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  • 1
    Electronic Resource
    Electronic Resource
    Channeling and RHEED analyses of Pb-implantation in silicon (1978)
    Springer
    Applied physics 15 (1978), S. 233-237 
    Details
    ISSN: 1432-0630
    Keywords: 61.80P ; 61.50C ; 61.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Si 〈111〉 single crystals implanted with 40 keV Pb+ have been analyzed by channeling and reflection high-energy electron diffraction (RHEED) techniques. A suitable use of both techniques gives information on the thickness of the damaged regions. In particular, 60 KV electron impinging at ∼0.3° and 1° with respect to the crystal surface give information on 40 Å and 100 Å thick Si layers, respectively. The low dose implanted region grow epitaxially onto the underlaying Si single crystal substrate. High dose implantation will not allow recrystallization for annealing temperature up to 900°.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00928215
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  • 2
    Electronic Resource
    Electronic Resource
    RERAME: A facility for investigating heavy ion reactions with activation techniques
    Amsterdam : Elsevier
    Applied Radiation and Isotopes 45 (1994), S. 325-334 
    Details
    ISSN: 0969-8043
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0969-8043(94)90046-9
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  • 3
    Electronic Resource
    Electronic Resource
    Preliminary tests for the electron cyclotron resonance ion source coupled to a laser ion source for charge state enhancement experiment : The 8th international conference on ion sources (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 1119-1121 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: At the Laboratori Nazionali del Sud we have designed a hybrid ion source, consisting of a laser ion source as first stage, which gives intense currents of electrons and of multiply charged ions, followed by an electron cyclotron resonance (ECR) ion source as a second stage, which should act as a charge state multiplier. The ECR ion source coupled to a laser ion source for charge state enhancement (ECLISSE) experiment has been funded by INFN and preliminary experiments have been carried out at IPPLM in Warsaw, in order to confirm the beneficial effects of the axial magnetic field of the ECR ion source on the extraction of the ions from the LIS, as foreseen by calculations. The description of the ECLISSE experiment and of the results of the preliminary tests will be reported. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150402
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  • 4
    Electronic Resource
    Electronic Resource
    18 GHz upgrading of the superconducting electron cyclotron resonance ion source SERSE (1999)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 70 (1999), S. 3577-3582 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The superconducting electron cyclotron resonance ion source SERSE of INFN-Laboratori Nazionali del Sud has been recently upgraded with an 18 GHz generator which takes the place of the 14.5 GHz generator, used up to now. In order to further extend the validation of high B mode to higher frequency, some comparative tests have also been carried out, aimed at understanding the role of the magnetic field and frequency on the ion yield at higher levels than were ever done before. The results at the frequencies of 14.5 and 18 GHz are compared and the trend already observed elsewhere is here confirmed. Preliminary observations of the "two frequency heating" have contributed to increase further the currents of the highest charge states. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1149962
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  • 5
    Electronic Resource
    Electronic Resource
    TRIPS: The high intensity proton source for the TRASCO project : The 8th international conference on ion sources (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 771-773 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The TRASCO project (trasmutazione scorie) is a R&D program whose goal is the design of an accelerator driving system for nuclear waste transmutation. The high current continuous wave proton linear accelerator will drive a subcritical system to transmutate nuclear wastes, while producing energy. The proton source TRIPS is a high intensity microwave source, which should be highly reliable and that should provide a minimum proton current of 50 mA with a r−r′ root mean square normalized emittance lower than 0.2 π mm mrad. A program of cooperation has been entered into with CEA-Saclay, where the IPHI project is in progress and the proton source SILHI has been designed and built using goals close to those of TRIPS. The construction of TRIPS is underway and the first beam is scheduled for the first half of 2000. The main features of this source and the results of the optics calculations are presented. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150289
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  • 6
    Electronic Resource
    Electronic Resource
