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- Title
A Radio-Frequency Ion Trap System for the Multi-Reflection Time-of-Flight Mass Spectrometer at SHANS and Its Offline Commissioning.
- Authors
Wang, Jun-Ying; Huang, Wen-Xue; Tian, Yu-Lin; Wang, Yong-Sheng; Wang, Yue; Zhang, Wan-Li; Huang, Yuan-Jun; Gan, Zai-Guo; Xu, Hu-Shan
- Abstract
To precisely measure atomic masses and select neutron-deficient isotopes produced by fusion evaporation reactions, an MRTOF-MS (multi-reflection time-of-flight mass spectrometer) at the SHANS (Spectrometer for Heavy Atom and Nuclear Structure) is being developed. One of the key parts, an RF ion trap system with the aim to provide brilliant ion pulses with a low energy spread and narrow pulse width for ion preparation prior to injection into the MRTOF mass analyzer, has been constructed and commissioned offline successfully. The principle, construction details and test results are reported. Pulsed beams of 39 K 1 + , 85 , 87 Rb 1 + and 133 Cs 1 + ions have been tested and the amplitudes and frequencies of the RF signals, DC voltages, helium gas pressure and time parameters have been scanned. The corresponding time spreads have reached 0.252 µs, 0.394 µs and 0.450 µs, respectively.
- Subjects
TIME-of-flight mass spectrometers; ION traps; ATOMIC mass; MASS spectrometers; NUCLEAR structure; NUCLEAR fusion
- Publication
Atoms (2218-2004), 2023, Vol 11, Issue 11, p139
- ISSN
2218-2004
- Publication type
Article
- DOI
10.3390/atoms11110139