Journal: Review of Scientific Instruments

Abbreviation

Rev Sci Instrum

Publisher

American Institute of Physics

Journal Volumes

ISSN

0034-6748
1089-7623

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Publications1 - 10 of 145
  • Note: An iterative algorithm to improve colloidal particle locating
    Item type: Journal Article
    Jensen, Katharine E.; Nakamura, Nobuo (2016)
    Review of Scientific Instruments
  • Advanced photoelectric effect experiment beamline at Elettra
    Item type: Journal Article
    Panaccione, G.; Vobornik, I.; Fujii, J.; et al. (2009)
    Review of Scientific Instruments
    We report the main characteristics of the advanced photoelectric effect experiments beamline, operational at Elettra storage ring, featuring a fully independent double branch scheme obtained by the use of chicane undulators and able to keep polarization control in both linear and circular mode. The paper describes the novel technical solutions adopted, namely, (a) the design of a quasiperiodic undulator resulting in optimized suppression of higher harmonics over a large photon energy range (10–100 eV), (b) the thermal stability of optics under high heat load via cryocoolers, and (c) the end station interconnected setup allowing full access to off-beam and on-beam facilities and, at the same time, the integration of users’ specialized sample growth chambers or modules.
  • A 4 K FT-ICR cell for infrared ion spectroscopy
    Item type: Journal Article
    Fritsche, Lukas; Bach, Andreas; Miloglyadova, Larisa; et al. (2018)
    Review of Scientific Instruments
    We present the design of the newly constructed cryogenic Fourier-transform ion cyclotron resonance (FT-ICR) ion trap for infrared ion spectroscopy. Trapped ions are collisionally cooled by the pulsed introduction of buffer gas into the cell. Using different buffer gases and cell temperatures, we record action spectra of weakly bound neutral gas-analyte complexes with an IR laser source. We show for the first time that ion-He complexes can be observed in an ICR cell at temperatures around 4 K. We compare the experimental vibrational spectra of Ag(PPh3)2+ obtained by tagging with different neutral gases: He, Ne, Ar, H2, and N2 to computed vibrational spectra. Furthermore, the conditions necessary for the formation of neutral tags within an ICR ion trap are studied.
  • Development of a cold-neutron imaging detector based on thick gaseous electron multiplier
    Item type: Journal Article
    Cortesi, M.; Zboray, R.; Kaestner, A.; et al. (2013)
    Review of Scientific Instruments
    We present the results of our recent studies on a cold-neutron imaging detector prototype based on THick Gaseous Electron Multiplier (THGEM). The detector consists of a thin Boron layer, for neutron-to-charged particle conversion, coupled to two THGEM electrodes in cascade for charge amplification and a position-sensitive charge-readout anode. The detector operates in Ne/(5%)CF4, at atmospheric pressure, in a stable condition at a gain of around 104. Due to the geometrical structure of the detector elements (THGEM geometry and charge read-out anode), the image of detector active area shows a large inhomogeneity, corrected using a dedicated flat-filed correction algorithm. The prototype provides a detection efficiency of 5% and an effective spatial resolution of the order of 1.3 mm.
  • Detailed precision and accuracy analysis of swarm parameters from a pulsed Townsend experiment
    Item type: Journal Article
    Haefliger, Pascal; Franck, Christian (2018)
    Review of Scientific Instruments
    A newly built Pulsed Townsend experimental setup which allows to measure both electron and ion currents is presented. The principle of Pulsed Townsend measurements itself is well established to obtain swarm parameters such as the effective ionization rate coefficient, the density-reduced mobility and the density-normalized longitudinal diffusion coefficient. Main novelty of the present contribution is a detailed and comprehensive analysis of the entire measurement and evaluation chain with respect to accuracy, precision and reproducibility. The influence of the input parameters (gap distance, applied voltage, measured pressure and temperature) is analyzed in detail. An overall accuracy of $\pm$0.5\% in the density reduced electric field ($E/N$) is achieved, which is close to the theoretically possible limit using the chosen components. The precision of the experimental results is higher than the accuracy. Through an extensive measurement campaign, the repeatability of our measurements proved to be high and similar to the precision. The reproducibility of results at identical ($E/N$) is similar to the precision for different distances but decreases for varying pressures. For benchmark purposes, measurements for Ar, $\mathrm{CO_2}$ and $\mathrm{N_2}$ are presented and compared with our previous experimental setup, simulations and other experimental references.
  • Terahertz time-domain spectroscopy of materials under high pressure in a diamond anvil cell
    Item type: Journal Article
    Suter, Tim; Macdermid, Zia; Chen, Zekai; et al. (2026)
    Review of Scientific Instruments
    We present the combination of a broadband terahertz time-domain spectroscopy system (0.1–8 THz), a diamond anvil cell (DAC) capable of generating high pressure conditions of up to 10 GPa, and a cryostat reaching temperatures as low as 10 K. This combination allows us to perform equilibrium and time-resolved THz spectroscopy measurements of a sample while continuously tuning its temperature and pressure conditions. In this study, the procedures and characterizations necessary to carry out such experiments in a tabletop setup are presented. Due to the large modifications of the terahertz beam as it goes through the DAC, standard terahertz time-domain spectroscopy analysis procedures are no longer applicable. New methods to extract the pressure dependent material parameters are presented, both for samples homogeneously filling the DAC sample chamber as well as for bulk samples embedded in pressure media. Different pressure media are tested and evaluated using these new methods, and the obtained material parameters are compared to literature values. Time resolved measurements under pressure are demonstrated using an optical pump–THz probe scheme.
  • Enhanced optical waveguide light mode spectroscopy via detection of fluorophore absorbance
    Item type: Journal Article
    Halter, Martin; Gabi, Michael; Textor, Marcus; et al. (2006)
    Review of Scientific Instruments
  • Single-shot electron bunch length measurements using a spatial electro-optical autocorrelation interferometer
    Item type: Journal Article
    Sütterlin, Daniel; Erni, Daniel; Schlott, Volker; et al. (2010)
    Review of Scientific Instruments
  • Calorimetric low temperature detectors for low-energetic heavy ions and their application in accelerator mass spectrometry
    Item type: Journal Article
    Kraft-Bermuth, S.; Andrianov, V.A.; Bleile, A.; et al. (2009)
    Review of Scientific Instruments
  • X-ray scattering in the vorticity direction and rheometry from confined fluid
    Item type: Journal Article
    Pfleiderer, Patrick; Seung, Jae Baik; Zhenkun, Zhang; et al. (2014)
    Review of Scientific Instruments
Publications1 - 10 of 145