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Mohammad M Alshorman ISMO, CNRS & Univ. Paris-Sud 11 (Directed by: Jean Marc Bizau) Photoionization of Singly Ionized Atomic and Molecular Nitrogen. JOURNEES SCIENTIFIQUES DE LEDOM 2012

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Outline Interests. Merged-beam experiment: N + Simulation: simulation of ions trajectories in MAIA setup to improve the intensity of the ion beam and overlap between the photon and ion. Preliminary results of N 2 +. Future Work.

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Interests Fundamental: Nice tool to study electron correlation effects. Plasmas diagnostics and modeling: Spectroscopic information: ionization thresholds, excitation energies Interpretation of the observations of the X-ray observatories (Chandra, XMM Newton). Dynamical information: Absolute PI cross sections, oscillator strengths. Theoretical interest: The majority of this experimental data has been benchmarked with state-of-the-art theoretical methods as R-matrix and MCDF (Multi- Configurational Dirac–Fork calculations) calculations.

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Merged-Beam Set-Up (MAIA) Endstation on SOLEIL Undulator PLEIADES Beamline ECRIS: electron cyclotron ion source, E: einzel lens, St: set of horizontal and vertical steerers, S: collimating slits, FC: Faraday cup, ED: electrostatic deflector, IR: interaction region, EQ: electrostatic quadrupole, SR: synchrotron radiation, PD: photodiode.

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Results The distribution for 1s 2 2s 2 2p 2 3 P, 1 D, 1 S and 1s 2 2s2p 3 5 S o are 0.54, 0.11, 0.03, 0.32 respectively.

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Results

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Future work. -We will continue with k-shell photoionization for N 2+ and N 3+ soon, at the end of this month. - We will extend our work with isonuclear sequence for O + ions. -We will try molecular Nitrogen with a new modified trap. -I will continue the simulation until the interaction region. -We will continue with k-shell photoionization for N 2+ and N 3+ soon, at the end of this month. - We will extend our work with isonuclear sequence for O + ions. -We will try molecular Nitrogen with a new modified trap. -I will continue the simulation until the interaction region.

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Jean-Marc Bizau, D. Cubaynes, S. Guilbaud, N. El Hassan ISMO, Univ. Orsay, France C. Miron, C. Nicolas, X. Liu, E. Robert, A. Giuliani Synchrotron SOLEIL, St Aubin, France C. Blancard CEA Bruyères-le-Châtel, France J. Lemaire LCP, Univ. Orsay, France R. Thissen IPAG, Université J. Fourier, Genoble, France M. Gharaibeh Jordan University, Irbid, Jordan B M McLaughlin CTAMOP, ITAMP, Belfast, UK. Acknowledgements

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Merci pour votre attention

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