Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Ruette, N."'
Autor:
Backis, A., Khaplanov, A., Jebali, R. Al, Ammer, R., Apostolidis, I., Birch, J., Lai, C. -C., Deen, P. P., Etxegarai, M., de Ruette, N., Ramos, J. Freita, Förster, D. F., Haettner, E., Hall-Wilton, R., Hamilton, D., Höglund, C., Kadletz, P. M., Kanaki, K., Karnickis, E., Kirstein, O., Kolya, S., Kraujalyte, Z., Laloni, A., Livingston, K., Löhman, O., Maulerova, V., Mauritzon, N., Müller, F., Higuera, I. Lopez, Richter, T., Robinson, L., Roth, R., Shetty, M., Taylor, J., Woracek, R., Xiong, W.
Publikováno v:
Meas. Sci. Technol. 32 035903 (2021)
The boron-10 based Multi-Grid detector is being developed as an alternative to helium-3 based neutron detectors. At the European Spallation Source, the detector will be used for time-of-flight neutron spectroscopy at cold to thermal neutron energies.
Externí odkaz:
http://arxiv.org/abs/2006.01484
Autor:
de Ruette, N., Wolf, M., Giacomozzi, L., Alexander, J. D., Gatchell, M., Stockett, M. H., Haag, N., Zettergren, H., Schmidt, H. T., Cederquist, H.
We give a detailed description of an electrospray ion source test bench and a single-pass setup for ion fragmentation studies at the DESIREE infrastructure at Stockholm University. This arrangement allows for collision induced dissociation experiment
Externí odkaz:
http://arxiv.org/abs/1805.05075
Autor:
de Ruette, N., Dochain, A., Launoy, T., Nascimento, R. F., Kaminska, M., Stockett, M. H., Vaeck, N., Schmidt, H. T., Cederquist, H., Urbain, X.
Publikováno v:
Phys. Rev. Lett. 121, 083401 (2018)
We have measured total absolute cross sections for the Mutual Neutralization (MN) of O- with O+/N+. A fine resolution (of about 50 meV) in the kinetic energy spectra of the product neutral atoms allows unique identification of the atomic states parti
Externí odkaz:
http://arxiv.org/abs/1804.08457
Autor:
Chartkunchand, K. C., Stockett, M. H., Anderson, E. K., Eklund, G., Kristiansson, M. K., Kamińska, M., de Ruette, N., Blom, M., Björkhage, M., Källberg, A., Löfgren, P., Reinhed, P., Rosén, S., Simonsson, A., Zettergren, H., Schmidt, H. T., Cederquist, H.
Publikováno v:
Review of Scientific Instruments 89, 033112 (2018)
A sputter ion source with a solid graphite target has been used to produce dianions with a focus on carbon cluster dianions, $\text{C}_{n}^{2-}$, with $n=7-24$. Singly and doubly charged anions from the source were accelerated together to kinetic ene
Externí odkaz:
http://arxiv.org/abs/1804.00233
Autor:
Schmidt, H. T., Eklund, G., Chartkunchand, K. C., Anderson, E. K., Kamińska, M., de Ruette, N., Thomas, R. D., Kristiansson, M. K., Gatchell, M., Reinhed, P., Rosén, S., Simonsson, A., Källberg, A., Löfgren, P., Mannervik, S., Zettergren, H., Cederquist, H.
Publikováno v:
Phys. Rev. Lett. 119, 073001 (2017)
We apply near-threshold laser photodetachment to characterize the rotational quantum level distribution of OH$^-$ ions stored in the cryogenic ion-beam storage ring, DESIREE, at Stockholm University. We find that the stored ions relax to a rotational
Externí odkaz:
http://arxiv.org/abs/1803.10518
Autor:
Vissapragada, S., Buzard, C. F., Miller, K. A., O'Connor, A. P., de Ruette, N., Urbain, X., Savin, D. W.
We have incorporated our experimentally derived thermal rate coefficients for C + H$_3^+$ forming CH$^+$ and CH$_2^+$ into a commonly used astrochemical model. We find that the Arrhenius-Kooij equation typically used in chemical models does not accur
Externí odkaz:
http://arxiv.org/abs/1605.00048
Autor:
Stockett, M. H., Gatchell, M., Chen, T., de Ruette, N., Giacomozzi, L., Wolf, M., Schmidt, H. T., Zettergren, H., Cederquist, H.
Publikováno v:
J Phys Chem Lett 2015 6 4504
We have measured absolute cross sections for ultrafast (fs) single-carbon knockout from Polycyclic Aromatic Hydrocarbon (PAH) cations as functions of He-PAH center-of-mass collision energy in the range 10-200 eV. Classical Molecular Dynamics (MD) sim
Externí odkaz:
http://arxiv.org/abs/1511.05742
Autor:
O'Connor, A. P., Bruhns, H., Grussie, F., Koenning, T. P., Miller, K. A., de Ruette, N., Stützel, J., Savin, D. W., Urbain, X., Kreckel, H.
We demonstrate the use of high power diode laser stacks to photodetach fast hydrogen and carbon anions and produce ground term neutral atomic beams. We achieve photodetachment efficiencies of $\sim$7.4\% for H$^-$ at a beam energy of 10\,keV and $\si
Externí odkaz:
http://arxiv.org/abs/1509.00169
Autor:
de Ruette, N., Miller, K. A., O'Connor, A. P., Urbain, X., Buzard, C. F., Vissapragada, S., Savin, D. W.
We have measured the reaction of O + H3+ forming OH+ and H2O+. This is one of the key gas-phase astrochemical processes initiating the formation of water molecules in dense molecular clouds. For this work, we have used a novel merged fast-beams appar
Externí odkaz:
http://arxiv.org/abs/1508.07882
Autor:
O'Connor, A. P., Urbain, X., Stützel, J., Miller, K. A., de Ruette, N., Garrido, M., Savin, D. W.
We have investigated the chemistry of ${\rm C + H_3^+}$ forming CH$^+$, CH$_2^+$, and CH$_3^+$. These reactions are believed to be some of the key gas-phase astrochemical processes initiating the formation of organic molecules in molecular clouds. Fo
Externí odkaz:
http://arxiv.org/abs/1408.4696