CERIUM-DOPED LUTETIUM OXYORTHOSILICATE - A FAST, EFFICIENT NEW SCINTILLATOR
CERIUM-DOPED LUTETIUM OXYORTHOSILICATE - A FAST, EFFICIENT NEW SCINTILLATOR
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DOI：
10.1109/23.159655
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发表时间：
1992-08-01
影响因子：
1.8
通讯作者：
SCHWEITZER, JS
中科院分区：
文献类型：
--
作者：
MELCHER, CL;SCHWEITZER, JS
我们最近发现了一种新的单晶无机闪烁体，掺Ce的氧硅酸锂(LU2(1-x)Ce2x(SiO4)O或“LSO”)，它比现有的闪烁体具有许多优点1。它的闪烁发射强度约为NaI(Tl)的75%，衰减时间约为40 ns。峰值发射波长为420 nm。由于其密度为7.4g/cm~3，有效原子序数为66，因此具有非常高的伽马射线探测效率。它的辐射长度为1.14厘米，仅略长于BGO(1.12厘米)。由于其高发射强度、高发射速度、高密度和高原子序数的独特组合，LSO在医学成像、高能物理实验和地球物理探测等领域具有广泛的应用前景。
We have recently discovered a new single crystal inorganic scintillator, cerium-doped lutetium oxyorthosilicate (Lu2(1-x)Ce2x(SiO4)O or "LSO"), which has a number of advantages over existing scintillators.1 It has a scintillation emission intensity which is approximately 75% of NaI(Tl) with a decay time of approximately 40 ns. The peak emission wavelength is 420 nm. It has a very high gamma-ray detection efficiency due to its density of 7.4 g/cm3 and its effective atomic number of 66. Its radiation length of 1.14 cm is only slightly longer than BGO (1.12 cm). Due to its unique combination of high emission intensity, speed, and high density and atomic number, LSO appears to be an attractive candidate for diverse applications including medical imaging, high energy physics experiments, and geophysical exploration.