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Balloon-borne heterodyne stratospheric limb sounder TELIS ready for flight

机译:气球式外差平流层肢体测深仪TELIS准备飞行

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TELIS (TErahertz and submm LImb Sounder) is a three-channel balloon-borne heterodyne spectrometer for atmospheric research. The observational techniques of TELIS can be compared to the presently flying MLS instrument on board NASA's EOS-Aura satellite, but TELIS is built with a new generation of cryogenic heterodyne detectors and novel compact systems suitable for integration into the confined space of a balloon borne cryostat. TELIS will fly on the MIPAS-B2 gondola. The two instruments together will yield the most complete set of stratospheric constituents, measured so far. TELIS is a cooperation between the European institutes DLR (Pi-institute), RAL and SRON. First flight foreseen in the spring of 2008 from Teresina, Brasil. The three TELIS receivers provide simultaneous vertical profile measurement of a range of molecules. The 500 GHz channel is developed by RAL and will produce vertical profiles of BrO, ClO, O_3 and N_2O. The 1.8 THz channel is developed by DLR and will mainly target the OH radical, and will also measure HO_2, HCl, NO, NO_2, O_3, H_2O, O_2 and HOCl. Finally the 480 - 650 GHz channel is developed by SRON and IREE and will measure profiles of ClO, BrO, O_3, HCl, HOCl, H_2O and its 3 isotopomers, H_2O_2, NO, N_2O, HNO_3, CH_3Cl and HCN.In this paper, the science and technology of TELIS will be discussed with emphasis on the channel developed by SRON. It contains a Superconducting Integrated Receiver (SIR), which combines on a 4 × 4 mm~2 chip the low-noise SIS mixer and its quasioptical antenna, a superconducting phase-locked Flux Flow Oscillator (FFO) acting as Local Oscillator (LO) and a SIS harmonic mixer (HM) for FFO phase locking. The latest results from the pre-flight test and integration campaigns will be presented.
机译:TELIS(TErahertz和Submm LImb Sounder)是一种用于大气研究的三通道球囊外差光谱仪。可以将TELIS的观测技术与NASA的EOS-Aura卫星上目前飞行的MLS仪器进行比较,但是TELIS配备了新一代的低温外差探测器和新颖的紧凑系统,适合集成到气球式低温恒温器的密闭空间中。 TELIS将乘坐MIPAS-B2吊船飞行。到目前为止,这两种仪器将产生最完整的平流层成分。 TELIS是欧洲DLR(Pi研究所),RAL和SRON机构之间的合作。预计将于2008年春季从巴西的特雷西纳(Teresina)进行首飞。三个TELIS接收器可同时测量一系列分子的垂直轮廓。 500 GHz信道由RAL开发,将产生BrO,ClO,O_3和N_2O的垂直剖面。 1.8 THz通道由DLR开发,将主要针对OH自由基,还将测量HO_2,HCl,NO,NO_2,O_3,H_2O,O_2和HOCl。最终,SRON和IREE开发了480-650 GHz信道,并将测量ClO,BrO,O_3,HCl,HOCl,H_2O及其3种异构体H_2O_2,NO,N_2O,HNO_3,CH_3Cl和HCN的谱图。 TELIS的科学技术将重点讨论SRON开发的渠道。它包含一个超导集成接收器(SIR),该器件在4×4 mm〜2的芯片上结合了低噪声SIS混频器及其准光学天线,以及一个用作本地振荡器(LO)的超导锁相通量流量振荡器(FFO)。以及用于FFO锁相的SIS谐波混频器(HM)。将会展示飞行前测试和整合活动的最新结果。

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