JPCam：用于J-PAS调查的1.2G像素相机
JPCam: A 1.2Gpixel camera for the J-PAS survey
摘要：
JPCam是一款14-CCD马赛克相机，使用新型e2 v 9 k x 9 k 10微米像素16通道探测器，将部署在西班牙阿拉贡OAJ（Observatorio Astrofisico de Javalambre）的专用2.55 m宽视场望远镜上。该相机的目的是执行一个重子声学振荡（BAO）调查的北部天空。J-PAS巡天策略将使用54个相对窄波段（~13.8nm）的滤光片，在370到920 nm之间等间隔，加上3个宽波段滤光片，以达到前所未有的光度红移精度，用于测量天空中约8000平方度的微弱星系。低温恒温器、探测器镶嵌和读取电子设备由e2 v根据与J-PAS的合同提供，而容纳快门和过滤器组件的机械结构由INPE（国家空间研究所）领导的巴西财团设计和建造。将四组14个滤光片放置在周围环境中，刚好在杜瓦瓶窗口上方，但直接与探测器对齐，导致每个CCD之间具有约10 mm间隙的马赛克。500毫米大光圈快门预计将由波恩的Argelander-Institut fur Astronomie提供。我们将介绍JPCam的概述，从滤波器配置到CCD镶嵌相机。将包括主要J-PAS科学项目的简要概述。
英文摘要：
JPCam is a 14-CCD mosaic camera, using the new e2v 9k-by-9k 10microm-pixel 16-channel detectors, to be deployed on a dedicated 2.55m wide-field telescope at the OAJ (Observatorio Astrofisico de Javalambre) in Aragon, Spain. The camera is designed to perform a Baryon Acoustic Oscillations (BAO) survey of the northern sky. The J-PAS survey strategy will use 54 relatively narrow-band (~13.8nm) filters equi-spaced between 370 and 920nm plus 3 broad-band filters to achieve unprecedented photometric red-shift accuracies for faint galaxies over ~8000 square degrees of sky. The cryostat, detector mosaic and read electronics is being supplied by e2v under contract to J-PAS while the mechanical structure, housing the shutter and filter assembly, is being designed and constructed by a Brazilian consortium led by INPE (Instituto Nacional de Pesquisas Espaciais). Four sets of 14 filters are placed in the ambient environment, just above the dewar window but directly in line with the detectors, leading to a mosaic having ~10mm gaps between each CCD. The massive 500mm aperture shutter is expected to be supplied by the Argelander-Institut fur Astronomie, Bonn. We will present an overview of JPCam, from the filter configuration through to the CCD mosaic camera. A brief outline of the main J-PAS science projects will be included.
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