PMO OpenIR  > 空间目标与碎片观测研究基地
利用Jacobi多项式计算倾角函数
吴连大 ; 汪宏波
2013
Source Publication天文学报
ISSN0001-5245
Volume54Issue:2Pages:49-61
Other AbstractDetection of high-energy neutrinos from distant astrophysical sources will open a new window on the Universe. The detection principle exploits the measurement of Cherenkov light emitted by charged particles resulting from neutrino interactions in the matter containing the telescope. A novel multi-PMT digital optical module (DOM) was developed to contain 31 3-inch photomultiplier tubes (PMTs). In order to maximize the detector sensitivity, each PMT will be surrounded by an expansion cone which collects photons that would otherwise miss the photocathode. Results for various angles of incidence with respect to the PMT surface indicate an increase in collection efficiency by 30% on average for angles up to 45 with respect to the perpendicular. Ray-tracing calculations could reproduce the measurements, allowing to estimate an increase in the overall photocathode sensitivity, integrated over all angles of incidence, by 27% (for a single PMT). Prototype DOMs, being built by the KM3NeT consortium, will be equipped with these expansion cones. 2013 IOP Publishing Ltd and Sissa Medialab srl.
Subject AreaPhysics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9808
Collection空间目标与碎片观测研究基地
Recommended Citation
GB/T 7714
吴连大,汪宏波. 利用Jacobi多项式计算倾角函数[J]. 天文学报,2013,54(2):49-61.
APA 吴连大,&汪宏波.(2013).利用Jacobi多项式计算倾角函数.天文学报,54(2),49-61.
MLA 吴连大,et al."利用Jacobi多项式计算倾角函数".天文学报 54.2(2013):49-61.
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