Testing of the UV discharge system for LISA Pathfinder
Testing of the UV discharge system for LISA Pathfinder
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DOI：
10.1063/1.2405047
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发表时间：
2006-12
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通讯作者：
P. Wass;L. Carbone;A. Cavalleri;G. Ciani;R. Dolesi;M. Hueller;G. Rochester;M. Schulte;T. Sumner;D. Tombolato;C. Trenkel;S. Vitale;W. Weber
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文献类型：
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作者：
P. Wass;L. Carbone;A. Cavalleri;G. Ciani;R. Dolesi;M. Hueller;G. Rochester;M. Schulte;T. Sumner;D. Tombolato;C. Trenkel;S. Vitale;W. Weber
我们提供的测试结果证明了丽莎和丽莎Pathfinder测试质量排放系统的功能和性能。在太空中，丽莎和丽莎探路者测试质量将从高能带电粒子中积累电荷。利用光电效应，紫外线（UV）照明系统将使试验物质放电。该紫外线放电系统与特伦托大学扭摆装置中的丽莎Pathfinder工程模型传感器集成在一起，其测试结果表明：使用紫外线可以使隔离的测试物质带正电或负电;充电速率可以测量，并且与紫外线功率成正比;测试块电荷可以通过照射测试块和周围传感器外壳的光的组合而连续地保持接近零，而不引入超过摆检测极限的过量力噪声。
We present the results of tests that demonstrate the functionality and performance of the test‐mass discharge system for LISA and LISA Pathfinder. In space, the LISA and LISA Pathfinder test‐masses will accumulate charge from energetic charged particles. Using the photoelectric effect, a system of ultra‐violet (UV) illumination will discharge the test masses. Testing of this UV discharge system, integrated with the LISA Pathfinder engineering model sensor in the torsion pendulum facility at the University of Trento has shown that: isolated test‐masses can be charged positively or negatively using UV light; the rate of charging can be measured and is proportional to the UV power; the test‐mass charge can be continuously held near zero with a combination of light illuminating the test mass and the surrounding sensor housing, without introducing excess force noise above the pendulum detection limit.