【摘要】 太阳爆发探测小卫星(SMall Explorer for Solar Eruptions,简称SMESE)是中国法国合作小卫星.SMESE计划在下一个太阳活动峰年(—2011年)发射上天,同时观测太阳上两类最剧烈爆发现象:耀斑和日冕物质抛射(CME),瞄准当代科学的前沿课题,同时兼顾空间天气学的应用需要.高能暴谱仪(High Energy Burst Spectrometer,简称HEBS)是太阳爆发探测小卫星上3大主要载荷之一,采用世界最新高能量分辨LaBr3闪烁探测器,观测太阳10 keV—600 MeV的高能辐射.其能量分辨优于3.0%@662 keV,高于目前通用闪烁探测器的2倍以上,可望在耀斑和CMEs的能量释放,粒子加速,以及耀斑和CMEs之间的关系研究方面取得突破.更多还原

【Abstract】 Small Exploration for Solar Eruptions（SMESE）is a joint mission between France and China to investigate the two main types of eruption events on the Sun:Coronal Mass Ejections（CME）and solar flares,and their relationship.SMESE will be launched around 2011,providing a unique opportunity of detecting and under- standing eruptions at the maximum activity phase of the solar cycle in a wide range of energies.The payload consists of three instrument packages:LYOT（a suit of twoUV and EUV imagers and a Lyman coronagraph）,DESIR(an Infra-Red Telescope working at 35 and 150μand HEBS（High Energy Burst Spectrometer）. HEBS aims at observing hard X-ray and gamma-ray emissions from the energetic e- ruptions on the Sun like solar flares.HEBS consists of three 3 inch diameter by 3 inch long cylinder of LaBr₃ scintillator placed within a well shaped plastics scintillator antico- incidence shield.It covers energy range from 10 keV to 600 MeV.The energy resolu- tion at 662 keV of HEBS has been measured to be 3.5% full width at half-maximum （FWHM）at room temperature.Such high energy resolution has not been achieved with any of the established inorganic scintillators.更多还原