Characterization of the background in epithermal neutron scattering measurements at pulsed neutron sources

Pietropaolo, A.; Tardocchi, M.; Schooneveld, E.M.; Senesi, R.

doi:10.1016/j.nima.2006.08.116

Cited by 29 publications

(32 citation statements)

References 14 publications

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“…assuming the absence of background. A more complete expression should contain background terms, as already discussed in a previous experimental paper [39]. The count rate in Eq.…”

Section: A2 the Rd Configurationmentioning

confidence: 98%

Deep inelastic neutron scattering on 207Pb and NaHF2 as a test of a detectors array on the VESUVIO spectrometer

Pietropaolo

Senesi

2008

Nuclear Instruments and Methods in Physics Research Section A:

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A prototype array of resonance detectors for deep inelastic neutron scattering experiments has been installed on the VESUVIO spectrometer, at the ISIS spallation neutron source. Deep inelastic neutron scattering measurements on a reference lead sample and on NaHF 2 molecular system are presented. Despite on an explorative level, the results obtained for the values of mean kinetic energy hE k i are found in good agreement with the theoretical predictions, thus assessing the potential capability of the device for a routine use on the instrument. r

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“…assuming the absence of background. A more complete expression should contain background terms, as already discussed in a previous experimental paper [39]. The count rate in Eq.…”

Section: A2 the Rd Configurationmentioning

confidence: 98%

Deep inelastic neutron scattering on 207Pb and NaHF2 as a test of a detectors array on the VESUVIO spectrometer

Pietropaolo

Senesi

2008

Nuclear Instruments and Methods in Physics Research Section A:

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“…it assumes the absence of background. A more complete expression should contain background terms, as already discussed in previous experimental papers [44,45]. The count rate of Eq.…”

Section: The Resonance Detector Configurationmentioning

confidence: 99%

Enhancing the performances of a resonance detector spectrometer for deep inelastic neutron scattering measurements

Filabozzi¹,

Pace²,

Pietropaolo

2012

Nuclear Instruments and Methods in Physics Research Section A:

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a b s t r a c tThe possibility is explored to sum up neutron Compton profiles at different scattering angles in deep inelastic neutron scattering measurements within the Resonance Detector (RD) configuration to enhance the statistics for a more reliable extraction of the momentum distribution of the constituents in the target. The RD configuration allows to select the energy of the scattered neutrons up to several tens of electron Volt, thus accessing energy and wave vector transfers well above 1 eV and 30ÅÀ 1 , respectively. In the high-q/o regime, the final state effects could be considered as negligible, as shown in a series of simulations using a Monte Carlo method with different inverse geometry instrument setups. The simulations show that it could be possible to conceive an instrument set up where the RD configuration allows the proper summation of several spectra at different scattering angles, providing a good separation of the proton recoil signal from that of the heavier atoms, thus avoiding the cell subtraction by fitting procedure.

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“…The actual configuration of VESUVIO has 64 scintillator detectors for neutrons; these detectors are located between 0.5 and 0.75 m from the sample position, covering the angular range 33 o 2θ 73 o . At each scattering angle, the energy of the scattered neutrons, E n , is selected by using resonance detectors and foil-cycling techniques [12][13][14] with Au analyzers (E n = 4897 meV), providing a resolution ≈2Å −1 FWHM in y-space, along with a complete removal of the sample-independent background [15].…”

Section: Dins Experimental Setupmentioning

confidence: 99%

Water Proton Environment: A New Water Anomaly at Atomic Scale?

Giuliani

Ricci

Bruni

2013

Liquid Polymorphism

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Characterization of the background in epithermal neutron scattering measurements at pulsed neutron sources

Cited by 29 publications

References 14 publications

Deep inelastic neutron scattering on 207Pb and NaHF2 as a test of a detectors array on the VESUVIO spectrometer

Deep inelastic neutron scattering on 207Pb and NaHF2 as a test of a detectors array on the VESUVIO spectrometer

Enhancing the performances of a resonance detector spectrometer for deep inelastic neutron scattering measurements

Water Proton Environment: A New Water Anomaly at Atomic Scale?

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