التفاصيل البيبلوغرافية
| العنوان: |
Timing property of undoped BaCl2 single crystal scintillator. |
| المؤلفون: |
Koshimizu, Masanori1, Onodera, Kazuya1, Shibuya, Kengo2, Saito, Haruo3, Asai, Keisuke1 |
| المصدر: |
Journal of Applied Physics. Jun2009, Vol. 105 Issue 11, p114912-1-114912-6. 6p. 3 Diagrams, 1 Chart, 7 Graphs. |
| مصطلحات موضوعية: |
*SCINTILLATORS, *BARIUM compounds, *CHLORINE compounds, *EXCITON theory, *PHOTOELECTRONS, *FLUORINE compounds, *PHOTOCATHODES |
| مستخلص: |
Scintillation characteristics of undoped BaCl2, a novel fast scintillation material, were investigated. Scintillation photons with wavelength ranging from 250–600 nm were observed with two luminescence bands at 300 and 400 nm. The scintillation time profiles consisted of two lifetime components. The shorter component had a lifetime of 1.6 ns, while the longer one had a lifetime of several tens of nanoseconds. The origin of the fast component has been attributed to self-trapped excitons, whereas the slow component is considered to be an extrinsic luminescence. The photoelectron yield of the fast component of BaCl2 coupled to a bialkali photocathode was comparable to that of BaF2. This shows that BaCl2 is a promising scintillation material that can be used for measurements at a high counting rate or with an excellent timing property. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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