Recent developments and research projects at the low-energy RI beam facility CRIB

2013 ◽  
Vol 317 ◽  
pp. 664-667 ◽  
Author(s):  
H. Yamaguchi ◽  
D. Kahl ◽  
T. Nakao ◽  
Y. Wakabayashi ◽  
S. Kubono ◽  
...  
Keyword(s):  
Low Energy ◽  
Research Projects ◽  
Recent Developments ◽  
Ri Beam

scholarly journals Recent Developments in Very Low Energy Neutron Technology.

1993 ◽  
Vol 35 (6) ◽  
pp. 493-500 ◽  
Author(s):  
Masahiko UTSURO ◽  
Yuji KAWABATA ◽  
Akira YAMAGUCHI ◽  
Hajime YOSHIKI
Keyword(s):  
Low Energy ◽  
Energy Neutron ◽  
Recent Developments

scholarly journals Nuclear astrophysics projects at the low-energy RI beam separator CRIB

2017 ◽  
Vol 165 ◽  
pp. 01056
Author(s):  
H. Yamaguchi ◽  
D. Kahl ◽  
S. Hayakawa ◽  
L. Yang ◽  
H. Shimizu ◽  
...  
Keyword(s):  
Nuclear Astrophysics ◽  
Low Energy ◽  
Ri Beam

Collaborative Research Funding

2014 ◽  
Vol 36 (4) ◽  
Author(s):  
Markus Behnke ◽  
Laura McConnell ◽  
Chris Ober
Keyword(s):  
International Collaboration ◽  
Research Funding ◽  
International Committee ◽  
Research Projects ◽  
Scientific Success ◽  
Funding Sources ◽  
Chemistry Research ◽  
National Organizations ◽  
Recent Developments ◽  
History Of

Within a changing research world, international collaboration has become even more important in achieving scientific success. Given the increased need and desire for multinational research, the actors are forced to identify appropriate funding sources. Whereas, science knows no international boundaries, support for scientific research, including in chemical sciences, is mostly provided by the national funding organizations. This is particularly true for the chemical sciences, where most research projects are relatively small in size and with respect to the number of involved PIs. Traditionally, national organizations are reluctant to provide funds to non-domestic researchers, and in practice, funding truly international research projects can be a real challenge for a variety of technical and bureaucratic reasons. In an effort to change this, an international Committee on Chemistry Research Funding (CCRF)—backed by several leading funding organizations—was established by IUPAC in December 2007 to promote increased international collaboration and networking in the global chemistry community. The following report gives a short overview on the history of IUPAC’s involvement in service for chemistry research funding and on the most recent developments.

Low-energy Ion Beam Biotechnology at Chiang Mai University

2009 ◽  
Vol 1181 ◽  
Author(s):  
Liangdeng Yu ◽  
S. Anuntalabhochai
Keyword(s):  
Gene Transfer ◽  
Biological Effects ◽  
Ion Beam ◽  
Point Of View ◽  
Low Energy ◽  
Theoretical Point ◽  
Chiang Mai ◽  
Naked Dna ◽  
Recent Developments ◽  
Cell Envelopes

AbstractMeV-ion beam has long been applied to biology research and applications for many decades as highly energetic ions are undoubtedly able to interact directly with biology molecules to cause changes in biology. However, low-energy ion beam at tens of keV and even lower has also been found to have significant biological effects on living materials. The finding has led to applications of ion-beam induced mutation and gene transfer. From the theoretical point of view, the low-energy ion beam effects on biology are difficult to understand since the ion range is so short that the ions can hardly directly interact with the key biological molecules for the changes. This talk introduces interesting aspects of low-energy ion beam biology, including basis of ion beam biotechnology and recent developments achieved in Chiang Mai University in relevant applications such as mutation and gene transfer and investigations on mechanisms involved in the low-energy ion interaction with biological matter such as eV-keV ion beam bombardments of naked DNA and the cell envelopes.

CRIB: The Low Energy In-Flight RI Beam Separator

2020 ◽  
Vol 30 (2) ◽  
pp. 21-27
Author(s):  
Hidetoshi Yamaguchi ◽  
Daid Kahl ◽  
Shigeru Kubono
Keyword(s):  
Low Energy ◽  
Ri Beam

scholarly journals Direct measurements and detection techniques with low-energy RIBs

2018 ◽  
Vol 184 ◽  
pp. 01017
Author(s):  
H. Yamaguchi ◽  
S. Hayakawa ◽  
L. Yang ◽  
H. Shimizu ◽  
D. Kahl
Keyword(s):  
Resonant Scattering ◽  
Reaction Rates ◽  
Thick Target ◽  
Low Energy ◽  
Radioactive Isotopes ◽  
Detection Techniques ◽  
Technical Developments ◽  
Production Measurement ◽  
Ri Beam ◽  
The University

Astrophysical reactions involving radioactive isotopes (RI) are of importance for the stellar energy generation and nucleosynthesis especially in high-temperature astrophysical sites, such as X-ray bursts, core-collapse supernovae, and supermassive metalpoor stars. In spite of the essential diffculties in the experimental evaluation of those reaction rates, there are several successful approaches to study them, owing to the recent technical developments in the beam production, measurement method, and detectors. Among them, the measurements of α resonant scattering and (α, p) reactions using the thick-target method in inverse kinematics are discussed. The experiments at the low-energy RI beam separator CRIB, operated by Center for Nuclear Study (CNS), the University of Tokyo, are introduced as examples for such studies.

