Some Aspects of Gas Scintillation Counters

Northrop, J.A.; Nobles, R. A.

doi:10.1109/tns2.1956.4315548

Cited by 12 publications

(10 citation statements)

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“…Assuming m χ =100 GeV, present experimental limits imply σ χ,Xe < 10 −37 cm 2 and σ χ,Ar < 2 · 10 −39 cm 2 for scattering off the two nuclei. 2 At the same WIMP mass of 100 GeV, a simple estimate of expected scattering rates can be obtained from the particle flux in our galactic neighbourhood, where the WIMP density is ρ 0 ∼ 0.3 GeV/cm 3 [30] and the mean particle speed isv χ ∼ 270 km/s (assuming a stationary Earth in the galactic frame for simplicity). The WIMP flux is therefore Φ χ ∼ ρ 0vχ /m χ ∼ 10 5 s −1 cm −2 .…”

Section: Overview Of Detection Principlesmentioning

confidence: 99%

“…Using ∼7 e/keV as a reference for LXe [53,66,61,67], one can estimate that the nuclear recoil threshold in the ionization channel could be as low as a few hundred eV (Figure 7). 3 In the large detectors now under construction, calibration with 57 Co becomes problematic due to thicker vessels and self-shielding of the inner detector volume. It may become necessary to refer the nuclear recoil response to short-lived, internally-dispersed sources, e.g.…”

Section: Overview Of Detection Principlesmentioning

confidence: 99%

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Liquid noble gas detectors for low energy particle physics

2013

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We review the current status of liquid noble gas radiation detectors with energy threshold in the keV range, which are of interest for direct dark matter searches, measurement of coherent neutrino scattering and other low energy particle physics experiments. Emphasis is given to the operation principles and the most important instrumentation aspects of these detectors, principally of those operated in the double-phase mode. Recent technological advances and relevant developments in photon detection and charge readout are discussed in the context of their applicability to those experiments.

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Section: Overview Of Detection Principlesmentioning

confidence: 99%

Section: Overview Of Detection Principlesmentioning

confidence: 99%

Liquid noble gas detectors for low energy particle physics

2013

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“…Assuming m χ =100 GeV, present experimental limits imply σ χ,Xe < 10 −37 cm 2 and σ χ,Ar < 2 • 10 −39 cm 2 for scattering off the two nuclei. 2 At the same WIMP mass of 100 GeV, a simple estimate of expected scattering rates can be obtained from the particle flux in our galactic neighbourhood, where the WIMP density is ρ 0 ∼ 0.3 GeV/cm 3 [30] and the mean particle speed is vχ ∼ 270 km/s (assuming a stationary Earth in the galactic frame for simplicity). The WIMP flux is therefore Φ χ ∼ ρ 0 vχ /m χ ∼ 10 5 s −1 cm −2 .…”

Section: Overview Of Detection Principlesmentioning

confidence: 99%

Liquid noble gas detectors for low energy particle physics

Chepel,

Araújo

2012

Preprint

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“…In order to increase further the light output and match it to the maximum response of the photomultiplier photocathode used to observe the gas scintillation (above 300 nm), a layer of p-terphenyl [41] was vacuum-deposited on a highly reflective coating of MgO [43] on the inner walls and on the base of the chamber. P-terphenyl is a wavelength shifter that absorbs the ultraviolet emissions at 172 nm and part of the 20 eV photons, re-emitting at 340 nm [44].…”

Section: Description Of the Countermentioning

confidence: 99%

Results from the TARC experiment: spallation neutron phenomenology in lead and neutron-driven nuclear transmutation by adiabatic resonance crossing

Abánades

Aleixandre

Andriamonje

et al. 2002

Nuclear Instruments and Methods in Physics Research Section A:

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We summarize here the results of the TARC experiment whose main purpose is to demonstrate the possibility of using Adiabatic Resonance Crossing (ARC) to destroy efficiently Long-Lived Fission Fragments (LLFFs) in accelerator-driven systems and to validate a new simulation developed in the framework of the Energy Amplifier programme. An experimental set-up was installed in a CERN PS proton beam line to study how neutrons produced by spallation at relatively high energy ( E n ≥ 1 MeV) slow down quasi adiabatically with almost flat isolethargic energy distribution and reach the capture resonance energy of an element to be transmuted where they will have a high probability of being captured. Precision measurements of energy and space distributions of spallation neutrons (using 2.5 GeV/ c and 3.5 GeV/ c protons) slowing down in a 3.3 m × 3.3 m × 3 m lead volume and of neutron capture rates on LLFFs 99 Tc, 129 I, and several other elements were performed. An appropriate formalism and appropriate computational tools necessary for the analysis and understanding of the data were developed and validated in detail. Our direct experimental observation of ARC demonstrates the possibility to destroy, in a parasitic mode, outside the Energy Amplifier core, large amounts of 99 Tc or 129 I at a rate exceeding the production rate, thereby making it practical to reduce correspondingly the existing stockpile of LLFFs. In addition, TARC opens up new possibilities for radioactive isotope production as an alternative to nuclear reactors, in particular for medical applications, as well as new possibilities for neutron research and industrial applications.

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Some Aspects of Gas Scintillation Counters

Cited by 12 publications

References 0 publications

Liquid noble gas detectors for low energy particle physics

Liquid noble gas detectors for low energy particle physics

Liquid noble gas detectors for low energy particle physics

Results from the TARC experiment: spallation neutron phenomenology in lead and neutron-driven nuclear transmutation by adiabatic resonance crossing

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