Swelling and creation of color centers in MgF2 single crystals irradiated with energetic heavy ions

A. S. El-Said; R. Neumann; K. Schwartz; C. Trautmann

doi:10.1016/j.nimb.2005.11.110

Swelling and creation of color centers in MgF₂ single crystals irradiated with energetic heavy ions

A. S. El-Said^*
, R. Neumann
, K. Schwartz
, C. Trautmann

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

23 Scopus citations

Abstract

Single crystals of MgF₂ were irradiated with different ions of specific energy between 1.4 and 11.1 MeV/u. Using UV-Vis absorption spectroscopy, the creation of color centers was analysed as a function of the ion fluence and energy loss. The concentration of single F- and F ₂-centers versus fluence exhibits a nonlinear evolution similar as in LiF. The creation efficiency of color centers and their thermal stability deduced from isochronal annealing experiments are discussed in terms of aggregation as well as recombination of electron and hole centers. In addition, profilometry measurements were performed quantifying ion-induced volume changes as a function of the beam parameters.

Original language	English
Pages (from-to)	250-254
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	245
Issue number	1
DOIs	https://doi.org/10.1016/j.nimb.2005.11.110
State	Published - Apr 2006
Externally published	Yes

Keywords

Color centers
MgF
Swelling
Thermal annealing

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nimb.2005.11.110

Cite this

@article{b062d20ad99047f0a1001c23046b20a1,

title = "Swelling and creation of color centers in MgF2 single crystals irradiated with energetic heavy ions",

abstract = "Single crystals of MgF2 were irradiated with different ions of specific energy between 1.4 and 11.1 MeV/u. Using UV-Vis absorption spectroscopy, the creation of color centers was analysed as a function of the ion fluence and energy loss. The concentration of single F- and F 2-centers versus fluence exhibits a nonlinear evolution similar as in LiF. The creation efficiency of color centers and their thermal stability deduced from isochronal annealing experiments are discussed in terms of aggregation as well as recombination of electron and hole centers. In addition, profilometry measurements were performed quantifying ion-induced volume changes as a function of the beam parameters.",

keywords = "Color centers, MgF, Swelling, Thermal annealing",

author = "El-Said, \{A. S.\} and R. Neumann and K. Schwartz and C. Trautmann",

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language = "English",

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pages = "250--254",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

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}

Swelling and creation of color centers in MgF₂ single crystals irradiated with energetic heavy ions. / El-Said, A. S.; Neumann, R.; Schwartz, K. et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 245, No. 1, 04.2006, p. 250-254.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Swelling and creation of color centers in MgF2 single crystals irradiated with energetic heavy ions

AU - El-Said, A. S.

AU - Neumann, R.

AU - Schwartz, K.

AU - Trautmann, C.

PY - 2006/4

Y1 - 2006/4

N2 - Single crystals of MgF2 were irradiated with different ions of specific energy between 1.4 and 11.1 MeV/u. Using UV-Vis absorption spectroscopy, the creation of color centers was analysed as a function of the ion fluence and energy loss. The concentration of single F- and F 2-centers versus fluence exhibits a nonlinear evolution similar as in LiF. The creation efficiency of color centers and their thermal stability deduced from isochronal annealing experiments are discussed in terms of aggregation as well as recombination of electron and hole centers. In addition, profilometry measurements were performed quantifying ion-induced volume changes as a function of the beam parameters.

AB - Single crystals of MgF2 were irradiated with different ions of specific energy between 1.4 and 11.1 MeV/u. Using UV-Vis absorption spectroscopy, the creation of color centers was analysed as a function of the ion fluence and energy loss. The concentration of single F- and F 2-centers versus fluence exhibits a nonlinear evolution similar as in LiF. The creation efficiency of color centers and their thermal stability deduced from isochronal annealing experiments are discussed in terms of aggregation as well as recombination of electron and hole centers. In addition, profilometry measurements were performed quantifying ion-induced volume changes as a function of the beam parameters.

KW - Color centers

KW - MgF

KW - Swelling

KW - Thermal annealing

UR - https://www.scopus.com/pages/publications/33644519644

U2 - 10.1016/j.nimb.2005.11.110

DO - 10.1016/j.nimb.2005.11.110

M3 - Conference article

AN - SCOPUS:33644519644

SN - 0168-583X

VL - 245

SP - 250

EP - 254

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

IS - 1

ER -