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Bremsstrahlung during electron capture to continuum |
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| Institution: | 1. Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Viet Nam;2. Department of Physics and Center for High Energy Physics, Kyungpook National University, Daegu 702-701, Republic of Korea;3. Department of Advanced Nuclear Engineering, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea;4. Research Center, Dongnam Institute of Radiological and Medical Science, Busan 619-953, Republic of Korea;1. Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada;2. National Superconducting Cyclotron Laboratory Michigan State University, East Lansing, MI 48824, USA;1. Centre for Mathematical Sciences, University of Plymouth, Plymouth, PL4 8AA, United Kingdom;2. Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, 621000 Mianyang, Sichuan, China |
| Abstract: | Theoretical approaches for radiative ionization (RI) in energetic collisions of highly stripped projectiles with target atoms are reviewed and set into context with related processes. The interrelation between RI and electron-nucleus bremsstrahlung is displayed with the help of inverse kinematics. Particular emphasis is laid on the forward-peak region of the electron spectrum resulting from target electrons which are slowed down to approximately zero velocity in the projectile frame of reference. The forward-peak intensity and shape for RI is contrasted to the one obtained from nonradiative capture to continuum. The ridge in the photon spectrum related to forward-peak electrons can unambiguously be identified in measured doubly differential photon emission cross sections resulting from ion–atom collisions at relativistic impact energies. |
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