Mr
Christopher Izzo
(National Superconducting Cyclotron Laboratory/ Michigan State University)
11/05/2015, 16:30
Poster Presentation
The use of Penning traps in nuclear physics has brought unprecedented precision to nuclear mass measurements. As the only Penning trap system installed at a projectile-fragmentation facility, the LEBIT facility [1] at NSCL has played a unique role in the mass measurement field, offering access to elements that are difficult to produce at other rare-isotope-beam facilities. The high level of...
Dr
Antti Saastamoinen
(Cyclotron Institute, Texas A&M University, College Station, TX, USA)
11/05/2015, 16:30
Poster Presentation
Over the past years we have done several studies of beta-delayed proton emitters of astrophysical interest by implanting the nuclei of interest into Si detectors of various segmentations [1-5]. In these studies it was realized that shrinking the physical detection volume of elements in Si detector did not reduce the beta-background enough to create a background free spectrum in the typical...
Dr
Chandana Sumithrarachchi
(National Superconducting Cyclotron Laboratory)
11/05/2015, 16:30
Poster Presentation
Thermalization in a buffer gas provides a method to transform fast exotic beams produced by projectile fragmentation at the National Superconducting Cyclotron Laboratory (NSCL) into low-energy beams. The process includes slowing down the fast exotic beams in solid degraders combined with momentum compression and removing the remaining of kinetic energy by collisions with the buffer gas [1]....
Dr
Martin Breitenfeldt
(CERN / University of Greifswald)
11/05/2015, 16:30
Poster Presentation
In this paper we report on our results from the design study of an advanced EBIS-based Charge Breeder (ECB) . The ECB should fulfill the requirements of the HIE-ISOLDE upgrade, and if possible be adapted for ion injection into TSR@ISOLDE , as well as serve as an early prototype of a future EURISOL ECB. Fulfilling the HIE-ISOLDE/TSR@ISOLDE specifications requires simultaneous increase in...
Dr
Colin Morton
(TRIUMF)
11/05/2015, 16:30
Poster Presentation
ISAC is an ISOL-type facility at which RIB are produced by direct reactions of 480–500 MeV protons on a thick target in one of two target stations. Like other ISOL-type facilities, ISAC is limited to the production and delivery of a single RIB at any given time (though an additional stable beam from an offline source may be delivered in parallel). ARIEL, the Advanced Rare-IsotopE Laboratory,...
Dr
Feng ZHU
(Institute of Heavy Ion Physics, Peking University)
11/05/2015, 16:30
Poster Presentation
Beijing ISOL is an isotope separation on line (ISOL) type rare ion beam facility for both basic science and applications. The low beta high current superconducting half wave resonator (HWR) is being developed at Peking University for Beijing ISOL deuteron driver accelerator. Aβ=0.09 162.5 MHz HWR cavity has been designed to accelerate several tens of mA deuteron beam. In this paper, the...
Dr
Adam Stevenson
(Oak Ridge National Laboratory)
11/05/2015, 16:30
Poster Presentation
The Enriched Stable Isotope Production Facility (ESIPF) is being established at Oak Ridge National Laboratory (ORNL) by the US Department of Energy, Office of Nuclear Physics, to restart domestic production of enriched stable isotopes. This facility will help meet the enriched stable isotope needs of the medical, industrial, research, national security, and other scientific communities. The...
Mr
Thomas Day Goodacre
(CERN; The University of Manchester)
11/05/2015, 16:30
Poster Presentation
For the first time, the RILIS laser ion source has been combined with other ion sources at ISOLDE, offering both immediate applications and a possible direction to meet the laser ion source requirements of the future. The ISOLDE RILIS was combined with a surface ion source for the first hot cavity 2+ resonance ion-ionization and also with the VADIS (Versatile Arc Discharge Ion Source), a first...
