Compact high repetition rate Thomson parabola ion spectrometer
- Colorado State Univ., Fort Collins, CO (United States)
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Colorado State Univ., Fort Collins, CO (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Here, we present the development of a compact Thomson parabola ion spectrometer capable of characterizing the energy spectra of various ion species of multi-MeV ion beams from >1020 W/cm2 laser produced plasmas at rates commensurate with the highest available from any of the current and near-future PW-class laser facilities. This diagnostic makes use of a polyvinyl toluene based fast plastic scintillator (EJ-260), and the emitted light is collected using an optical imaging system coupled to a thermoelectrically cooled scientific complementary metal–oxide–semiconductor camera. This offers a robust solution for data acquisition at a high repetition rate, while avoiding the added complications and nonlinearities of micro-channel plate based systems. Different ion energy ranges can be probed using a modular magnet setup, a variable electric field, and a varying drift-distance. We have demonstrated operation and data collection with this system at up to 0.2 Hz from plasmas created by irradiating a solid target, limited only by the targeting system. With the appropriate software, on-the-fly ion spectral analysis will be possible, enabling real-time experimental control at multi-Hz repetition rates.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); US Department of the Navy, Office of Naval Research (ONR)
- Grant/Contract Number:
- AC52-07NA27344; SC0019076; SCW1720; N000142012842; US DESC0019076
- OSTI ID:
- 1984752
- Alternate ID(s):
- OSTI ID: 1924349
- Report Number(s):
- LLNL-JRNL-849676; 1072348; TRN: US2402966
- Journal Information:
- Review of Scientific Instruments, Vol. 94, Issue 2; ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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