Structural Modifications Induced by the Electronic Slowing Down of Swift Heavy Ions in Matter

1988 ◽  
Vol 128 ◽  
Author(s):  
J. C. Jousset ◽  
E. Balanzat ◽  
S. Bouffard ◽  
M. Toulemonde
Keyword(s):  
Heavy Ions ◽  
Energy Deposition ◽  
Heavy Ion ◽  
Structural Modifications ◽  
Slowing Down ◽  
Swift Heavy Ions ◽  
Swift Heavy Ion

In the last five years, the use of GeV heavy ions, such as those accelerated at GANIL, has lead to a breakthrough in the knowledge of the effects induced by the huge energy deposition which occurs during the slowing down of a swift heavy ion in matter.

Membrane architecture with ion-conducting channels through swift heavy ion induced graft copolymerization

2017 ◽  
Vol 5 (47) ◽  
pp. 24826-24835 ◽  
Author(s):  
V. Sproll ◽  
M. Handl ◽  
R. Hiesgen ◽  
K. A. Friedrich ◽  
T. J. Schmidt ◽  
...  
Keyword(s):  
Polymer Film ◽  
Heavy Ions ◽  
Graft Copolymerization ◽  
Heavy Ion ◽  
Proton Conducting ◽  
Swift Heavy Ions ◽  
Swift Heavy Ion ◽  
Ion Conducting ◽  
Subsequent Modification ◽  
Membrane Architecture

Swift heavy ions create tracks of activated material in a polymer film for subsequent modification to form proton conducting channels.

Energy Loss for Swift Heavy Ions in Polymers: A New Approach for Effective Charge Parameterization

2013 ◽  
Vol 341 ◽  
pp. 129-141 ◽  
Author(s):  
Kalpana Sharma ◽  
Neetu ◽  
Anupam ◽  
Shyam Kumar
Keyword(s):  
Energy Loss ◽  
Effective Charge ◽  
Heavy Ions ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
Polyethylene Naphthalate ◽  
New Approach ◽  
Swift Heavy Ions ◽  
Swift Heavy Ion ◽  
Induced Changes

t is well established that the properties of the materials can be tailored as per specific requirements as a result of swift heavy ion irradiation. This is because of the radiation damage induced changes in the properties of the materials as a result of the energy loss process of the incident ions along their trajectory. In order to correlate such induced changes with the energy loss of the impinging ions, the exact evaluation of energy loss for swift ions in different materials is extremely important. Keeping in mind the polymers as versatile materials, in the present work, we have focused on energy loss calculations for swift heavy ions with Z= 3-29 in different polymeric absorbers, e.g. Polypropylene PP (C3H6), Polycarbonate PC (C16H14O3), Polyethylene terepthalate PET (C10H8O4), Polyethylene naphthalate PEN (C7H5O2), Diethylene glycol bis (allyl carbonate) CR-39 (C12H18O7), Cellulose nitrate LR-115 (C6H9O9N2) and Polypyromellitimide KAPTON (C22H10O5N2) in the energy range 0.5-6.00 MeV/n. The present calculations have been made by employing the proper energy loss formulation applicable both at low as well as high energies, involving a new approach for effective charge parameterization without any empirical/semi-empirical means. A close agreement between these calculated and experimentally measured values has been observed. Such calculations will provide an input towards the modeling or simulation for swift heavy ion induced changes in the properties of materials.

Folding Graphene with Swift Heavy Ions

2011 ◽  
Vol 1354 ◽  
Author(s):  
Sevilay Akcöltekin ◽  
Hanna Bukowska ◽  
Ender Akcöltekin ◽  
Henning Lebius ◽  
Marika Schleberger
Keyword(s):  
Raman Spectroscopy ◽  
Atomic Force Microscopy ◽  
Kinetic Energy ◽  
Heavy Ions ◽  
Standard Technique ◽  
Heavy Ion ◽  
Force Microscopy ◽  
Swift Heavy Ions ◽  
Atomic Force ◽  
Swift Heavy Ion

ABSTRACTSwift heavy ion induced modifications on graphene were investigated by means of atomic force microscopy and Raman spectroscopy. For the experiment graphene was exfoliated onto different substrates (SrTiO3 (100), TiO2(100), Al2O3(1102) and 90 nm SiO2/Si) by the standard technique. After irradiation with heavy ions of 93 MeV kinetic energy and under glancing angles of incidence, characteristic folding structures are observed. The folding patterns on crystalline substrates are generally larger and are created with a higher efficiency than on the amorphous SiO2. This difference is attributed to the relatively large distance between graphene and SiO2 of d ≈ 1 nm.

