| Paper | Title | Page |
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| TUPAN083 | Space-Charge Neutralization in Ion Undulator Linear Accelerator | 1565 |
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RF undulator accelerator (UNDULAC-RF) is suggested as an initial part of high intensity ion linac*. Such accelerator can be realized in periodical IH structure where a field has no spatial harmonics in synchronism with the beam. Ion beam is accelerated by the combined field of two non-synchronous harmonics. Accelerating force value is proportional to squared particle charge. Transmission coefficient and accelerating gradient for low velocity ions with the identical sign of charge are the same as in RFQ. The limit beam current can be larger in this type accelerator. Its value was calculated earlier in paper **. But the beam intensity can be substantially increased in UNDULAC by using space charge neutralization of positive and negative charged ions. In UNDULAC positive and negative ions can be accelerated simultaneously within the same bunch. The process of acceleration and focusing of oppositely charged ions with the identical charge-to-mass ratio is discussed in this paper.
* E. S. Masunov, Technical Physics, V. 46, 11, 2001, pp. 1433-1436.**E. S. Masunov, S. M. Polozov, NIM., A 558, 2006, pp. 184-187. |