A modified magnetic bottle electron spectrometer for the detection of multiply charged ions in coincidence with all correlated electrons: decay pathways to Xe³⁺ above xenon-4d ionization threshold

Abstract

Single-photon multiple photoionization results from electron correlations that make this process possible beyond the independent electron approximation. To study this phenomenon experimentally, the detection in coincidence of all emitted electrons...

Auger photoelectron coincidence spectroscopy of molecules adsorbed on a gold wire surface

“…Another possible development could be to exploit the loss angle of the magnetic bottle that corresponds to electrons going towards the magnet that is about ±10 • and corresponds to ∼1% of 4π solid angle while 99% of the electrons are reflected toward the magnetic bottle. Using a hollow magnet as in [20] it should be possible to analyse the electron going through the hole with a high-resolution analyser. The coincidence efficiency should be close to 1% because the second electron is always detected in the MB-TOF (with the only limit of MCP detection efficiency).…”

“…The coincidence efficiency should be close to 1% because the second electron is always detected in the MB-TOF (with the only limit of MCP detection efficiency). In a very preliminary experiment, it has been possible to detect electrons going through the magnet hole with the ion TOF spectrometer [20] by changing the MCP polarities to detect electrons rather than ions. However, no true coincidences could be observed because the regions seen by the two spectrometers were probably different if the magnet was tilted.…”

Coincidence measurements of photodouble ionization of benzene and thiophene

“…This type of analyzer, which is based on the measurement of the time-of-flight of the photoelectrons, provides highly efficient detection of several electrons in coincidence and is characterized by high resolution. Magnetic bottle spectrometers have been extensively used to study the energy spectra of dications 17 and to produce photoproduct coincidence maps, which inform molecular fragmentation and dissociation pathways [17][18][19] but provide no information on the angular distribution.…”