IMP, Lanzhou, People's Republic of China
TUB, Beijing, People's Republic of China
ANL, Argonne, Illinois, USA
THPP011
IMP, Lanzhou, People's Republic of China
TUB, Beijing, People's Republic of China
ANL, Argonne, Illinois, USA
| Paper | Title | Page |
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| MOPP015 | High Energy Electron Radiography Experiment Research Based on Picosecond Pulse-width Bunch | 76 |
| MOPOL01 | use link to see paper's listing under its alternate paper code | |
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| A new scheme is proposed that high energy electron beam as a probe is used for time resolved imaging measurement of high energy density materials, especially for high energy density matter and inertial confinement fusion. The first picosecond pulse-width electron radiography experiment was achieved by Institute of Modern Physics, Chinese Academy of Sciences and Tinghua University (THU), based on THU Linear electron accelerator (LINAC). It is used for principle test and certifying that this kind of LINAC with ultra-short pulse electron bunch can be used for electron radiography. The experiment results, such as magnifying factor and the imaging distortion, are consistent with the beam optical theory well. The 2.5 um RMS spatial resolution has been gotten with magnifying factor 46, with no optimization the imaging lens section. It is found that in the certain range of magnifying factor, the RMS spatial resolution will get better with bigger magnifying factor. The details of experiment set up, results, analysis and discussions are presented here. | ||
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Poster MOPP015 [2.866 MB] | |
THPP011 |
A high energy electron radiography system based on electron linac | |
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| Abstract: High energy electron radiography technique, a new scheme to diagnose the high energy density matter, was proposed in 2012 by Institute of Modern Physics (IMP). The high energy density physics experimental research needs a fast, temporal and 3-dimensional diagnostic system to monitor the density evolution during ~200ns compression time. A prove-of-principle experiment was carried out on the 50MeV electron linac accelerator of Tsinghua University. 1.5um spatial resolution was measured by imaging a TEM grid with magnetic lens imaging system. Meanwhile, the simulation research on the interaction between the high energy electron and dense matter was also implemented to verify that the 1~2GeV electrons could penetrate the 200ug/cm2 dense matter with relative revolution in both spatial and time dimensions through an appropriate magnetic imaging system. | ||