SGER: A New Approach to Space Debris Elimination

建议编号：ECS-0741616建议标题：SGER：一种新的空间碎片清除方法国际名称：Suckeyer，SzymonPI研究所：普林斯顿大学目标该项目的主要目标是通过计算机模拟调查清除小碎片的最有效方法，并为在空间清除小碎片的大型项目奠定基础。智能优点PI将结合普林斯顿大学目前可用的计算机算法，对激光光束与碎片的相互作用进行建模。这项研究将集中在利用超短和极高强度的激光脉冲以及强大的光纤激光的长脉冲对空间碎片产生推力的计算机计算。宽带影响1997年，空军建立了猎户座项目，以评估通过从地面向单个碎片发射激光来消除空间中小尺寸碎片(10厘米)的可能性。这种碎片对于导航设备来说是“看不见的”，在与它们相撞的过程中可能会对航天器造成灾难性的影响。所需的激光能量估计在20kJ/脉冲的范围内，光束发散度极低(~1urad)，以便激光在距离地球约1000公里处的碎片上提供足够的强度。该项目将研究如何使用在太空轨道上运行的激光来消除微小碎片，方法是将它们从轨道上“踢开”到较低的轨道上，以便碎片在大气中燃烧。它将包括比较低能量超短脉冲激光和最近开发的高功率光纤激光清除碎片的效率的研究。PI还将调查与地面激光相比，使用空间激光的优势。

AbstractProposal Number: ECS-0741616Proposal Title: SGER: A New Approach to Space Debris ElininationPI Name: Suckewer, SzymonPI Institution: Princeton University ObjectiveThe main objective of this project is to investigate, by computer simulations, the most efficient way to remove small debris and to prepare the basis for a large project on small debris removal in space. Intellectual MeritThe PI will combine computer algorithms currently available at Princeton in order to model the laser beam-debris interaction. The research will concentrate on computer calculations of generation thrust on debris in space by ultra-short and very high intensity laser pulses and long pulses of powerful fiber laser.Broader ImpactsIn 1997 the Project ORION was established by Air Force to assess the possibility of eliminating small size debris ( 10 cm) from space, by shooting a laser beam from the ground at individual debris. Such debris, being "invisible" for navigation devices, may be catastrophic for space vehicles during collision with them. The required laser beam energy was estimated to be in the range of 20 kJ per pulse with extremely low beam divergence (~ 1urad) in order for laser beam to provide adequate intensity on debris at distance ~ 1000 km from the Earth. This project will investigate the use of lasers orbiting in space to eliminate small debris by "kicking them off" of their orbits into lower orbits for the debris to burn up in the atmosphere. It will include research on comparing the efficiency of low energy ultrashort pulse laser and recently developed high power fiber laser for debris elimination. The PI will also investigate the advantages of using lasers located in space in comparison with ground base lasers.