Abstract
The modification of crystalline olivine under irradiation with 1.43-MeV deuterons was studied experimentally. For the first time, the partial destruction of olivine in the surface (100–200 nm) layer was found at a current density of 5–10 μA/cm2. This effect is caused by ionization and desorption of Mg and Fe atoms at deuteron fluences (3–8 × 1016cm–2) which are substantially below the amorphization threshold. It was suggested that the negative charge of the anion group SiO4 4–is neutralized by the interaction with the deuterium ions and Frenkel pairs. The mechanism of sputtering of the crystalline olivine surfaces under irradiation with H, D, He, and Ar ions was studied using of the TRIM 98 program.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
Bradley, J.P., Chemically Anomalous, Preaccretionally Irradiated Grains in Interplanetary Dust from Comets,Science, 1994, vol. 265, pp. 925-929.
Carrez, P., Leroux, H., Cordier, P., and Guyot, F., Electron-Irradiation-Induced Phase Transformation and Fractional Volatilization in (Mg, Fe)2SiO4Olivine Thin Films,Philosoph. Magazine A, 2001, vol. 81,no. 12, pp. 2823-2840.
Carrez, P., Demyk, K., Cordier, P.,et al., Low Energy Helium Ion Irradiation-Induced Amorphization and Chemical Changes in Olivine: Insights for Silicate Dust Evolution in the Interstellar Medium,Met. Plan. Sci.,2002, vol. 37, pp. 1599-1614.
Grigor'ev, I.S. and Meilikhov, E.Z., Eds.,Fizicheskie velichiny: Spravochnik(Physical Values: A Handbook), Moscow: Energoatomizdat, 1991.
Guyot, F., Leroux, H., Carrez, P.,et al., Chemical Fractionations Induced by Irradiation in Early Solar Materials: Results from Laboratory Experiments,Geochim. Cosmochim. Acta, 2002, vol. 66,no. 15A, p. A300.
action_3.5.doc.
Kogan, D.L., Kazantsev, A.M., and Kuzmin, L.E., BEAM EXPERT—Integrated Software for Nuclear Analysis,Nucl. Instr. Meth. Phys. Res. Ser. B, 1994, vol. 88, pp. 495-498.
Kurt, V.G., Motion of the Sun through the Interstellar Medium,Astrofizika i kosmicheskaya fizika(Astrophysics and Cosmophysics), Syunyaev, R.A., Ed., Moscow: Nauka, 1982, pp. 268-292.
Kuzmin, L.E., Shilobreeva, S.N., Kazantsev, A.M., and Minaev, V.M., Radiative-Accelerated Diffusion of the Carbon into the Olivine Crystals,Kratk. Soobshch. Fiz., Moscow: FIAN, 1998, no. 9, pp. 12-16.
Leroux, H., Demyk, K., Carrez, P.,et al., He+Irradiation-Induced Structural and Chemical Modifications in Olivine: Insights for Dust Alteration in the Interstellar Medium,64th Annu. Meteorit. Soc. Meeting, 2001, p. 5273.
Reedy, R.C., Recent Solar Energetic Particles: Updates and Trends,Lunar Planet. Sci., 2002, vol. 33, p. 1938.
Shilobreeva, S.N., Kadik, A.A., Minaev, V.M.,et al., Detection of Carbon in the Natural Crystals with Abyssal Origin,Dokl. Akad. Nauk SSSR, 1987, no. 2, pp. 457-461.
Shrempel, F., Jager, C., Dorschner, J.,et al., Study of the Amorphization Process of MgSiO3by Ion Irradiation as a Form of Dust Processing in Astrophysical Environments,Nucl. Instrum. Meth. Phys. Res. Ser. B, 2002, vol. 191, pp. 411-415.
Tielens, A.G.G.M., Interstellar Depletions and the Life Cycle of Interstellar Dust,Astrophys J., 1998, vol. 499, pp. 267-272.
Woodruff, D.P. and Delchar, T.A.,Modern Techniques of Surface Science, New York: Cambridge Univ. Press, 1986. Translated under the titleSovremennye metody issledovaniya poverkhnosti, Moscow: Mir, 1989.
Ziegler, J.F., SRIM: The Stopping Power and Range of Ions in Matter, IBM Manual,IBM Publications, 1996, http: //www.srim.org/.
Ziegler, J.F., Biersack, J.P., and Littmark, U.,The Stopping and Ranges of Ions in Solids, New York: Pergamon, 1988.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Shilobreeva, S.N., Kuzmin, L.E. Simulation of the Ion Modification Processes in the Silicate Dust of Protoplanetary Disks. Solar System Research 38, 59–65 (2004). https://doi.org/10.1023/B:SOLS.0000015156.06504.d0
Issue Date:
DOI: https://doi.org/10.1023/B:SOLS.0000015156.06504.d0