Dr
Pierre Bricault
(TRIUMF)
11/05/2015, 16:30
Poster Presentation
A large fraction of radioactive beams produced and delivered at TRIUMF's isotope and accelerator facility, ISAC, are using either a surface ion source or a resonant ionization laser ion source, which share a common design. To characterize the operation of the ion sources, simulations were performed to determine the ion beam optics and beam envelope properties of the extracted beam. Furthermore...
Ms
Rachel Sandler
(National Superconducting Cyclotron Laboratory/ Michigan State University)
11/05/2015, 16:30
Poster Presentation
The conserved vector current (CVC) hypothesis asserts that the vector part of the weak interaction is independent of the nuclear interaction. This means that the vector coupling constant Gv is truly a constant and does not require renormalization. This constant, when combined with the purely leptonic muon decay constant GF determines the up-down matrix element Vud of the...
Dr
Oleg Tarasov
(NSCL/MSU)
11/05/2015, 16:30
Poster Presentation
The LISE++ program* is designed to predict intensities and purities for the planning of future experiments with in-flight separators, but is also essential for radioactive beam tuning where its results can be quickly compared to on-line data. This is achieved via the simulation of fragment separators through the use of different sections called ”blocks” (magnetic and electric multipoles,...
Dr
Martin Eibach
(National Superconducting Cyclotron Laboratory)
11/05/2015, 16:30
Poster Presentation
Several scientific applications require high-precision mass data. In particular calculations of the astrophysical r-process, nuclear structure studies, tests of nuclear mass models, and fundamental interactions are examples with very high impact. Mass measurements of radioactive nuclides are particularly challenging as the production rates decrease with increasing distance from stability...
Dr
Enrique Minaya Ramirez
(MPIK, Heidelberg, Germany)
11/05/2015, 16:30
Poster Presentation
The DESIR (decay, excitation and storage of radioactive ions) facility at GANIL will receive a large variety of exotic nuclei at low energy (up to 60 kV) with extremely high intensities. However, the production methods of radioactive beams are non selective limiting the purity of the beams of interest. Moreover the high precision needed for nuclear structure and astrophysics studies using beta...
Dr
Arnaud Leredde
(Argonne National Lab)
11/05/2015, 16:30
Poster Presentation
Radioactive beams coupled with atom and ion trapping techniques are a powerful combination for precision experiments to search for physics beyond the Standard Model (SM). 6He isotopes are particularly interesting to constrain tensor-like contributions to the weak interaction by studying their β decay. So far, such couplings have been experimentally ruled out at the 9% level but are excluded in...
Dr
Martin Breitenfeldt
(CERN / University of Greifswald)
11/05/2015, 16:30
Poster Presentation
ISOLDE/CERN is one of the leading facilities in production of exotic beams. With its upgrade in the HIE-ISOLDE project an increase in primary beam intensity and energy is envisaged. Together with developments in target and ion source technology a significant increase in intensity of the exotic beam expected. Note, in the worst case after the ion source this is a cocktail beam containing...
Mr
Ilkka Pohjalainen
(University of Jyväskylä)
11/05/2015, 16:30
Poster Presentation
Currently the off-line testing and development setup of the IGISOL-4 facility [1] at the Accelerator Laboratory of the University of Jyväskylä, is being upgraded. The off-line station is an independently operated ion guide quadrupole mass spectrometer system that is used not only for off-line measurements, but is needed as a development and testing platform for ion guides and other IGISOL...
Dr
Stefan Schwarz
(NSCL)
11/05/2015, 16:30
Poster Presentation
S. Schwarz,1, G. Bollen,1,2, S. Chouhan,2, J. DeKamp,2, M.A. Green,2, C. Magsig,2, D.J. Morrissey,1,3, J. Ottarson,1, R. Ringle,1, A.C.C. Villari,2 and A. Zeller,2
1 NSCL, MSU, East Lansing, MI, USA
2 Facility for Rare Isotope Beams, East Lansing, MI, USA
3 Department of Chemistry, MSU, East Lansing, MI, USA
At the NSCL rare isotopes are produced by projectile fragmentation at energies...
