التفاصيل البيبلوغرافية
| العنوان: |
(Lu-Y)AlO3 :Ce Scintillator for Well Logging. |
| المؤلفون: |
Baberdin, A., Dutova, A., Fedorov, A., Korzhik, M., Ligoun, V., Missevitch, O., Kazak, V., Vinokurov, A., Zagumenov, S. |
| المصدر: |
IEEE Transactions on Nuclear Science; Jun2008 Part 2, Vol. 55 Issue 3, p1170-1173, 4p, 1 Chart, 9 Graphs |
| مصطلحات موضوعية: |
PEROVSKITE, SCINTILLATORS, DOPED semiconductors, CRYSTALS, YTTRIUM, DIAGNOSTIC imaging |
| مستخلص: |
Lutetium Yttrium Perovskite — (Lux - Y1-x)AlO3: Ce, LuYAP:Ce — is a cerium doped scintillation crystal that offers high light yield and high density. LuYAP:Ce with 70% lutetium content in (Lu-Y) system has been applied for medical imaging. Recently volume crystals with good transparency in the spectral range of scintillation have been obtained. It made possible detailed test of the material for well logging application. A unique combination of the parameters: high stopping power, fast and bright scintillation, light yield increase at high temperature makes them attractive for γ-ray detection in a wide range of temperatures. Evaluation performance test of (Lu0.7-Y0.3)AlO3:Ce scintillation crystal detector and widely used NaI(Tl), BGO and GSO crystal based detectors of the same size Ø 18 × 60 mm³ has been performed. All crystals were assembled in aluminium case with light reflective material and attached to a high temperature PMTs. It was found that (Lu0.7 - Y0.3)AlO3:Ce based detector exhibits the most impressive set of operational characteristics: highest detection efficiency in integral and spectrometric γ and n-γ well logging, excellent stability of the detector response with clear tendency to increase with temperature raise, stable signal-to-noise ratio in the temperature range 25°C-175°C and high resistance to neutron activation. Shock and vibration tests also showed good mechanical stability of the material. Details of the tests and forthcoming application of the scintillator in well-logging are discussed. [ABSTRACT FROM AUTHOR] |
|
Copyright of IEEE Transactions on Nuclear Science is the property of IEEE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder