A multichannel time-of-flight system for observation of energetic ions of multispecies generated from relativistic laser plasma
- Central Research Laboratory, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita, Hamamatsu, Shizuoka 434-8601 (Japan)
A multichannel time-of-flight (TOF) system was constructed to observe the ions generated from relativistic laser plasma, where the ions have polychromatic energies and multiple species. The TOF system is composed of a ten-channel scintillation detector array and an electromagnet that generates a magnetic field of 0-1.24 T. The magnet field enables us to analyze protons, deuterons, and full-stripped carbon ions to 50, 25, and 150 MeV, respectively. The system experimentally identified protons of 0.27-1.6 MeV energy and ions of a half specific charge (deuterons of 0.3-0.8 MeV and full-stripped carbons of 1.8-4.8 MeV). The measured TOF values agree well with the calculated values within the designed accuracy; {+-}2.5 ns for protons and {+-}5 ns for the others (d or C{sup 6+}) on each detector channel. Comparison of ion numbers detected by a track detector (CR-39) and the TOF system enabled us to obtain the number of ions detected on each scintillation counter with less than 16% error.
- OSTI ID:
- 22053635
- Journal Information:
- Review of Scientific Instruments, Vol. 81, Issue 2; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCURACY
CARBON IONS
DEUTERONS
DIELECTRIC TRACK DETECTORS
ELECTROMAGNETS
LASER-PRODUCED PLASMA
MAGNETIC FIELDS
MEV RANGE
PROTONS
RELATIVISTIC PLASMA
SCINTILLATION COUNTERS
TAIL IONS
TIME-OF-FLIGHT METHOD
TIME-OF-FLIGHT SPECTROMETERS