Dr
Giovanni Bisoffi
(Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali di Legnaro)
11/05/2015, 16:30
Poster Presentation
The Selective Production of Exotic Species (SPES) facility is under construction at INFN-LNL : aim of this project is the production, ionization and post-acceleration of radioactive ions to perform forefront research in nuclear physics. Radioactive species will be produced by fissions induced by a proton beam impinging on an UCx target: the proton beam will be delivered by a normal conducting...
Dr
Aiko Takamine
(RIKEN Nishina Center for Accelerator-Based Science)
11/05/2015, 16:30
Poster Presentation
We have worked on the development of an online trap system including prototype SLOWRI for the highly energetic Be isotope ions provided by the RIKEN projectile fragment separator RIPS. The direct measurements of the hyperfine structure constants of the atomic ground states for 7Be+ and 11Be+ ions were performed with high precisions of 500 ppb and 30 ppb, respectively [1]. In order to study the...
Dr
Alfonse Pham
(Michigan State University National Superconducting Cyclotron Laboratory)
11/05/2015, 16:31
Poster Presentation
The design of a compact all-permanent magnet electron cyclotron resonance (ECR) ion source injector for the superconducting heavy ion linac rare isotope ReAccelerator Facility (ReA) at the Michigan State University (MSU) National Superconducting Cyclotron Laboratory (NSCL) is currently being carried out. The ECR ion source injector is based on a Grenoble design using microwave heating with a...
Mr
Moritz Pascal Reiter
(II.Physics Institute JLU Giessen)
11/05/2015, 16:31
Poster Presentation
The next-generation cryogenic stopping cell (CSC) for the Low-Energy Branch (LEB) of the Super-FRS is based on our experience of advanced stopping cell techniques. The stopping cell is operated at cryogenic temperatures to ensure a high purity of the stopping gas and high density operation enabled using an RF carpet with a small electrode structure size. These techniques have been implemented...
Dr
Sung Jong Park
(Institute for Basic Science)
11/05/2015, 16:31
Poster Presentation
Collinear optical pumping technique is a very useful tool to produce spin-polarized radioactive isotope beams. Unlike the case of stable alkali atomic beams, the experimental results of lithium-8 have shown the limited nuclear spin polarization [1,2] although the rate equation formalism predicts almost 100% polarization [2,3]. We propose the laser frequency ramping method by means of...
Mr
Brahim Mustapha
(Argonne National Laboratory)
11/05/2015, 16:31
Poster Presentation
The Argonne In-flight Radioactive Ion Separator (AIRIS) is being proposed to enhance the radioactive beam capabilities of the ATLAS facility at ANL. In order to serve most of the experimental areas while maintaining stable beam operations, the separator consists of a magnetic chicane with a net zero-degree deflection. The chicane is made of four dipoles and four multipoles. In this design, all...
Mr
Reinhard Heinke
(Institute of Physics, Johannes Gutenberg-University Mainz)
11/05/2015, 16:31
Poster Presentation
The investigation of short-lived and exotic nuclides far off stability at on-line mass separators such as ISOLDE at CERN is a strong means to solve relevant problems in nuclear and astrophysics. To approach the regions far-off stability of the nuclear chart ion beams of highest purity are required. Today, the Resonance Ionization Laser Ion Source RILIS has become a worldwide established...
Dr
Jong-Won Kim
(Institute for Basic Science)
11/05/2015, 16:31
Poster Presentation
An in-flight fragment separator has been designed for the rare isotope science project (RISP) underway in Korea. The primary beam power is 400 kW at maximum, which is reflected on the radiation shielding and thereby on the separator design. The beam energy of 238U is 200 MeV/u and will be increased to 400 MeV/u. Maximum magnetic rigidity of the separator is set as 9.5 Tm. Development of the...
