Efficiency calibration of HPGe detector in far and close geometries

Aksoy, A.

doi:10.1007/bf02043003

Cited by 13 publications

(7 citation statements)

References 7 publications

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“…(6). Put the TCS correction factors, emission probabilities of the corresponding c-rays and the calculated results of decay correction during the measurement into the activity equation and then divide the result by the sample mass to obtain the activity concentrations of 88 Kr and 88 Rb in the primary coolant sample of the PWR (Table 9).…”

Section: Validation Of the Calibration Resultsmentioning

confidence: 99%

“…Many researchers have studied the efficiency calibration of HPGe detectors [3][4][5][6], but most of them focus on efficiency calibration when the energy is below 1460 keV. For the efficiency calibration of c-rays with energies above 1460 keV, Monte Carlo simulation (MCS) is often applied [7][8][9]; however, the necessary experimental verifications are lacking.…”

Section: Introductionmentioning

confidence: 99%

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Efficiency calibration of a HPGe detector for the measurement of the primary coolant

Qin

Liu

et al. 2016

J Radioanal Nucl Chem

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This paper describes a method of calibrating the efficiency of a Ge c-ray spectrometer. 226 Ra and 232 Th were selected to produce the soil calibration source, and then several c-rays with high emission probabilities in 226 Ra's decay products and 232 Th's decay products, along with 2754 keV c-rays of 24 Na in the primary coolant sample of PWR, were employed to perform efficiency calibration. After self-absorption correction and true coincidence summing correction, we obtained the efficiency curve of a U70 9 30 mm aqueous calibration source over the high energy range (1120-2754 keV).

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Section: Validation Of the Calibration Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficiency calibration of a HPGe detector for the measurement of the primary coolant

Qin

Liu

et al. 2016

J Radioanal Nucl Chem

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“…The two detectors used in this study were the Ortec models HPGe-50 and HPGe-20, which have relative efficiencies of 50 and 20%, respectively. The detector used in our previous study [9] also had a relative efficiency of 20%, but it was a Tennelec model with different crystal dimensions, which are listed in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous study, the FEPE of a HPGe-20 Tennelec model detector for both close and far geometries was measured [9]. However, the data fitting was done using three separate groups of linear polynomial functions.…”

Section: Methodsmentioning

confidence: 99%

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Efficiency Inter-Comparison Measurements of Medium and Large Volume HPGe Detectors in Far and Close Geometries

Aksoy

2011

Arab J Sci Eng

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Inter-comparisons of the absolute full-energy peak efficiencies of two high-purity-germanium (HPGe-50 and HPGe-20) Ortec-model photon detectors were carried out with efficiencies previously measured from a HPGe-20 Tennelec detector in the energy range from 40 to 1,500 keV. The functional parameters are fitted to calibration points from 11 long-lived standard sources ( 129 I, 241 Am, 109 Cd, 57 Co, 137 Cs, 60 Co, 22 Na, 133 Ba, 152 Eu, 154 Eu and 166 Ho) to an accuracy better than the quoted uncertainties of the calibration sources. The efficiencies in far and close geometries for both detectors are compared.

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Efficiency calibration of energy‐dispersive detectors for application in quantitative x‐ and γ‐ray spectrometry

Szalóki¹,

Szegedi²,

Varga³

et al. 2001

X-Ray Spectrometry

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A semi‐empirical method was used in a full‐peak efficiency calculation procedure; it was based on the measurements of characteristic x‐ray lines of pure elemental and compound samples and on the application of the fundamental parameter method (FPM) for the theoretical calculation of the characteristic x‐ray intensities. Radioactive standards were applied for the efficiency calibration of different semiconductor detectors [Si(Li), Si‐PIN and HpGe]. The efficiency curves were fitted to the characteristic intensities measured by a conventional Si(Li) and two Si‐PIN detectors, using 125I and 55Fe radioactive sources for x‐ray excitation in a ring‐shaped geometrical arrangement. Several quantitative applications in x‐ and γ‐ray spectrometry were carried out with these calibrated detectors: (i) x‐ray fluorescence (XRF) analysis of sediment samples [Si(Li)], (ii) determination of specific activity of 137Cs nuclide in sediment core samples originated from an oxbow area of the river Tisza, using γ‐spectroscopy (HpGe) with low‐background conditions, (iii) study of electrosorption phenomena at solid– liquid interfaces by making use of an in situ radiotracer method based on the application of low‐energy x‐ray emitting radionuclides (e.g. 65Zn), (iv) quantitative XRF analysis of ceramic glaze and (v) electron microprobe analysis of aerosol particles using an instrument equipped with a thin‐window Si(Li) detector. Copyright © 2001 John Wiley & Sons, Ltd.

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Efficiency calibration of HPGe detector in far and close geometries

Cited by 13 publications

References 7 publications

Efficiency calibration of a HPGe detector for the measurement of the primary coolant

Efficiency calibration of a HPGe detector for the measurement of the primary coolant

Efficiency Inter-Comparison Measurements of Medium and Large Volume HPGe Detectors in Far and Close Geometries

Efficiency calibration of energy‐dispersive detectors for application in quantitative x‐ and γ‐ray spectrometry

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