State-of-the-art efficiency determination for a Si(Li) X-ray detector in the 3–40 keV energy range

Campbell, J. A.; McGhee, PL

doi:10.1016/0168-9002(86)91024-7

Cited by 77 publications

(12 citation statements)

References 37 publications

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“…The energy calibration was performed using X and γ -rays from an 241 Am radioactive source [66,67]. The source was separated from the crystal by a PTFE sheet in between as shown in Fig.…”

Section: Energy Calibrationmentioning

confidence: 99%

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Light yield of cold undoped CsI crystal down to 13 keV and the application of such crystals in neutrino detection

2020

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The light yield of an undoped CsI crystal at about 77 Kelvin was measured to be $$33.5 \, \pm \, 0.7$$ 33.5 ± 0.7 photo-electrons (PE) per keV electron-equivalent (keVee) in the energy range of [13, 60] keVee using X and $$\gamma $$ γ -rays from an $$^{241}$$ 241 Am radioactive source. Based on this experimental result, the performance of 10 kg cryogenic inorganic scintillating crystals coupled to SiPM arrays to probe non-standard neutrino interactions through the detection of coherent elastic neutrino-nucleus scatterings at the spallation neutron source, Oak Ridge National Laboratory, was examined in detail.

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“…The energy calibration was performed using X and γ -rays from an 241 Am radioactive source [66,67]. The source was separated from the crystal by a PTFE sheet in between as shown in Fig.…”

Section: Energy Calibrationmentioning

confidence: 99%

“…The energy and origin of each peak were identified and summarized in Table 2, based on Ref. [66] and the Table of Radioactive Isotopes [67]. The energy resolution achieved here is very similar to that of a typical NaI(Tl) detector at room temperature [68].…”

Section: Energy Calibrationmentioning

confidence: 99%

Light yield of cold undoped CsI crystal down to 13 keV and the application of such crystals in neutrino detection

2020

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“…In principle, an obvious and direct way to deal with calibrating a PIXE system is to undertake highly accurate, direct measurements of the absolute or relative efficiency. Formerly, we did extensive work of this type using radionuclide standards, but this is expensive and does not help sufficiently with the region below 5 keV that is now of major importance in our current work on major elements in geological materials . Efficiency measurements with synchrotron radiation have been extremely successful, but very few PIXE laboratories have access to synchrotron facilities.…”

Section: Approachmentioning

confidence: 99%

Role of the mass attenuation coefficient database in standardization of a silicon drift X‐ray detector for PIXE analysis

2017

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A simple, inexpensive procedure is described for calibrating a silicon drift detector‐based PIXE system for the analysis of geological and other “thick‐target” materials. It rests on the use of single element, chemical compound, and National Institute for Standards and Technology multielement standards. Much less effort has been focussed on the impact of mass attenuation coefficients on PIXE's analytical accuracy than on ionization cross sections and fluorescence yields. The calibrated system enables us to investigate the effects of inserting different mass attenuation coefficient datasets into the GUPIX database. For the K X‐rays of light elements, accuracy is significantly improved by replacing the formerly used XCOM self‐attenuation coefficients by the corresponding FFAST values; this effect decreases rapidly with increasing atomic number. Similar improvement was found for L X‐rays of medium‐Z, but not for high‐Z atoms.

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“…We have modelled the full shape of the fluorescence lines, including the low-energy tails as well as the high-energy tail contributions from the escape of Auger electrons and photoelectrons. Primary photon energies above the L 1 absorption edge of gold were used in other reported measurements [6,4,7], but we used also energies between the L 3 and L 2 edges in order to eliminate the uncertainties from quantities related to the individual L subshells.…”

Section: Introductionmentioning

confidence: 99%

Electrode thickness measurement of a Si(Li) detector for the SIXA array

Tikkanen

Hämäläinen

Huotari

1998

Nuclear Instruments and Methods in Physics Research Section A:

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Cathode electrodes of the Si(Li) detector elements of the SIXA X-ray spectrometer array are formed by gold-palladium alloy contact layers. The equivalent thickness of gold in one element was measured by observing the characteristic L-shell X-rays of gold excited by monochromatised synchrotron radiation with photon energies above the L3 absorption edge of gold. The results obtained at 4 different photon energies below the L2 edge yield an average value of 22.4(35) nm which is consistent with the earlier result extracted from detection efficiency measurements. PACS: 29.40.Wk; 85.30.De; 07.85.Nc; 95.55.Ka Keywords: Si(Li) detectors, X-ray spectrometers, X-ray fluorescence, detector calibration, gold electrodes, synchrotron radiationComment: 10 pages, 4 PostScript figures, uses elsart.sty, submitted to Nucl. Instrum. Meth.

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State-of-the-art efficiency determination for a Si(Li) X-ray detector in the 3–40 keV energy range

Cited by 77 publications

References 37 publications

Light yield of cold undoped CsI crystal down to 13 keV and the application of such crystals in neutrino detection

Light yield of cold undoped CsI crystal down to 13 keV and the application of such crystals in neutrino detection

Role of the mass attenuation coefficient database in standardization of a silicon drift X‐ray detector for PIXE analysis

Electrode thickness measurement of a Si(Li) detector for the SIXA array

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