Brad Barquest
(TRIUMF)
11/05/2015, 16:31
Poster Presentation
A new RFQ-based ion beam cooler and buncher is under development as part of the CANREB project at TRIUMF. The CANREB project requires an RFQ buncher that will efficiently accept continuous beams of rare isotopes from the ARIEL or ISAC target, by way of a high resolution mass spectrometer (HRS), with energies up to 60 keV and deliver bunched beams to an EBIS for charge breeding. The CANREB RFQ...
Dr
Kerim Gulyuz
(NSCL)
11/05/2015, 16:31
Poster Presentation
Experimental searches for the neutrinoless double-β (0νββ) decay [1] have become of great interest after the confirmation of nonzero neutrino mass by neutrino oscillation experiments. This process is forbidden in the Standard Model and proposed to only occur if the neutrino is its own antiparticle. An observation of 0νββ-decay would enable one to determine the absolute neutrino mass scale. The...
Mr
Víctor Guadilla
(Instituto de Física Corpuscular IFIC)
11/05/2015, 16:31
Poster Presentation
A new Total Absorption Gamma-Ray Spectrometer for beta-decay studies (DTAS) has been developed within the DESPEC experiment of the NUSTAR collaboration [1]. The instrument has been designed [2] to determine accurately the beta-decay intensity distribution for exotic nuclei produced in high-energy reactions, which will be separated and identified by means of the Super Fragment Separator at the...
Mr
Jari Partanen
(University of Jyväskylä)
11/05/2015, 16:31
Poster Presentation
A new vacuum-mode recoil spectrometer MARA (Mass Analyzing Recoil Apparatus) [1] has been built in JYFL. The spectrometer has a designed first-order m/q resolving power of 250. What sets this FMA-like [2] device apart from its siblings is the single-deflector ion-optical configuration QQQEM. Collimators and slit systems are used to reduce the background components caused by scattered beam and...
Dr
Tsviki Hirsh
(University of Manitoba)
11/05/2015, 16:31
Poster Presentation
Tsviki Y. Hirsh1,3,6, Nancy Paul2,3, Mary Burkey3,4, Shane Caldwell3,4, Jason A. Clark3, Anthony F. Levand3, Scott T. Marley2, Graeme E. Morgan1,3, Andrew Nystrom2,3, Rodney Orford5,3, Adrian Pérez Galván3, John Rohrer3, Guy Savard3,4, Kevin Siegl2,3, Kumar S. Sharma1
1University of Manitoba, 2University of Notre Dame, 3Argonne National Laboratory, 4University of Chicago, 5McGill University,...
Dr
Ryan Ringle
(NSCL)
11/05/2015, 16:31
Poster Presentation
The establishment of next generation rare isotope beam facilities, such as the Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU), requires new and improved instrumentation to deal with the anticipated high-radiation environment associated with the interaction of high-power beams with matter. One important piece of instrumentation is a precise, radiation-resistant,...
Dr
Yuri Kudryavtsev
(KU Leuven)
11/05/2015, 16:31
Poster Presentation
The in-gas laser ionization and spectroscopy (IGLIS) technique developed at KU Leuven is used at the Leuven isotope separator on line (LISOL) facility to produce short-lived radioactive beams in different regions of the chart of nuclides using light and heavy-ion induced fusion or fission reactions. In this technique, the nuclear reaction products recoiling out of a thin target are thermalized...
M.P. Kuchera
(National Superconducting Cyclotron Laboratory)
11/05/2015, 16:31
Poster Presentation
LISE++ is the standard software used at in-flight separator facilities for predicting beam intensity and purity. LISE++ simulates nuclear physics experiments where fragments are produced then selected with a spectrometer. The use of LISE++ in most facilities is to predict and identify the composition of Radioactive Nuclear Beams [1]. Intensity and purity of a desired beam can be predicted,...
Mr
Joao Pedro Ramos
(CERN and EPFL, Switzerland)
11/05/2015, 16:31
Poster Presentation
After isotope production, in the bulk of the target material, the beam intensities in ISOL facilities are mainly defined by: the release from the target material, ionization, mass separation and transport efficiencies. Although production can be up to 1E10 /s, by far the most limiting step is the release of the isotopes from the target itself, where release efficiencies can go down to 1E-6 or...
