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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wait, G.D. Barnes, M.J. Bishop, D. Waters, G. |
| Copyright Year | 1993 |
| Description | Author affiliation: TRIUMF, Vancouver, BC, Canada (Wait, G.D.; Barnes, M.J.; Bishop, D.; Waters, G.) |
| Abstract | A beam chopper is required in the transfer line between the 1 GeV/c TRIUMF cyclotron and the Accumulator ring of the proposed 30 GeV/c KAON Factory synchrotron. The beam chopper must generate pulses with a magnitude of at least 9.5 kV with rise and fall times of less than 38 ns (corresponds to kick rise/fall time of less than 39 ns) at a repetition rate of 10/sup 6/ pulses per second at a 100% duty cycle. The pulse pattern must be synchronized to the 23 MHz RF system for the TRIUMF cyclotron. Two different pulse widths are required to deflect a total of 5 beam bursts out of every 45 beam bursts that are extracted from the cyclotron. The inter-leaved pulses will have flattop durations of more than 48 ns and 92 ns. Results of measurements on a prototype chopper are presented where pulses of two different widths are synchronized to an RF synthesizer and stored in a low loss delay cable. Rise and fall times of 20 ns to 40 ns have been achieved with 12 kV to 15 kV wide and narrow pulses at 1.9/spl times/10/sup 6/ pulses per second continuous operation. |
| Starting Page | 1181 |
| Ending Page | 1183 |
| File Size | 352397 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780312031 |
| DOI | 10.1109/PAC.1993.308650 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-05-17 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Mesons Production facilities Choppers Cyclotrons Radio frequency Space vector pulse width modulation Pulse measurements Synchrotrons Pulse generation Loss measurement |
| Content Type | Text |
| Resource Type | Article |
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