功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2009年
11期
1770-1772
,共3页
朱永昌%高祀建%欧阳世翕%腾伟峰
硃永昌%高祀建%歐暘世翕%騰偉峰
주영창%고사건%구양세흡%등위봉
锂-6%硼-10%玻璃闪烁体%Ce~(3+)%温度效应
鋰-6%硼-10%玻璃閃爍體%Ce~(3+)%溫度效應
리-6%붕-10%파리섬삭체%Ce~(3+)%온도효응
lithium-6%boron-10%glass scintillator%Ce~(3+)%temperature effect
选取Ce~(3+)为激活剂离子,锂-6和硼-10为靶核核素分别研制了可用于热中子探测的玻璃闪烁体,并系统研究了其发光性能及部分核物理性能.研究结果表明,Ce~(3+)激活的锂-6玻璃闪烁体具有较长的发射波长(390nm),较短的衰减时间(46.9ns)以及良好的γ射线甄别性能和温度效应,是探测热中子优良的玻璃基质材料.靶核核素与激活剂离子在锂-6玻璃闪烁体中均有一较佳的浓度范围,浓度过大将产生不同程度的淬灭效应.
選取Ce~(3+)為激活劑離子,鋰-6和硼-10為靶覈覈素分彆研製瞭可用于熱中子探測的玻璃閃爍體,併繫統研究瞭其髮光性能及部分覈物理性能.研究結果錶明,Ce~(3+)激活的鋰-6玻璃閃爍體具有較長的髮射波長(390nm),較短的衰減時間(46.9ns)以及良好的γ射線甄彆性能和溫度效應,是探測熱中子優良的玻璃基質材料.靶覈覈素與激活劑離子在鋰-6玻璃閃爍體中均有一較佳的濃度範圍,濃度過大將產生不同程度的淬滅效應.
선취Ce~(3+)위격활제리자,리-6화붕-10위파핵핵소분별연제료가용우열중자탐측적파리섬삭체,병계통연구료기발광성능급부분핵물이성능.연구결과표명,Ce~(3+)격활적리-6파리섬삭체구유교장적발사파장(390nm),교단적쇠감시간(46.9ns)이급량호적γ사선견별성능화온도효응,시탐측열중자우량적파리기질재료.파핵핵소여격활제리자재리-6파리섬삭체중균유일교가적농도범위,농도과대장산생불동정도적쉬멸효응.
Activator ion Ce~(3+) ,target nuclide lithium-6 and boron-10 are selected to produce glass scintillator respectively that can be used for thermal neutron detection,and its light-emitting property and some nuclear physics performance are also systematically studied. The study shows that lithium-6 glass scintillator activated by Ce~(3+) is a kind of glass matrix material for detection of the thermal neutron excellence, with a longer emission wavelength (390nm),a shorter lifetime (46. 9ns) and good γ-ray screening performance and temperature effect. Both of the nuclear target nuclide and activator ion in the lithium -6 glass scintillator have a maximum allowable concentration,higher than which can produce varying degrees of concentration quenching effect.
