Fedezd fel a természetet
نویسندگان
چکیده
منابع مشابه
Measuring Fel Radiation Properties at Visa-fel
The VISA (Visible to Infrared SASE Amplifier) SASE free electron laser has been successfully operated at the Accelerator Test Facility (ATF) at BNL. High gain and saturation were observed at 840 nm. We describe here the diagnostic system, experimental procedures and data reduction algorithms, as the FEL performance was measured along the length of the undulator. We also discuss selected spectra...
متن کاملFrequency Chirped SASE FEL
We present a statistical analysis of the temporal and spectral properties of SASE radiation from an energy-chirped electron beam passing through a long undulator. It is found that the coherence time is independent of the chirp, while the range of spectral coherence is linearly proportional to it. We consider the use of a monochromator to pick out a small temporal slice of the radiation output. ...
متن کاملRadiation Pulse Compression for a SASE-FEL
The total radiation pulse consists of NS spikes, and the total pulse length is LP=NSLc. In a normal configuration all the spikes have the same line-width and the same central frequency. Chirping the pulse, i.e. changing the frequency of each spike by a quantity proportional to the spike longitudinal position inside the pulse, allow us to compress the pulse using a pair of diffraction gratings. ...
متن کاملProgress toward a Soft X-ray Fel
The recent successes in operating FELs from the far infrared to the visible and near UV [1], together with a better understanding of the physics and technology of these systems, are leading us to explore again the possibility of using FELs to produce coherent radiation in the XUV region, at wavelength shorter than 100 nm . In this paper we derive a set of scaling laws, which we will use to stud...
متن کاملComparison between a FEL amplifier and oscillator
Previous experiments with the Raman FEL, situated at the Twente University, showed that the output was influenced by the rather strong increase of the current density with time . The field emission diode has been modified to produce a more constant current pulse to simplify the analysis of the measurements . This resulted in a lower current density of the electron beam . With this new diode two...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Gyermeknevelés
سال: 2021
ISSN: 2063-9945
DOI: 10.31074/gyntf.2021.1.340.352