Measurement of Kβ/Kα intensity ratios for elements in the range 22⩽<i>Z</i>⩽69 at 59.5 keV

Ertuğrul, Mehmet; Söğüt, Ömer; Şimşek, Önder; Büyükkasap, Erdoğan

doi:10.1088/0953-4075/34/5/316

Cited by 62 publications

(27 citation statements)

References 28 publications

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“…The agreement between the present experimental results and theoretical values (calculated and Scoeld) predictions are within range 13%, 110%, 17% for Cu, Zn and Se, respectively. In addition to this, the experimental values agree to within range 37%, 117% and 215% experimental values of Ertu §rul et al [44], Hansen et al [45] and Khan and Karimi [46], respectively.…”

Section: Resultssupporting

confidence: 86%

Investigation on Zinc Selenide and Copper Selenide Thin Films Produced by Chemical Bath Deposition

et al. 2013

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The zinc selenide and copper selenide thin lms were deposited by chemical deposition technique on glass substrates. For both lms, sodium selenosulphate was used as a selenide ion source in an alkaline solution. The X-ray diraction patterns show that the ZnSe has a cubic structure and Cu3Se2 lm has a tetragonal structure. The relative intensity K β /Kα of zinc and copper selenide thin lms has been measured by using a 241 Am radioisotope source (75 mCi). The obtained results were compared with the theoretical values.

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Section: Resultssupporting

confidence: 86%

Investigation on Zinc Selenide and Copper Selenide Thin Films Produced by Chemical Bath Deposition

et al. 2013

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“…A 50 W silver (Ag) anode x-ray tube operated at an acceleration voltage of up to 47 kV. The K α and K β lines of silver are at 22.16 and 24.94 keV, respectively, with a K β /K α ratio of 0.217 [20]. A filter of 1 mm aluminum was optionally used to attenuate low energy x-rays.…”

Section: Radiation Sourcesmentioning

confidence: 99%

Characterization of CdTe sensors with Schottky contacts coupled to charge-integrating pixel array detectors for X-ray science

et al. 2016

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Pixel Array Detectors (PADs) consist of an x-ray sensor layer bonded pixel-bypixel to an underlying readout chip. This approach allows both the sensor and the custom pixel electronics to be tailored independently to best match the x-ray imaging requirements. Here we present characterizations of CdTe sensors hybridized with two different chargeintegrating readout chips, the Keck PAD and the Mixed-Mode PAD (MM-PAD), both developed previously in our laboratory. The charge-integrating architecture of each of these PADs extends the instantaneous counting rate by many orders of magnitude beyond that obtainable with photon counting architectures. The Keck PAD chip consists of rapid, 8-frame, in-pixel storage elements with framing periods <150 ns. The second detector, the MM-PAD, has an extended dynamic range by utilizing an in-pixel overflow counter coupled with charge removal circuitry activated at each overflow. This allows the recording of signals from the single-photon level to tens of millions of x-rays/pixel/frame while framing at 1 kHz. Both detector chips consist of a 128×128 pixel array with (150 µm) 2 pixels.

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“…The measured K ␤ to K ␣ intensity ratios of silver and tellurium are 7.9% and 19.1%, respectively, higher than the theoretical values of Scofield [17]. The reason for this significant deviation may be attributed to the recoil effect experienced [20] 0.120±0.010 [25] 0.1203 [21] 0.133±0.011 [26] 0.135 [22] 0.1160±0.0023 [2] 0.134 [23] 0.1210±0.0024* [2] 0.133 [4] 0.128* [4] 0.135±0.002 [6] 0.129±0.002* [6] 0.1283±0.0025* [7] Silver (Z = 47) 0.212±0.003 0.212 [27] 0.214±0.022 [28] 0.1964 [17] 0.1964±0.004 [29] 0.213 [20] 0.198±0.003 [30] 0.1944 [21] 0.2096±0.004 [24] 0.217±0.015 [26] 0.2110±0.0042* [7] Tellurium (Z = 52) 0.254±0.006 0.2132 [17] 0.2194±0.008 [24] 0.2119 [21] 0.230±0.018 [26] 0.225 [22] 0.2300±0.0046* [7] 0.226 [23] *Following EC decay process. by the nucleus due to neutrino emission during EC decay [18].…”

Section: Resultsmentioning

confidence: 72%

K shell X-ray intensity ratios and vacancy transfer probabilities of Fe, Ag, and Te following electron capture decay

GeorgeLinu

JosephDaisy

2014

Can. J. Phys.

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The K shell X-ray photons of Fe, Ag, and Te following the electron capture decay of Co 57 , Cd 109 , and I 125 , respectively, were detected using Si(Li) detector coupled to PC-based 8k multichannel analyzer employing a simple method suggested earlier by our group. The calculated K shell X-ray intensity ratios and vacancy transfer probabilities for these elements are compared with the theoretical values predicted by Scofield and with others' experimental values obtained via photoionization. It is found that the ⌲ ␤ to ⌲ ␣ X-ray intensity ratio of Fe is lower by 4.0%, while that of Ag and Te are greater by 7.9% and 19.1%, respectively, from the theoretical values. These deviations may be attributed to the exchange interactions occurring between the 3p-3d shell electrons as well as the recoil effect of the nucleus due to neutrino emission. PACS Nos.: 32.30.Rj, 32.80.Fb, 78.70.En. Résumé :Les photons X de la couche K dans le Fe, l'Ag et le Te, suivant la capture électronique par le Co 57 , le Cd 109 et l'I 125 sont détectés ici par des détecteurs Si(Li) couplés à un analyseur multicanaux 8k qui emploie une méthode simple proposée plus tôt par notre groupe. Nous comparons les rapports d'intensité des rayons X de la couche K et les probabilités de transfert de lacunes, avec les valeurs théoriques de Scofield et avec d'autres résultats expérimentaux obtenus de la photo-ionisation. Nous trouvons que le rapport d'intensité K ␤ sur K ␣ dans le Fe est 4% plus faible que la valeur théorique, alors qu'il est plus élevé de 7,9 % et 19,1 % dans l'Ag et le Te, respectivement. Ces déviations peuvent être attribuées aux interactions d'échange dans les couches électro-niques 3p-3d, ainsi qu'aux effets de recul du noyau suite à l'émission du neutrino. [Traduit par la Rédaction]

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Measurement of Kβ/Kα intensity ratios for elements in the range 22⩽Z⩽69 at 59.5 keV

Cited by 62 publications

References 28 publications

Investigation on Zinc Selenide and Copper Selenide Thin Films Produced by Chemical Bath Deposition

Investigation on Zinc Selenide and Copper Selenide Thin Films Produced by Chemical Bath Deposition

Characterization of CdTe sensors with Schottky contacts coupled to charge-integrating pixel array detectors for X-ray science

K shell X-ray intensity ratios and vacancy transfer probabilities of Fe, Ag, and Te following electron capture decay

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