    The contribution of the INFN-LNS to the development of electron cyclotron resonance ion sources (invited) : The 8th international conference on ion sources (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 631-636 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The study of the axial injector for the superconducting cyclotron of the Laboratori Nazionali del Sud (LNS) began in 1989, with the aim of replacing the radial injection from a 15 MV Tandem with the injection by a modern electron cyclotron resonance ion source (ECRIS) which could be able to produce beams of highly charged ions to the same extent. The design of a superconducting ECRIS, named SERSE, was established in the two following years and funded since 1993, 2 yr before the extraction of the first beam from the cyclotron; the construction took more than 4 yr and in August 1997 SERSE, was ready in the test bench of CEA/DRFMC in Grenoble. The source was moved to LNS in May 1998 and since then it is operating with excellent results. During 1993–95, the concept of High B mode, on which SERSE was based, was tested at MSU-NSCL and the results have been applied to other sources, including the room temperature CAESAR that will share with SERSE the duty of the production of ions for the cyclotron. Even though the performances of this source are not comparable to the ones of SERSE, CAESAR is able to perfectly fulfill the ordinary request of our accelerator complex. The last project of LNS concerns the design of a scaled version of SERSE with higher field, to be operated at the gyrotron frequency (28 GHz or higher). The results of the existing sources will be reviewed, along with the main features of the new project. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150334
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  • 7
    Electronic Resource
    Electronic Resource
    Comparison of the charge state distributions of electron cyclotron resonance ion sources working in high B mode at different frequencies (1998)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 69 (1998), S. 3081-3082 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The behavior of the two superconducting electron cyclotron resonance ion sources of Michigan State University-National Superconducting Cyclotron Laboratory and of INFN-Laboratori Nazionali del Sud, operating respectively at 6.4 and 14 GHz is compared in this note. The charge state distributions present a similar shape, when both the sources are optimized for the production of high charge state ions. The beam intensity is roughly proportional to the square of the frequency which may be explained by the difference in plasma density. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1149061
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  • 8
    Electronic Resource
    Electronic Resource
    Effects of frequency and magnetic field scaling on the superconducting electron cyclotron resonance ion source at MSU-NSCL (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 4109-4113 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A series of systematic tests have been carried out on the superconducting electron cyclotron resonance ion source SCECRIS at the Michigan State University National Superconducting Cyclotron Laboratory in order to better understand the role of different parameters which determine the performance of these sources. A relevant part of these tests has been focused on the role of magnetic field and microwave frequency, with the goal of demonstrating the capability of low frequency electron cyclotron resonance ion sources to produce high ion charge states, in spite of their relative low plasma density. This goal can be achieved using a very high magnetic confining field, according to the concept of a high B mode. A comparison of the source performance at 2.45 and 6.4 GHz for different levels of magnetic field is described in this article. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147556
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  • 9
    Electronic Resource
    Electronic Resource
    MIDAS, a high efficiency microwave discharge ion source for the EXCYT facility : Proceedings of the 5th international conference on ion sources (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 1110-1112 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A microwave discharge ion source has been designed in order to obtain high efficiencies for positive ionization of the recoils to be produced at the exotics at the cyclotron Tandem facility. After a charge exchange process the negative ions will be injected into the 15-MV Tandem, already working at the Laboratorio Nazionale del Sud. The short ionization time and the fast wall recycling make this source very well suited for the purpose of high efficiency ionization of the recoils. The operational principle and the design are described in the following.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145080
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  • 10
    Electronic Resource
    Electronic Resource
    Off-line efficiency measurements of the microwave discharge source (MIDAS) at the Laboratorio Nazionale del Sud : Proceedings of the 7th international conference on ion sources (1998)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 69 (1998), S. 747-749 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The aim of the EXCYT project at the Laboratorio Nazionale del Sud (LNS) is the production of radioactive beams, and for this we need to carry out the ionization of recoils produced in a target with as high an efficiency as possible. In order to obtain efficient positive ionization the microwave discharge ion source (MIDAS) has been designed to be followed by a charge exchange canal. A prototype of this source has been designed, built, and tested at the LNS and a description of this source is presented in this article along with the preliminary results and a design of the final version. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148564
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