Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Jochen Wieser"'
Publikováno v:
EPJ Techniques and Instrumentation, Vol 7, Iss 1, Pp 1-14 (2020)
Abstract Measurements of the absolute sensitivity of three different optical cameras are presented. An absolutely calibrated tungsten strip-lamp was used for calibrating the devices. An experimental method for determining the solid angle which is acc
Externí odkaz:
https://doaj.org/article/588493572e52467daec8ee9ed9225b4d
Publikováno v:
The European Physical Journal D. 77
Light emission from gas targets using heavy ion beam excitation is described. Typically 32S beams with ≈90 MeV (2.8 MeV/amu) particle energy were used. This study was performed in context of optical beam profile measurements. Optical transitions fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4eff0a377b9e18f82296b089cbad3eb
https://doi.org/10.1140/epjd/s10053-023-00624-6
https://doi.org/10.1140/epjd/s10053-023-00624-6
Publikováno v:
Organic Electronics. 41:9-16
Accurate measurements of the valence electronic structures of organic semiconductors are important for the development and understanding of organic electronic devices, materials, and interfaces. Ultraviolet photoelectron spectroscopy (UPS) is a well-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95cfc5cad13ea48c59b852b55128bc78
https://doi.org/10.1016/j.orgel.2016.11.032
https://doi.org/10.1016/j.orgel.2016.11.032
Publikováno v:
EPL (Europhysics Letters). 128:62002
The ratio of the scintillation intensity in the near-infrared (NIR) and in the vacuum-ultraviolet (VUV) from liquid argon with a volumetric fraction of of xenon (10 ppm) was studied with ion-beam excitation. Hydrogen, lithium, carbon, sulfur, and iod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f67e5c8ee910b154629bf3caf89bbd3
https://doi.org/10.1209/0295-5075/128/62002
https://doi.org/10.1209/0295-5075/128/62002
Publikováno v:
The European Physical Journal D. 56:325-334
The temperature dependences of the quenching rate constants of the states N2 (\({\rm C} \ {^{3}{ \rm \Pi }_{u}}\) v′=0,1) by N2 (X) and of the state N2 (\({\rm C} \ {^{3}{ \rm \Pi }_{u}} \ v^{\prime}=0\)) by O2 (X) are studied. Time-resolved light
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c91344e9301114a13f306e959172e0fc
https://doi.org/10.1140/epjd/e2009-00313-4
https://doi.org/10.1140/epjd/e2009-00313-4
Autor:
Jochen Wieser, Andreas Ulrich, Elisabeth Schramm, Michael Pütz, Martin Sklorz, Rasmus Schulte-Ladbeck, Rainer Schultze, Jasper Hölzer, Ralf Zimmermann
Publikováno v:
Analytical and Bioanalytical Chemistry. 395:1795-1807
For the detection of security-relevant substances at low concentrations in complex matrices, coupling of thermal desorption-single photon ionization-ion trap mass spectrometry (TD-SPI-ITMS) was successfully tested. The main advantage of taking solid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a93b29b4cd8c27f00b348b9996c66bb1
https://doi.org/10.1007/s00216-009-2916-4
https://doi.org/10.1007/s00216-009-2916-4
Publikováno v:
The European Physical Journal D. 54:103-109
The 1.73 μm XeI laser has been operated in a fully continuous mode using a table-top electron beam pumped laser setup. A 12 keV electron beam sent through a 300 nm thick silicon nitride membrane into a laser gas mixture of typically 600 mbar gas pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75013c447d02703955bff8a53ce405d3
https://doi.org/10.1140/epjd/e2009-00175-8
https://doi.org/10.1140/epjd/e2009-00175-8
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 597:105-109
Experimental evidence is found for the presence of collisional excitation mechanisms populating the vibrational levels v ′ = 0 , 1 of the N 2 ( C 3 Π u ) state in addition to electron impact excitation. Relative excitation efficiencies of the leve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a24e9b3a66f4d6b96bb42d8164238ba6
https://doi.org/10.1016/j.nima.2008.08.058
https://doi.org/10.1016/j.nima.2008.08.058
Autor:
Dmitry Varentsov, Vladimir E. Fortov, V. I. Turtikov, Jochen Wieser, A. Ulrich, B. Yu. Sharkov, A. Fertman, M. I. Kulish, A. Hug, Dieter H. H. Hoffmann, Serban Udrea, D. Nikolaev, V. Ya. Ternovoi, V.B. Mintsev, N. S. Shilkin, A. A. Golubev, Pavel Ni
Publikováno v:
Contributions to Plasma Physics. 48:586-594
Beam-induced fluorescence of dense gas targets has been studied for its application to measure the transverse intensity distribution of energetic focused heavy ion beams. Mechanisms of light emission are discussed on the basis of measured wavelength-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee78bef00eb2c447b30eb986b4cdc732
https://doi.org/10.1002/ctpp.200810092
https://doi.org/10.1002/ctpp.200810092
Publikováno v:
The European Physical Journal D. 48:383-388
Electron beams with particle energy of ~10 keV were sent through 300 nm thick ceramic (Si3N4 + SiO2) foils and the resulting electron energy distribution functions were recorded using a retarding grid technique. The results are compared with Monte Ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db21819b6715ac56be658cae959060f2
https://doi.org/10.1140/epjd/e2008-00121-4
https://doi.org/10.1140/epjd/e2008-00121-4