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van allen n.范阿倫(姓氏)。

van doren

At present , the solar cells used on space aircrafts are still mainly si and gaas solar cells . however , the radiation resistance ability of these two materials is poor . since the photoelectric conversion efficiency attenuates rapidly with the radiation , the lifetime of si and gaas solar cells is short and their stability is not satisfied for space applications at van allen belt 目前國內外用于航天器上的太陽電池主要為si和gaas太陽電池,但這兩種材料的抗輻射能力較差,其光電轉換效率由于高空輻射衰減很快,因而壽命短,穩定性差,不能滿足用于vanallen強輻射帶的空間應用需要。

While the magnetic field on the earth ( which traps charged particles encircling the earth into radiation belts called the van allen belts ) normally protects our planet from the solar wind , it may be deformed in the event of violent solar wind , resulting in a geomagnetic storm on earth 雖然地球上的磁場能將環繞地球的帶電荷粒子困于其輻射帶( vanallenbelts ) ,一般能有效阻擋太陽風,但在猛烈太陽風情況下它可能受影響而變形,導致地磁暴的出現。

While the magnetic field on the earth which traps charged particles encircling the earth into radiation belts called the van allen belts normally protects our planet from the solar wind , it may be deformed in the event of violent solar wind , resulting in a geomagnetic storm on earth 雖然地球上的磁場能將環繞地球的帶電荷粒子困于其輻射帶van allen belts ,一般能有效阻擋太陽風,但在猛烈太陽風情況下它可能受影響而變形,導致地磁暴的出現。

However , there exist the so - called van allen radiation belts at this hight . the solar cells would work there for only several days , even for ‘ radiation hardness ’ si solar cells 但是,在這個軌道高度上存在所謂vanallen輻射帶,在這里即使是“抗輻射”的si太陽電池也只能正常工作幾天時間。

Of all the discoveries of the outer atmosphere made possible by rockets and satellites , few equal in lmportance the revelation of the high radiation belts by van allen in 1958 譯為:在所有借助火箭和衛星才能獲得的對外層大氣的發現中,在重要性方面很少能與范艾倫1958年發現高層輻射帶相比。

For this reason , extreme radiation hardness and high power / weight ratio solar cells , which can work properly in van allen belts , must be developed 因此,為了能使通信衛星在vanallen輻射帶正常工作,必須要有一種強抗輻射并且具有較高重量比功率的太陽電池。

Van allen belts 范艾倫帶

Van allen belt 范艾倫輻射帶

Van allen radiation belt 范艾倫輻射帶