Radiolysis and sputtering of carbon dioxide ice induced by swift Ti, Ni, and Xe ions

C. Mejía; M. Bender; D. Severin; C. Trautmann; Ph Boduch; V. Bordalo; A. Domaracka; X. Y. Lv; R. Martinez; H. Rothard

doi:10.1016/j.nimb.2015.09.039

Radiolysis and sputtering of carbon dioxide ice induced by swift Ti, Ni, and Xe ions

C. Mejía
, M. Bender
, D. Severin
, C. Trautmann
, Ph Boduch
, V. Bordalo
, A. Domaracka
, X. Y. Lv
, R. Martinez
, H. Rothard

Boulevard Henri Becquerel
Pontifícia Universidade Católica do Rio de Janeiro
GSI Helmholtz Centre for Heavy Ion Research
Technische Universität Darmstadt
Observatório Nacional
Universidade Federal do Amapá

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Solid carbon dioxide (CO₂) is found in several bodies of the solar system, the interstellar medium (ISM) and young stellar objects, where it is exposed to cosmic and stellar wind radiation. Here, the chemical and physical modifications induced by heavy ion irradiation of pure solid CO₂ at low temperature (T = 15-30 K) are analyzed. The experiments were performed with Ti (550 MeV) and Xe (630 MeV) ions at the UNILAC of GSI/Darmstadt and with Ni ions (46 and 52 MeV) at IRRSUD of GANIL/Caen. The evolution of the thin CO₂ ice films (deposited on a CsI window) was monitored by mid-infrared absorption spectroscopy (FTIR). The dissociation rate of CO₂, determined from the fluence dependence of the IR absorption peak intensity, is found to be proportional to the electronic stopping power S_e. We also confirm that the sputtering yield shows a quadric increase with electronic stopping power. Furthermore, the production rates of daughter molecules such as CO, CO₃ and O₃ were found to be linear in S_e.

Original language	English
Pages (from-to)	477-481
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	365
DOIs	https://doi.org/10.1016/j.nimb.2015.09.039
State	Published - 15 Dec 2015
Externally published	Yes

Keywords

Astrophysical ices
Heavy ions
Radiation chemistry

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10.1016/j.nimb.2015.09.039

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Mejía, C., Bender, M., Severin, D., Trautmann, C., Boduch, P., Bordalo, V., Domaracka, A., Lv, X. Y., Martinez, R., & Rothard, H. (2015). Radiolysis and sputtering of carbon dioxide ice induced by swift Ti, Ni, and Xe ions. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 365, 477-481. https://doi.org/10.1016/j.nimb.2015.09.039

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title = "Radiolysis and sputtering of carbon dioxide ice induced by swift Ti, Ni, and Xe ions",

abstract = "Solid carbon dioxide (CO2) is found in several bodies of the solar system, the interstellar medium (ISM) and young stellar objects, where it is exposed to cosmic and stellar wind radiation. Here, the chemical and physical modifications induced by heavy ion irradiation of pure solid CO2 at low temperature (T = 15-30 K) are analyzed. The experiments were performed with Ti (550 MeV) and Xe (630 MeV) ions at the UNILAC of GSI/Darmstadt and with Ni ions (46 and 52 MeV) at IRRSUD of GANIL/Caen. The evolution of the thin CO2 ice films (deposited on a CsI window) was monitored by mid-infrared absorption spectroscopy (FTIR). The dissociation rate of CO2, determined from the fluence dependence of the IR absorption peak intensity, is found to be proportional to the electronic stopping power Se. We also confirm that the sputtering yield shows a quadric increase with electronic stopping power. Furthermore, the production rates of daughter molecules such as CO, CO3 and O3 were found to be linear in Se.",

keywords = "Astrophysical ices, Heavy ions, Radiation chemistry",

author = "C. Mej{\'i}a and M. Bender and D. Severin and C. Trautmann and Ph Boduch and V. Bordalo and A. Domaracka and Lv, \{X. Y.\} and R. Martinez and H. Rothard",

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doi = "10.1016/j.nimb.2015.09.039",

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Mejía, C, Bender, M, Severin, D, Trautmann, C, Boduch, P, Bordalo, V, Domaracka, A, Lv, XY, Martinez, R & Rothard, H 2015, 'Radiolysis and sputtering of carbon dioxide ice induced by swift Ti, Ni, and Xe ions', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 365, pp. 477-481. https://doi.org/10.1016/j.nimb.2015.09.039

TY - JOUR

T1 - Radiolysis and sputtering of carbon dioxide ice induced by swift Ti, Ni, and Xe ions

AU - Mejía, C.

AU - Bender, M.

AU - Severin, D.

AU - Trautmann, C.

AU - Boduch, Ph

AU - Bordalo, V.

AU - Domaracka, A.

AU - Lv, X. Y.

AU - Martinez, R.

AU - Rothard, H.

PY - 2015/12/15

Y1 - 2015/12/15

N2 - Solid carbon dioxide (CO2) is found in several bodies of the solar system, the interstellar medium (ISM) and young stellar objects, where it is exposed to cosmic and stellar wind radiation. Here, the chemical and physical modifications induced by heavy ion irradiation of pure solid CO2 at low temperature (T = 15-30 K) are analyzed. The experiments were performed with Ti (550 MeV) and Xe (630 MeV) ions at the UNILAC of GSI/Darmstadt and with Ni ions (46 and 52 MeV) at IRRSUD of GANIL/Caen. The evolution of the thin CO2 ice films (deposited on a CsI window) was monitored by mid-infrared absorption spectroscopy (FTIR). The dissociation rate of CO2, determined from the fluence dependence of the IR absorption peak intensity, is found to be proportional to the electronic stopping power Se. We also confirm that the sputtering yield shows a quadric increase with electronic stopping power. Furthermore, the production rates of daughter molecules such as CO, CO3 and O3 were found to be linear in Se.

AB - Solid carbon dioxide (CO2) is found in several bodies of the solar system, the interstellar medium (ISM) and young stellar objects, where it is exposed to cosmic and stellar wind radiation. Here, the chemical and physical modifications induced by heavy ion irradiation of pure solid CO2 at low temperature (T = 15-30 K) are analyzed. The experiments were performed with Ti (550 MeV) and Xe (630 MeV) ions at the UNILAC of GSI/Darmstadt and with Ni ions (46 and 52 MeV) at IRRSUD of GANIL/Caen. The evolution of the thin CO2 ice films (deposited on a CsI window) was monitored by mid-infrared absorption spectroscopy (FTIR). The dissociation rate of CO2, determined from the fluence dependence of the IR absorption peak intensity, is found to be proportional to the electronic stopping power Se. We also confirm that the sputtering yield shows a quadric increase with electronic stopping power. Furthermore, the production rates of daughter molecules such as CO, CO3 and O3 were found to be linear in Se.

KW - Astrophysical ices

KW - Heavy ions

KW - Radiation chemistry

UR - https://www.scopus.com/pages/publications/84948384981

U2 - 10.1016/j.nimb.2015.09.039

DO - 10.1016/j.nimb.2015.09.039

M3 - Artículo

AN - SCOPUS:84948384981

SN - 0168-583X

VL - 365

SP - 477

EP - 481

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Radiolysis and sputtering of carbon dioxide ice induced by swift Ti, Ni, and Xe ions

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