Search results for "eAMS"
showing 10 items of 445 documents
Test of Special Relativity in a Heavy Ion Storage Ring
2008
A method for measuring total cross sections of (γ, π−) reactions at threshold
1981
Abstract A new method for detecting low energy negative pions has been investigated. The negative pions are identified via monoenergetic neutrons produced in the reaction π − + D → 2 n and detected by means of a time of flight spectrometer. The feasibility for measuring D ( γ , π − ) cross sections near threshold is demonstrated; an extension to heavier nuclei seems to be possible. Futher the method is well suited for applications together with tagged photon beams.
Radioactive ion beams in the region of 100Sn and 78Ni at the NSCL
2004
The regions around the doubly magic nuclei 100 Sn and 78 Ni are of great interest from a nuclear structure standpoint. These nuclei also play a key role in the astrophysical rp- and r-processes, respectively. Recently, nuclei in these regions were studied at the Coupled Cyclotron Facility at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University.
A Non-Normal Incidence Pumped Ni-Like Zr XRL for Spectroscopy of Li-Like Heavy Ions at GSI/FAIR
2008
One of the unique features of the PHELIX laser installation is the combination of the ultra-high intensity laser with the heavy-ion accelerator facility at GSI and its planned extension FAIR. Due to this combination, PHELIX will allow novel investigations in the fields of plasma physics, atomic physics, nuclear physics, and accelerator studies. An important issue within the scientific program is the generation of high quality x-ray laser beams for x-ray laser spectroscopy of highly-charged ions. The long range perspective is the study of nuclear properties of radioactive isotopes within the FAIR [1] project. A novel single mirror focusing scheme for the TCE XRL has been successfully impleme…
Nuclear structure physics at GSI-challenges and perspectives
2001
Some characteristic examples from the ongoing GSI nuclear structure research programme are presented such as recent experimental results from nuclear reactions with exotic beams to explore the structure of halo nuclei, direct mass measurements in the storage ring, and the structure of heavy-elements. A brief outline of a next generation exotic beam facility will be given.
The Pion Single-Event Effect Resonance and its Impact in an Accelerator Environment
2020
International audience; The pion resonance in the nuclear reaction cross section is seen to have a direct impact on the single-event effect (SEE) cross section of modern electronic devices. This was experimentally observed for single-event upsets and single-event latchup. Rectangular parallelepiped (RPP) models built to fit proton data confirm the existence of the pion SEE cross-section resonance. The impact on current radiation hardness assurance (RHA) soft error rate (SER) predictions is, however, minimal for the accelerator environment since this is dominated by high neutron fluxes. The resonance is not seen to have a major impact on the high-energy hadron equivalence approximation estab…
The BaBar detector: Upgrades, operation and performance
2013
The BABAR detector operated successfully at the PEP-Il asymmetric e(+) e(-) collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the detector systems, as well as the trigger, online and offline computing, and aspects of event reconstruction since the beginning of data taking.
Coping with Burnout Symptoms through Task Significance in Professionals Working with Individuals with Intellectual Disability
2021
ABSTRACT This study examined an intervention that links task significance (one’s job has a positive impact on other people) to burnout symptoms of professionals working in organizations for individuals with intellectual disability. Professionals assigned to the experimental condition participated in teams designed to enhance the positive impact of their work on others (task significance). To do so, teams focused on a task to improve the quality of life of individuals with intellectual disability. Professionals assigned to the control condition did not participate in these teams, and they continued with their usual work. All the participating professionals answered a questionnaire abou…
Investigating the impacts of team type and design on virtual team processes
2017
While much is known about virtual team processes and outcomes, the literature relies on a variety of team configurations and types (including student versus organizational samples, short-term versus long-term teams, functional versus project-based teams, and teams with various task types) yet has not systematically examined how these differences impact team processes. This is important because much of the virtual teams research has been based on student samples, which are easier to access and control, with the implicit assumption that the findings from student samples will generalize to organizational virtual teams. This manuscript reviews the last 15 years of research on virtual teams and …
Medidas psicométricas de la cohesión en equipos de trabajo universitarios (Psychometric measures of cohesion in university work teams)
2019
La cohesión ha sido un concepto ampliamente estudiado en equipos deportivos y organizacionales, pero no ha sido estudiado en equipos de trabajo universitarios. Además se han usado medidas de la cohesión, como el Sociograma, que no han demostrado su validez de constructo. Este trabajo presenta dos estudios. En el primero, el objetivo es comprobar las evidencias de validez confirmatoria y fiabilidad del GEQ (Group Environmental Questionnaire) en equipos de trabajo universitarios y en él han participado 273 alumnos. En el segundo estudio, se quieren comparar las medidas de la cohesión a través de dos instrumentos: GEQ y Sociograma utilizando dos mediciones antes y después del trabajo grupal. E…