Precise Measurement of the Absolute Yield of Fluorescence Photons in Atmospheric Gases
AIRFLY Collaboration, M. Ave, M. Boháčová, K. Daumiller, P. Di Carlo, C. Di Giulio, P. Facal San Luis, D. Gonzales, C. Hojvat, J. R. Hörandel, M. Hrabovský, M. … 展开作者
AIRFLY Collaboration, M. Ave, M. Boháčová, K. Daumiller, P. Di Carlo, C. Di Giulio, P. Facal San Luis, D. Gonzales, C. Hojvat, J. R. Hörandel, M. Hrabovský, M. Iarlori, B. Keilhauer, H. Klages, M. Kleifges, F. Kuehn, M. Monasor, L. Nožka, M. Palatka, S. Petrera, P. Privitera, J. Ridky, V. Rizi, B. Rouillé d'Orfeuil, F. Salamida, P. Schovánek, R. Šmida, H. Spinka, A. Ulrich, V. Verzi, C. Williams
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To appear in the Proceedings of CRIS 2010, Cosmic Ray International Seminar -- 100 years of Cosmic Ray Physics: from pioneering experiments to physics in space, Catania, Italy, 13-17 September 2010
We have performed a measurement of the absolute yield of fluorescence photons at the Fermilab Test Beam. A systematic uncertainty at 5% level was achieved by the use of Cherenkov radiation as a reference calibration light source. A cross-check was performed by an independent calibration using a laser light source. A significant improvement on the energy scale uncertainty of Ultra-High Energy Cosmic Rays is expected.
Atmospheric multiple scattering of fluorescence light from extensive air showers and effect of the aerosol size on the reconstruction of energy and depth of maximum
Neutrino Telescope Array Letter of Intent: A Large Array of High Resolution Imaging Atmospheric Cherenkov and Fluorescence Detectors for Survey of Air-showers from Cosmic Tau Neutrinos in the PeV-EeV Energy Range
本意向书（LoI）描述了中微子望远镜阵列（NTA）项目的大纲和计划。高能中微子为强子加速提供了独特而无可争辩的证据。最近，冰立方已经报道了超过预期的来自大气秒的天文中微子候选者，但受到水切伦科夫探测方法的限制。下一代高能中微子望远镜应该能够为宇宙高能中微子建立无可争辩的证据。它不仅应该有数量级的更大的灵敏度，而且还应该有足够的指向精度来探测已知或未知的天文物体，而不会受到大气层的影响。拟议的装置是一个大型阵列的成像大气切伦科夫和荧光探测器的复眼站，具有宽视场和精细的观测能力，从PeV-EeV能量范围的宇宙τ中微子的空气簇射。这套先进的光学复杂系统主要是在全天空巡天高分辨率空气簇射探测器（Ashra）的基础上发展起来的，并采用τ簇射掠地方法对PeV-EeV τ中微子进行巡天。在标准GRB中微子注量的条件下，它可以对PeV-EeV τ中微子进行宽（30 ° x 360 °）和深（~400 Mpc）的巡天观测，而且在基本无背景的条件下，它的指向精度优于0.2 °。通过在宽视场中对掠地τ阵雨进行先进成像，我们的目标是明确发现和识别天文τ中微子源，为天体物理强子模型提供不可逃避的证据，以加速和/或在精确确定的方向上传播极高能量的质子。
