scholarly journals Laser ion implantation of Ge in SiO2 using a post-ion acceleration system

2016 ◽  
Vol 35 (1) ◽  
pp. 72-80 ◽  
Author(s):  
M. Cutroneo ◽  
A. Mackova ◽  
L. Torrisi ◽  
V. Lavrentiev
Keyword(s):  
Ion Implantation ◽  
Nuclear Physics ◽  
Physics Institute ◽  
Laser Repetition Rate ◽  
Depth Profiles ◽  
The University ◽  
Ion Species ◽  
Concentration Depth Profiles ◽  
Nuclear Physics Institute

AbstractThis work reports a comparative study of laser ion implantation mainly performed at the Nuclear Physics Institute in Rez (Czech Republic), National Institute of Nuclear Physics (Italy), and the Plasma Physics Laboratory at the University of Messina (Italy) using different approaches. Thick metallic targets were irradiated in vacuum by a focused laser beam to generate plasma-producing multi-energy and multi-species ions. A post-acceleration system was employed in order to increase the energy of the produced ions and to generate ion beams suitable to be implanted in different substrates. The ion dose was controlled by the laser repetition rate and the time of irradiation. Rutherford backscattering analysis was carried out to evaluate the integral amount of implanted ion species, the concentration–depth profiles, the ion penetration depth, and the uniformity of depth profiles for ions laser implanted into monocrystalline substrates. The laser implantation under normal conditions and in post-acceleration configuration will be discussed on the basis of the characterization of the implanted substrates.

scholarly journals Characterization of Highly Irradiated ALPIDE Silicon Sensors

Universe ◽  
2019 ◽  
Vol 5 (4) ◽  
pp. 91
Author(s):  
Valentina Raskina ◽  
Filip Křížek
Keyword(s):  
Nuclear Physics ◽  
Detection Efficiency ◽  
Tracking System ◽  
Physics Institute ◽  
Total Ionization ◽  
Silicon Sensors ◽  
Active Pixel ◽  
Academy Of Sciences

The ALICE (A Large Ion Collider Experiment) experiment at CERN will upgrade its Inner Tracking System (ITS) detector. The new ITS will consist of seven coaxial cylindrical layers of ALPIDE silicon sensors which are based on Monolithic Active Pixel Sensor (MAPS) technology. We have studied the radiation hardness of ALPIDE sensors using a 30 MeV proton beam provided by the cyclotron U-120M of the Nuclear Physics Institute of the Czech Academy of Sciences in Řež. In this paper, these long-term measurements will be described. After being irradiated up to the total ionization dose 2.7 Mrad and non-ionizing energy loss 2.7 × 10 13 1 MeV n eq · cm - 2 , ALPIDE sensors fulfill ITS upgrade project technical design requirements in terms of detection efficiency and fake-hit rate.

Plasma ion implantation of nitrogen into silicon: Characterization of the depth profiles of implanted ions

1994 ◽  
Vol 76 (10) ◽  
pp. 5666-5675 ◽  
Author(s):  
John J. Vajo ◽  
John D. Williams ◽  
Ronghua Wei ◽  
Robert G. Wilson ◽  
Jesse N. Matossian
Keyword(s):  
Ion Implantation ◽  
Depth Profiles

scholarly journals Performance and application of heavy ion nuclear microbeam facility at the Nuclear Physics Institute in Řež, Czech Republic

2019 ◽  
Vol 90 (1) ◽  
pp. 013701 ◽  
Author(s):  
Oleksandr Romanenko ◽  
Vladimir Havranek ◽  
Anna Mackova ◽  
Marie Davidkova ◽  
Mariapompea Cutroneo ◽  
...  
Keyword(s):  
Czech Republic ◽  
Nuclear Physics ◽  
Heavy Ion ◽  
Physics Institute ◽  
Nuclear Physics Institute

scholarly journals High-power TR-24 cyclotron-based p-n convertor cooled by submerged orifice jet

2020 ◽  
Vol 231 ◽  
pp. 03005
Author(s):  
Bém Pavel ◽  
Běhal Radomír ◽  
Gӧtz Miloslav ◽  
Plíhal Petr ◽  
Poklop Dušan ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Cooling System ◽  
Forward Direction ◽  
Beam Current ◽  
Neutron Field ◽  
Physics Institute ◽  
Jet Cooling ◽  
Submerged Orifice ◽  
Target Output ◽  
Nuclear Physics Institute

