobarically pure ion bunches to experiments. We are currently designing an off-line testing setup for the MR-ToF. To characterize and optimize the MR-ToF, and to guide the design, we performed the...
Mr
Juan Manuel Cornejo
(Universidad de Granada)
12/05/2015, 17:01
Poster Presentation
Penning traps are used at many facilities to perform direct high-precision mass measurements on stable and/or radioactive nuclides. For stable or long-lived nuclides, the developments are going mainly in the direction of improving precision. In the case of very exotic nuclei, an important objective is to enhance sensitivity. This motivates further work on conventional techniques, initially...
Mr
Adrian Valverde
(Michigan State University / National Superconducting Cyclotron Laboratory)
12/05/2015, 17:01
Poster Presentation
In high precision Penning trap mass spectrometry of rare isotopes, beam purity is an important consideration when making measurements because the contamination of the ions of interest with other particles results in a shift of the measured mass. This is of particular concern at the Low Energy Beam and Ion Trap (LEBIT) facility [1] at the National Superconducting Cyclotron Laboratory - a rare...
Dr
Shixiang PENG
(Peking University)
12/05/2015, 17:01
Poster Presentation
Beijing ISOL is an isotope separation on line (ISOL) type rare ion beam facility for both basic science and applications, which is proposed jointly by Peking University (PKU) and China Institute of Atomic Energy (CIAE) [1]. It can be driven by a reactor or a deuteron accelerator. The driver accelerator can accelerate the deuteron beam up to 40 MeV with maximum beam current of 10 mA. Proton...
Dr
Antonio C.C. Villari
(Facility for Rare Isotope Beams - MSU)
12/05/2015, 17:01
Poster Presentation
The Ion Conveyor is a new apparatus devoted to transport ions fast and efficiently under moderate gas pressure. Such a device is particularly useful for long transition regions from relatively high pressures into vacuum. At the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University an Ion Conveyor will be used to extract rare isotopes from a new device to thermalize...
Dr
Amanda Gehring
(Los Alamos National Laboratory)
12/05/2015, 17:01
Poster Presentation
Projectile fragments can be slowed and thermalized in buffer gas to supply rare ions to low energy experiments. I will present studies of “ion surfing” [1], a method for transporting ions through gas-filled devices that uses a RF gradient to repel the ions from the walls. Instead of relying on a fixed potential gradient to guide the thermal ions through the length of the cell, the ions are...
Dr
Giovanni Bisoffi
(Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali di Legnaro)
12/05/2015, 17:01
Poster Presentation
SPES (Selective Production of Exotic Species) is a project approved and financed by INFN (Istituto Nazionale di Fisica Nucleare), aimed to produce neutron-rich Radioactive Ion Beams (RIBs) according to the ISOL (Isotope Separation On Line) technique [1]. The core of the SPES facility is constituted by the TIS (Target - Ion Source) system, that converts a stable proton beam into a RIB...
Mr
Yulin Tian
(Institute of Modern Physics, Chinese Academy of Sciences)
12/05/2015, 17:01
Poster Presentation
The suitable energy range of viscous damping force (VDF) model, hard sphere collision (HSC) model, and realistic interaction potential (RIP) model have been investigated by comparing the stopping ranges from the simulated data with those from SRIM code.
Using the VDF model, together with the Runge–Kutta method, ion motions in an ideal Penning Trap and different excitation conditions have...
Dr
Mikhail Avilov
(FRIB Michigan State University)
12/05/2015, 17:01
Poster Presentation
The Facility for Rare Isotope Beams (FRIB) under construction at Michigan State University is based on a 400 kW heavy ion accelerator and uses in-flight production and separation to generate rare isotope beams. The first section of the fragment separator houses the rare isotope production target and a primary beam dump to absorb unreacted primary beams. The experimental program will use ion...
Prof.
Ushasi Datta
(Saha Institute Of Nuclear Physics)
12/05/2015, 17:01
Poster Presentation
Recent RIB facilities combined with advance detector systems provides us unique opportunity to probe the exotic properties of the nuclei with unusual neutron to proton ratio. The studies of these properties enlighten new directions in understanding fundamental laws of quantum many body systems. In this presentation, we want to discuss the unique utilization of three different types of ultra...
Prof.
Maxime Brodeur
(University of Notre Dame)
12/05/2015, 17:01
Poster Presentation
Thanks to extensive experimental efforts that led to a precise determination of important super-allowed pure Fermi transition experimental quantities, we now have a very precise value for Vud that leads to a stringent test of the CKM matrix unitarity. Despite this achievement, measurements in other less precise systems remain relevant as conflicting results could uncover unknown systematic...