Measurement of neutron capture on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Xe</mml:mi><mml:mprescripts /><mml:none /><mml:mn>136</mml:mn></mml:mmultiscripts></mml:math>

Albert, J.; Daugherty, S. J.; Johnson, T. N.; O'Conner, Thomasina; Kaufman, L. J.; Couture, A.; Ullmann, J. L.; Krtička, M.

doi:10.1103/physrevc.94.034617

Cited by 9 publications

(7 citation statements)

References 26 publications

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“…a seajdaug@indiana.edu b Also at SLAC National Accelerator Laboratory As such, we have measured the production of γ rays in 136 Xe from fast neutron interactions. This complements previous work [8] studying γ rays from neutron capture on 136 Xe. While neutron-induced γ rays are not expected to be a significant background in future deep underground detectors, a detailed understanding of them may help identify otherwise mysterious signals.…”

Section: Introductionsupporting

confidence: 83%

Neutron inelastic scattering measurements on Xe136 at En=0.7 to 100 MeV

et al. 2018

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Experiments searching for neutrinoless double beta decay (0νββ) require precise energy calibration and extremely low backgrounds. One of the most popular isotopes for 0νββ experiments is 136 Xe. In support of these experiments, the neutron inelastic scattering properties of this isotope have been measured at the GErmanium Array for Neutron Induced Excitations (GEANIE) at the Los Alamos Neutron Science Center. Time-of-flight techniques are utilized with high-purity germanium detectors to search for inelastic scattering γ rays for neutron energies between 0.7 and 100 MeV. Limits are set on production of yet-unobserved γ rays in the energy range critical for 0νββ studies, and measurements are made of multiple γ-ray production cross sections. In particular, we have measured the production of the 1313 keV γ ray which comes from the transition of the first-excited to ground state of 136 Xe. This neutron-induced γ line may be useful for a novel energy calibration technique, described in this paper.

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Section: Introductionsupporting

confidence: 83%

Neutron inelastic scattering measurements on Xe136 at En=0.7 to 100 MeV

et al. 2018

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“…These Kapton windows allow neutrons to pass through while minimizing scattering. The same apparatus was used for a previous measurement of the 136 Xe neutron capture cross section [14]. The target volume was filled with high purity (99.999 % Ar) gaseous natural argon and pressurized above the local atmospheric pressure throughout the data taking period.…”

Section: Methodsmentioning

confidence: 99%

Measurement of the neutron capture cross section on argon

et al. 2019

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The use of argon as a detection and shielding medium for neutrino and dark matter experiments has made the precise knowledge of the cross section for neutron capture on argon an important design and operational parameter. Since previous measurements were averaged over thermal spectra and have significant disagreements, a differential measurement has been performed using a Time-Of-Flight neutron beam and a ∼4π gamma spectrometer. A fit to the differential cross section from 0.015 − 0.15 eV, assuming a 1/v energy dependence, yields σ 2200 = 673 ± 26 (stat.) ± 59 (sys.) mb.

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“…The photon evaporation algorithm conserves energy and momentum, and appears to handle the dynamics of cascade production sufficiently well, although it has not been experimentally validated. Validation requires measurements of the γ spectra for each multiplicity 2 that have so far only been made for the target isotope 136 Xe [38]. Since the experimental concept relies on a comparison with simulations, a custom algorithm was implemented to generate nuclear recoils from neutron capture and used to calculate the uncertainty of the NR energy spectrum.…”

Section: A Neutron Modelmentioning

confidence: 99%

“…The model then uses the γ energy spectra and multiplicity distributions as inputs to generate the neutron capture recoil events. To the best of our knowledge, the γ energy spectra for each multiplicity and the multiplicity distributions have not been measured for any isotope of xenon except 136 Xe [38]. A custom model to generate recoil events was written using the γ spectra and multiplicities as input parameters to study the effect on the NR spectrum.…”

Section: Acknowledgmentsmentioning

confidence: 99%

Feasibility Study to use Neutron Capture for an Ultra-low Energy Nuclear-recoil Calibration in Liquid Xenon

Amarasinghe,

Coronel,

Huang

et al. 2022

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The feasibility of an ultra-low energy nuclear-recoil measurement in liquid xenon using neutron capture is investigated for a small (sub-kilogram) liquid xenon detector that is optimized for a high scintillation gain, and a pulsed neutron source. The measurement uses the recoil energies imparted to xenon nuclei during the de-excitation process following neutron capture, where promptly emitted γ cascades can provide the nuclei with up to 0.3 keVnr of recoil energy due to conservation of momentum. A successful calibration of scintillation photon and ionization electron yields below this energy will contribute to a greater sensitivity for liquid xenon experiments in searches for light WIMPs.

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Measurement of neutron capture onXe136

Cited by 9 publications

References 26 publications

Neutron inelastic scattering measurements on Xe136 at En=0.7 to 100 MeV

Neutron inelastic scattering measurements on Xe136 at En=0.7 to 100 MeV

Measurement of the neutron capture cross section on argon

Feasibility Study to use Neutron Capture for an Ultra-low Energy Nuclear-recoil Calibration in Liquid Xenon

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