Calculation of thermal radiation input via funneling through a duct shield with baffles for KAGRA
Calculation of thermal radiation input via funneling through a duct shield with baffles for KAGRA
复制标题
通过 KAGRA 带有挡板的管道屏蔽漏斗计算热辐射输入
DOI：
10.1088/0264-9381/29/20/205019
复制
发表时间：
2012
影响因子：
3.5
通讯作者：
K. Kuroda
中科院分区：
文献类型：
--
作者：
Y. Sakakibara;N. Kimura;Kazuhiro Yamamoto;Toshikazu Suzuki;T. Tomaru;S. Miyoki;T. Uchiyama;K. Kuroda
目前世界范围内的许多研究正在开发用于探测引力波的干涉方法，并且这种方法中的挑战之一是充分冷却干涉探测器中的反射镜以减少热噪声。虽然反射镜被辐射屏蔽所包围，但屏蔽中的孔是允许激光束通过所必需的。为了减少由于孔洞的存在而引起的热辐射，我们将安装带有挡板的管道屏蔽。为了计算通过管道屏蔽的热量输入，我们应用了射线跟踪模型，其结果与无挡板的实验结果一致。作为该模型的应用，计算了KAGRA（日本低温引力波探测器项目）的热输入。我们的分析表明，在管道屏蔽挡板可以大大减少在KAGRA热输入。
Many studies worldwide are currently developing interferometric methods for detecting gravitational waves and one of the challenges in such methods has been to sufficiently cool the mirror in interferometric detectors in order to reduce thermal noise. Although the mirror is surrounded by a radiation shield, a hole in the shield is necessary to allow the laser beam to pass. To reduce the thermal radiation caused by the presence of the hole, we will install a duct shield with baffles. To calculate the heat input through the duct shield, we applied a ray trace model whose results were consistent with those of an experiment without baffles. As an application of our model, the heat input in the case of KAGRA (a Japanese cryogenic gravitational wave detector project) was calculated. Our analysis suggests that baffles in the duct shield can considerably reduce the heat input in KAGRA.
减少 LCGT 低温恒温器的热负荷
DOI：
--
发表时间：
2008
期刊：
J. Phys. Conf. Ser. 122
影响因子：
--
作者：
T. Tomaru;et al.
通讯作者：
et al.