CAREER: Developing Antenna-Coupled Kinetic Inductance Detectors to Enable Next Generation CMB Experiments

职业：开发天线耦合动感电感探测器以实现下一代 CMB 实验

• 批准号: 1554565
• 负责人: Erik Shirokoff
• 金额: $ 87.17万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1554565&HistoricalAwards=false
• 关键词: CAREER; Developing; Antenna; Coupled; Kinetic

The team will design, build and demonstrate arrays of Kinetic Inductance Detectors (KIDs). A KID contains a very cold, resistance-free device. That device changes its properties when it "sees" the Cosmic Microwave Background (CMB), the faint signal from the young Universe. Vast arrays of KIDs are needed for the next generation of CMB experiments. The team will also provide laboratory experience for undergraduates from underrepresented minorities and for high school students in the Chicago area.The team's goals are: (1) Fabricate single-layer resonators to characterize film properties, measure the intrinsic noise level, and verify sensitivity scaling laws. (2) Couple the resonators to a simple antenna, to measure the response and dielectric
 losses at millimeter wavelengths and to verify full coverage of the CMB atmospheric windows. (3) Test single-pixel multi-channel detectors coupled to wide-band log-periodic antennas, to verify background-limited operation under realistic conditions. (4) Conduct end-to-end laboratory tests of a demonstration KID array of about 2000 pixels. Future CMB experiments using KID arrays with millions of pixels will (a) precisely measure the number of neutrino species and the neutrino mass summed over those species, missing - but vital - information for testing theories of particle physics; and (b) dramatically improve searches for the primordial gravitational B-mode polarization that would prove that the Universe underwent the cosmic inflation posited by theorists.

该团队将设计，构建和演示各种动力学电感探测器（儿童）。一个孩子包含一个非常冷的，无电的设备。当它“看到”宇宙微波背景（CMB）时，该设备会更改其性质，这是年轻宇宙的微弱信号。下一代CMB实验需要大量的孩子。该团队还将为来自代表性不足的少数民族和芝加哥地区的高中生的本科生提供实验室经验。该团队的目标是：（1）制造单层谐振器来表征电影属性，衡量内在的噪音水平，并验证敏感性缩放定律。 （2）将谐振器与简单的天线相结合，以测量响应和介电＆＃8232;毫米波长的损失，并验证CMB大气窗的全面覆盖范围。 （3）测试与宽频段对数周期天线耦合的单像素多通道检测器，以在逼真的条件下验证背景受限的操作。 （4）进行大约2000像素的示范儿童阵列进行端到端的实验室测试。使用具有数百万像素的KID阵列的未来CMB实验将（a）精确地测量中微子物种的数量和中微子的数量，而中微子质量概括了这些物种，但缺少但至关重要的是测试粒子物理学理论的信息； （b）显着改善了对原始引力B模式极化的搜索，这将证明宇宙经历了理论家提出的宇宙通胀。