Multi-scale Investigation of Heterogeneous Swift Heavy Ion Tracks in Stannate Pyrochlore

2021 ◽  
Author(s):  
Eric O'Quinn ◽  
Cameron Tracy ◽  
William F. Cureton ◽  
Ritesh Sachan ◽  
Joerg C. Neuefeind ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Heavy Ion ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structural Modifications ◽  
Multi Scale ◽  
Ion Tracks ◽  
Swift Heavy Ion ◽  
Transmission Electron

Er2Sn2O7 pyrochlore was irradiated with swift heavy Au ions (2.2 GeV), and the induced structural modifications were systematically examined using complementary characterization techniques including transmission electron microscopy (TEM), X-ray diffraction...

Microstructure of Swift Heavyion Irradiated MgAl204 Spinel

1998 ◽  
Vol 540 ◽  
Author(s):  
S.J. Zinkle ◽  
Hj. Matzke ◽  
V.A. Skuratov
Keyword(s):  
Heavy Ions ◽  
Room Temperature ◽  
Heavy Ion ◽  
Elastic Collision ◽  
Plan View ◽  
Volumetric Expansion ◽  
Ion Tracks ◽  
Swift Heavy Ion ◽  
Transmission Electron ◽  
Temperature Irradiation

AbstractPlan view and cross-section transmission electron microscopy was used to investigate the microstructure of magnesium aluminate spinel (MgAl2O4) following room temperature irradiation with either 430 MeV Kr, 614 MeV Xe, or 72 MeV I ions. The fluences ranged from 1×1016/m2 (single track regime) to 1×1020/m2. Destruction of the ordered spinel crystal structure on both the anion and cation sublattices was observed in the ion tracks at low fluences. At intermediate fluences, the overlapping ion tracks induced the formation of a new metastable crystalline phase. Amorphization with a volumetric expansion of ∼35% was observed in spinel irradiated with swift heavy ions (electronic stopping powers >7 keV/nm) at fluences above 1×1019/m2. These results demonstrate that swift heavy ion radiation can induce microstructural changes not achievable with conventional elastic collision irradiation at comparable temperatures.

Swift heavy ion induced optical and structural modifications in RF sputtered nanocrystalline ZnO thin film

2017 ◽  
Vol 91 (5) ◽  
pp. 547-554 ◽  
Author(s):  
S. K. Singh ◽  
R. Singhal ◽  
R. Vishnoi ◽  
V. V. S. Kumar ◽  
P. K. Kulariya
Keyword(s):  
Thin Film ◽  
Heavy Ion ◽  
Zno Thin Film ◽  
Structural Modifications ◽  
Swift Heavy Ion

A poly(vinylidene fluoride-co-hexafluoro propylene) nanohybrid membrane using swift heavy ion irradiation for fuel cell applications

2015 ◽  
Vol 3 (19) ◽  
pp. 10413-10424 ◽  
Author(s):  
Karun Kumar Jana ◽  
Amit K. Thakur ◽  
Vinod K. Shahi ◽  
Devesh K. Avasthi ◽  
Dipak Rana ◽  
...  
Keyword(s):  
Heavy Ions ◽  
Vinylidene Fluoride ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
High Energy ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion ◽  
Thin Polymer ◽  
Poly Vinylidene Fluoride ◽  
Amorphous Zone

Through channels in thin polymer/nanohybrid films have been made by irradiating with high energy swift heavy ions (SHI) followed by selective chemical etching of the amorphous zone in the latent track created by SHI during the bombardment.

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