The TR-24 cyclotron (Advanced Cyclotron Systems Inc., Canada) of the Nuclear Physics Institute in Řež provides protons with variable energies from 18 MeV up to 24 MeV and beam current of 0.3 mA. For such parameters, the p +Be source reaction on thick Be target can produce a white-spectrum neutron field (En ≤ 22 MeV) with the intensity of 5×10 12 n/s/sr in forward direction. Present paper outlines the development of Be-target cooling system, devoted to remove the heat load of 7 kW (density up to 4 kW/cm2) from the target. Due to novel “orifice-form“ of jet cooling (resulting in the shortest source-to- sample distance of 20 mm) with extremely high cooling efficiency, the TR-24 p-n convertor can achieve neutron-flux up to 2×1012n/cm2/s nearby the target output.

scholarly journals ION BEAM MATERIALS ANALYSIS AND MODIFICATIONS AT keV TO MeV ENERGIES AT THE UNIVERSITY OF NORTH TEXAS

2014 ◽  
Vol 27 ◽  
pp. 1460147 ◽  
Author(s):  
BIBHUDUTTA ROUT ◽  
MANGAL S. DHOUBHADEL ◽  
PRAKASH R. POUDEL ◽  
VENKATA C. KUMMARI ◽  
WICKRAMAARACHCHIGE J. LAKSHANTHA ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Nuclear Physics ◽  
Ion Beam ◽  
High Energy ◽  
Particle Accelerators ◽  
Educational Training ◽  
North Texas ◽  
University Of North Texas ◽  
Ion Beam Lithography ◽  
The University

The University of North Texas (UNT) Ion Beam Modification and Analysis Laboratory (IBMAL) has four particle accelerators including a National Electrostatics Corporation (NEC) 9SDH-2 3 MV tandem Pelletron, a NEC 9SH 3 MV single-ended Pelletron, and a 200 kV Cockcroft-Walton. A fourth HVEC AK 2.5 MV Van de Graaff accelerator is presently being refurbished as an educational training facility. These accelerators can produce and accelerate almost any ion in the periodic table at energies from a few keV to tens of MeV. They are used to modify materials by ion implantation and to analyze materials by numerous atomic and nuclear physics techniques. The NEC 9SH accelerator was recently installed in the IBMAL and subsequently upgraded with the addition of a capacitive-liner and terminal potential stabilization system to reduce ion energy spread and therefore improve spatial resolution of the probing ion beam to hundreds of nanometers. Research involves materials modification and synthesis by ion implantation for photonic, electronic, and magnetic applications, micro-fabrication by high energy (MeV) ion beam lithography, microanalysis of biomedical and semiconductor materials, development of highenergy ion nanoprobe focusing systems, and educational and outreach activities. An overview of the IBMAL facilities and some of the current research projects are discussed.

scholarly journals Lyon Natural Radiocarbon Measurements I

Radiocarbon ◽  
1969 ◽  
Vol 11 (01) ◽  
pp. 112-117 ◽  
Author(s):  
J. Evin ◽  
R. Longin ◽  
Ch. Pachiaudi
Keyword(s):  
Nuclear Physics ◽  
Radiocarbon Dating ◽  
Late Quaternary ◽  
Quaternary Geology ◽  
Physics Institute ◽  
Nuclear Physics Institute

The Radiocarbon Dating Laboratory was founded in 1965 by the Department of Geology, University of Lyon, to study the Late Quaternary geology of the Rhone-Alps Region, and to contribute to hydrogeologic and archaeologic studies. It has been installed in the basement of the Nuclear Physics Institute. Preparation began in 1966 and first dates obtained in June 1967.

scholarly journals 26Mg target for nuclear astrophysics measurements

2018 ◽  
Vol 184 ◽  
pp. 02014
Author(s):  
I. Siváček ◽  
J. Mrázek ◽  
V. Kroha ◽  
V. Burjan ◽  
V. Glagolev ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Nuclear Reactions ◽  
Nuclear Astrophysics ◽  
Asymptotic Normalization ◽  
Physics Institute ◽  
Astrophysical Interest ◽  
Target Composition ◽  
Czech Academy ◽  
Academy Of Sciences ◽  
Nuclear Physics Institute

Two nuclear reactions of astrophysical interest, 26Mg(3He,d)27Al and 26Mg(d,p)27Mg, were measured for extraction of the Asymptotic Normalization Coefficients. Investigation of the target composition is presented, as well as the effects that showed up during analysis of the in-beam data obtained on CANAM accelerators in the Nuclear Physics Institute of the Czech Academy of Sciences (NPI CAS).

scholarly journals 1000 MeV Proton beam therapy facility at Petersburg Nuclear Physics Institute Synchrocyclotron

2006 ◽  
Vol 41 ◽  
pp. 424-432 ◽  
Author(s):  
N K Abrosimov ◽  
Yu A Gavrikov ◽  
E M Ivanov ◽  
D L Karlin ◽  
A V Khanzadeev ◽  
...  
Keyword(s):  
Proton Beam ◽  
Nuclear Physics ◽  
Proton Beam Therapy ◽  
Physics Institute ◽  
Nuclear Physics Institute
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