Microanalysis with Ultrasoft X-Radiations*

1961 ◽  
Vol 5 ◽  
pp. 285-305 ◽  
Author(s):  
Burton L. Henke
Keyword(s):  
Preliminary Report ◽  
Auger Electron ◽  
Low Energy ◽  
Diffraction Reflection ◽  
X Rays ◽  
Electron Spectrometer ◽  
Recent Developments ◽  
New Type ◽  
Low Energy Electron ◽  
A Current

AbstractThe diffraction, reflection, absorption, fluorescence, and the electronic emission that results from the interaction with ultrasoft X-rays (λ > 10 A) are presented as practical bases for microanalysis. Recent developments on sources and detectors for the ultrasoft X-radiations are described. A preliminary report on a current investigation on low-energy photo-Auger electron analysis and on a new type of low-energy electron spectrometer is also presented.

scholarly journals Conceptual study on parasitic low-energy RI beam production with in-flight separator BigRIPS and the first stopping examination for high-energy RI beams in the parasitic gas cell

2019 ◽  
Vol 2019 (11) ◽  
Author(s):  
T Sonoda ◽  
I Katayama ◽  
M Wada ◽  
H Iimura ◽  
V Sonnenschein ◽  
...  
Keyword(s):  
High Energy ◽  
Ion Source ◽  
Low Energy ◽  
Laser Ion Source ◽  
Gas Cell ◽  
Beam Production ◽  
Expected Benefits ◽  
Conceptual Study ◽  
Ri Beam

Abstract An in-flight separator performs the important role of separating a single specific radioactive isotope (RI) beam from the thousands of RI beams produced by in-flight fission as well as projectile fragmentation. However, when looking at ``separation'' from a different viewpoint, more than 99% of simultaneously produced RI beams are just eliminated in the focal plane slits or elsewhere in the separator. In order to enhance the effective usability of the RIKEN in-flight separator BigRIPS, we have been developing an innovative method: parasitic laser ion source (PALIS), which implements parasitic low-energy RI beam production by saving eliminated RI beams during BigRIPS experiments. In this paper, we present the expected benefits and feasibility for the PALIS concept and the results of the first stopping examination for high-energy RI beams in the gas cell.

Commissioning and Operation of the First Brazilian Synchrotron Light Source

1998 ◽  
Vol 5 (3) ◽  
pp. 1157-1161 ◽  
Author(s):  
A. R. D. Rodrigues ◽  
A. F. Craievich ◽  
C. E. T. Gonçalves da Silva
Keyword(s):  
Light Source ◽  
Storage Ring ◽  
Beam Energy ◽  
Low Energy ◽  
Electron Beam Energy ◽  
Electron Lifetime ◽  
Research Projects ◽  
Energy Current ◽  
Electron Accelerators ◽  
Synchrotron Light

The synchrotron light source designed and constructed at the LNLS is composed of a 1.37 GeV electron storage ring and a 120 MeV linac for low-energy injection. The storage ring has been commissioned and has already reached the designed electron-beam energy, current and emittance. The electron lifetime is now 6 h at 60 mA, and is steadily increasing. Seven beamlines (TGM, SGM, SXS, XAFS, XRD, SAXS, PCr) have been constructed in parallel with the electron accelerators and are at present in operation. Beam time was allocated to 129 approved research projects for the second semester of 1997. A number of them are currently under way.

ANALYSIS OF THERMAL VIBRATIONS AND INCOMMENSURATE LAYERS BY LOW ENERGY ELECTRON DIFFRACTION

1997 ◽  
Vol 04 (03) ◽  
pp. 469-478 ◽  
Author(s):  
W. MORITZ ◽  
J. LANDSKRON ◽  
T. GRÜNBERG
Keyword(s):  
Multiple Scattering ◽  
Scattering Theory ◽  
Low Energy ◽  
Multiple Diffraction ◽  
Low Energy Electron Diffraction ◽  
Anharmonic Vibrations ◽  
Recent Developments ◽  
Low Energy Electron ◽  
Thermal Vibrations

The multiple scattering theory of LEED is briefly reviewed, and recent developments concerning the analysis of thermal vibrations with LEED and the analysis of lattice modulations in incommensurate layers are discussed. Usually only isotropic thermal vibrations have been considered in LEED structure analyses. This restriction can be overcome by an extension of the theory to anisotropic and anharmonic vibrations, allowing not only a higher precision in the determination of structure parameters but also the study of dynamical processes with LEED. In the case of incommensurate layers the satellite reflections arise from multiple diffraction as well as from modulations in the adsorbate or substrate lattice. It is shown that an approximation can be introduced in the multiple scattering formalism to calculate the satellite intensities. The method can be applied to incommensurate layers as well as to higher order commensurate layers.

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