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We performed a series of 1381 full numerical simulations of high energy collision of two black holes to search for the maximum recoil velocity after their merger. We studied equal mass binaries with opposite spins pointing along the orbital plane to maximize asymmetric gravitational radiation and performed a search of spin orientations in the plane, impact parameters, and initial linear momenta to find a maximum recoil velocity extrapolated to the extreme spinning case of [Formula: see text][Formula: see text]km/s, thus tightly bounding recoil by [Formula: see text] the speed of light.
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Design of the ion-optics for the MRSt neutron spectrometer at the National Ignition Facility (NIF)
A new Magnetic Recoil Spectrometer (MRSt) is designed to provide time-resolved measurements of the energy spectrum of neutrons emanating from an inertial confinement fusion implosion at the National Ignition Facility. At present, time integrated parameters are being measured using the existing magnet recoil and neutron time-of-flight spectrometers. The capability of high energy resolution of 2 keV and the extension to high time resolution of about 20 ps are expected to improve our understanding of conditions required for successful fusion experiments. The layout, ion-optics, and specifications of the MRSt will be presented.
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- Award ID(s):
- 2011890
- PAR ID:
- 10364451
- Publisher / Repository:
- American Institute of Physics
- Date Published:
- Journal Name:
- Review of Scientific Instruments
- Volume:
- 93
- Issue:
- 3
- ISSN:
- 0034-6748
- Page Range / eLocation ID:
- Article No. 033505
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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