Author:
Xiao J.H.,Du Y.C.,Li H.Q.,Zhao Y.T.,Sheng L.
Abstract
Abstract
Transient electromagnetic fields — during or after
laser/particle beam-target interaction — are a significant and
hardly explored parameter. This paper proposes a new method for
measuring transient electromagnetic fields, based on ultrafast
high-energy electron lens radiography, that has a high tolerance for
matter in the diagnosed region. With this method, a continuous point
strength diagnosis helps to obtain delicate. Furthermore, dual-band
diagnosis can be used to determine the field direction. To verify
its feasibility, a 50 MeV electron lens radiography beamline was
designed and optimized and a preliminary simulation for diagnosing
circular magnetic fields ranging from 170 T·μm to
680 T·μm was performed. For a number density of
2000/pixel and ±10% non-uniformity, ±15% diagnostic
field strength accuracy has been obtained. The direction diagnosis
also works well. Combined with the advantages of high-energy
electron beams, ultrafast high-energy electron lens radiography is
suitable for transient electromagnetic field diagnosis.
Subject
Mathematical Physics,Instrumentation
Cited by
1 articles.
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