搜索结果: 1-11 共查到“物理学 x-rays”相关记录11条 . 查询时间(0.14 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Microphysical and non-thermal processes in the circumgalactic medium: turbulence, magnetic fields and cosmic rays
银河系 周介质 微物理 非热过程 湍流 磁场 宇宙射线
2023/4/18
Multiphase gas structure is ubiquitous in our universe. Recent observations suggest that large quantities of cool (10^4 K) gas are detected in the circumgalactic medium (CGM) of galaxy halos, which ex...
Millions of cosmic rays bombard the Earth’s atmosphere every second. These are naturally-occurring particles from outer space, which are extremely difficult to detect and measure. When they collide wi...
2018年SPIE光学感应，成像和光子计数会议（SPIE Optical Sensing,Imaging,and Photon Counting:From X-Rays to Thz）
2018年 SPIE 光学感应，成像和光子计数 会议
2017/11/27
Nano-structuring of optoelectronic devices enables photonic detectors, sensors, and imagers with functionalities and properties that surpass traditional bulk devices in virtually any metric; for examp...
Propagation of gamma rays and production of free electrons in air
Propagation of gamma rays production of free electrons Plasma Physics
2012/4/20
A new concept of remote detection of concealed radioactive materials has been recently proposed \cite{Gr.Nusin.2010}-\cite{NusinSprangle}. It is based on the breakdown in air at the focal point of a h...
Ultra-strong laser pulses: streak-camera for gamma-rays via pair production and quantum radiative reaction
gamma-rays zeptosecond pulses strong laser field electron-positron pair production radiation reaction
2011/8/5
Abstract: We show that a strong laser pulse combined with a strong x-ray pulse can be employed in a detection scheme for characterizing high-energy $\gamma$-ray pulses down to the zeptosecond timescal...
Cosmic rays and tests of fundamental principles
Cosmic rays tests of fundamental principles
2010/12/27
It is now widely acknowledged that cosmic rays experiments can test possible new physics directly generated at the Planck scale or at some other fundamental scale. By studying particle properties at e...
The Naked Truth or the Shadow of Doubt?X-Rays and the Problematic of Transparency
The Naked Truth the Shadow of Doubt X-Rays the Problematic of Transparency
2009/11/27
Late into the evening of 8 November 1895 Wilhelm Conrad Röntgen, a physics professor at the University of Würzburg, made a discovery that would revolutionize science almost overnight. While condu...
It is a phenomenon that has puzzled people for thousands of years and drove Benjamin Franklin to risk his kite and life in search of answers. Now, a trio of researchers in America may have finally fou...
γ Rays from Neutralino Annihilation into Photons
supersymmetric dark matter γ-ray spectrum
2007/8/15
2001Vol.36No.3pp.301-304DOI:
γ Rays from Neutralino Annihilation into Photons
SUN La-Zhen,1 LIU Yao-Yang,1,2 ZHANG Yuan-Zhong2,3 and JIANG Xiang-Dong4
1 Department of ...
Studies of Electrical Properties of Polyaniline Irradiated by X-rays
Electrical Properties Polyaniline X-rays
2010/10/15
Recent development and studies of physical and chemical properties of the conducting polymers have been calling the interest of many scientists. Among this group of materials, the polyaniline (PANI) d...
Measurement of Photon-Induced K X-Rays Production Cross Sections for Elements with 62 \le Z \le 74
K shell X-ray fluorescence Cross section
2010/4/13
X-ray production cross sections of Ka1, Ka2, Kb'1 (= Kb {\ss}1 + Kb3 + Kb5) and Kb'2 (= Kb2 + Kb4 + transitions from higher levels) lines have been measured and theoretically calculated for six elemen...