Ms
Momo Mukai
(University of Tsukuba)
11/05/2015, 16:31
Poster Presentation
In KISS (KEK Isotope Separation System) [1], laser resonance ionization [2] is employed for the element-selective ionization of multi-nucleon transfer reaction products around N = 126. We searched for efficient laser resonance ionization schemes for tantalum (Z = 73) and tungsten (Z = 74), which will be studied in KISS.
In laser resonance ionization technique, an atom is element-selectively...
Dr
Jerry Nolen
(Argonne National Laboratory)
11/05/2015, 16:31
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 followed by a mass separator. The mass separation stage uses a combination of one electric dipole for energy dispersion and one magnetic dipole for momentum...
Dr
Alain Lapierre
(NSCL)
11/05/2015, 16:31
Poster Presentation
The rare isotope beam re-accelerator facility ReA3 of the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU) employs an electron beam ion trap (EBIT) as charge breeder and injector. After breeding, the highly charged rare isotope beams are injected into an achromatic Q/A separator for ion species selection and then re-accelerated to energies of several...
Dr
Yuan Gao
(Institue of Heavy Ion Physics, School of Physics, Peking University)
11/05/2015, 16:31
Poster Presentation
Beijing ISOL is a double driver RIB facility with CARR Research reactor and deuteron LINAC, which is proposed by Peking University (PKU) and China Institute of Atomic Energy (CIAE). In this facility, the converter target is designed to produce neutron and remove the 40 MeV deuteron beam thermal power (>400 kW, >80 kW/cm2). The free surface fluid of liquid lithium has been considered as the...
P.D. O'Malley
(Notre Dame)
11/05/2015, 16:31
Poster Presentation
New radioactive beam facilities are enabling the study of many astrophysical reactions on exotic beams for the first time. To take full advantage of these new capabilities, however, we need to also advance target technology. Particularly important to the study of astrophysical reaction rates is the creation of localized and dense targets of hydrogen and helium. The Jet Experiments in...
Dr
Scott Williams
(National Superconducting Cyclotron Laboratory)
11/05/2015, 16:31
Poster Presentation
The National Superconducting Cyclotron Laboratory at Michigan State University produces rare isotope beams using the fast fragmentation technique. A recent expansion of the facility enables low energy (< 60 keV) and post-accelerated (< 3 MeV/A) beams to be delivered to experiments. The first stage is thermalization in a helium-filled linear gas cell. Depending on the chemistry of the beam...
Dr
Matthew Redshaw
(Central Michigan University)
11/05/2015, 16:31
Poster Presentation
The results of solar, atmospheric, and reactor neutrino oscillation experiments have provided strong evidence for a non-zero neutrino mass. However, these measurements determine only the difference between the squared-masses of the neutrino mass eigenstates. The absolute neutrino mass scale is still unknown. Beta-decay experiments utilizing 3H and 187Re have obtained the most stringent upper...
Ms
Alexandra Spiridon
(Cyclotron Institute-Texas A&M University)
11/05/2015, 16:31
Poster Presentation
MicroMegas is a relatively new detector technology that operates as a two stage parallel plate avalanche chamber. It consists of a small amplification gap (50-300 um) and a much larger drift gap (on the order of cm) separated by a thin electroformed micromesh. It has been shown to provide gains of up to 105.[1]
We have previously used this technology at our Institute in the AstroBox [2], to...
Dr
Patrick O'Malley
(University of Notre Dame)
11/05/2015, 16:31
Poster Presentation
TwinSol, a pair of coupled, superconducting solenoids, was one of the first devices capable of producing beams of radioactive nuclei. A primary beam from the UND accelerator is used to bombard a primary target producing a secondary beam in flight. TwinSol is used to gather, separate, and focus the recoils. Since it was commissioned at the University of Notre Dame (UND) in 1997, at least 58...