APF or KONUS drift tube structures for medical synchrotron injectors-a comparison

Minaev, S.; Ratzinger, U.; Sick, Bernhard

doi:10.1109/pac.1999.792368

Cited by 14 publications

(11 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A comparison between KONUS and APF layouts was reported in Ref. [35]. APF's advantage is the missing need of magnetic lenses, which reduces structure costs by about 30%.…”

Section: Comparison Between Konus Apf and Equusmentioning

confidence: 99%

Combined zero degree structure beam dynamics and applications

Ratzinger

Hähnel

Tiede

et al. 2019

Phys. Rev. Accel. Beams

View full text Add to dashboard Cite

The combined zero degree structure (KONUS) is a quasiperiodic structure. It was developed for the low-energy part of multigap drift tube linacs with H-type cavities. Their rf efficiency depends very much on a low electrical capacity of the drift tube structure, while in E-type structures like the Alvarez-DTL this is a minor effect. Therefore, instead of having quadrupole singlets integrated in voluminous drift tubes, KONUS allows one to develop a separated function drift tube linac (DTL) with a large voltage gain between two lenses. Very low beam injection energies can be realized, as the drift tube lengths can range down to around 10 mm. One KONUS period consists of a triplet lens, a rebuncher with a few gaps at a synchronous phase around −35°, and the main multigap acceleration designed for a hypothetical zero degree synchronous particle. The longitudinal beam dynamics along this main acceleration section and the layout of the quadrupole triplet channel are explained in detail. Two examples for pulsed high current proton and heavy ion acceleration are included.

show abstract

“…A comparison between KONUS and APF layouts was reported in Ref. [35]. APF's advantage is the missing need of magnetic lenses, which reduces structure costs by about 30%.…”

Section: Comparison Between Konus Apf and Equusmentioning

confidence: 99%

Combined zero degree structure beam dynamics and applications

Ratzinger

Hähnel

Tiede

et al. 2019

Phys. Rev. Accel. Beams

View full text Add to dashboard Cite

show abstract

“…The examples of the proposed modeling system and description of the used codes are given below. The initial data for modeling can be found in (Schlitt and Ratzinger, 1998;Minaev, Ratzinger and Schlitt, 1999;Angert et al, 1991;Angert et al, 1990;Gikal, 2013). The optimization of the beam characteristics on injector output depends on the optimization of separate parts of an injector; however, to achieve this mathematical control theory is not always suitable.…”

Section: Velocities Of the Ions Of Different Types Injectedmentioning

confidence: 99%

“…12 and C 6+ 12 ions was considered in papers (Schlitt and Ratzinger, 1998;Minaev et al, 1999) with respect to the German proposal for the HIT medical facility. Because the yield of C 6+…”

Section: Particle In Cell Simulationsmentioning

confidence: 99%

Preacceleration of the multicharged ions with the different A/Z ratios in single RFQ channel

Altsybeyev

Svistunov

Durkin

et al. 2018

CAP

View full text Add to dashboard Cite

The preacceleration of multicharged ions with the different A/Z ratios extracted from electron cyclotron resonance (ECR) sources is discussed in this report. The capture ratio, emittances and current values of multicharged ions may be better if the ions are preaccelerated before their injection into a booster synchrotron. There is a considerable possibility of separate preacceleration of multicharged ions with different A/Z ratios in a single radio-frequency quadrupole (RFQ) channel. The magnitude of the injection energy into RFQ is about a few keV/u whereas the magnitudes of the injection energy into booster or following linac cascade are 300 keV/u. In addition in this paper we discuss the approach of the fast channel parameter optimization technique by using swarm computations and gradient descend for improving the capture ratio. The optimizations aimed at changing the regular part of the RFQ or matching section profile to improve the matching of the arbitrary oriented in phase space input beam.

show abstract

“…In the history, several different types of APF have been designed and constructed. [7][8] [9] [10] [11] Due to its relative weak focusing strength, a simple FODO type APF would be unsuitable for us. Also, as we consider the transmission efficiency as well as emittance suppression, an Iwata type APF become the best choice.…”

Section: The Principle Of the Dtl Designmentioning

confidence: 99%

Conceptional design of the laser ion source based hadrontherapy facility

Xie¹,

Song²,

Zhang³

2014

Chinese Phys. C

View full text Add to dashboard Cite

Laser ion source (LIS), which can provide carbon beam with highly stripped state (C 6+ ) and high intensity (several tens mA), would significantly change the overall design of the hadrontherapy facility. A LIS based hadrontherapy facility is proposed with the advantage of short linac length, simple injection scheme and small synchrotron size. With the experience from the DPIS and HITFiL project that had conducted in IMP, a conceptional design of the LIS based hadrontherapy facility will be present with special dedication to APF type IH DTL design and simulation.

show abstract

APF or KONUS drift tube structures for medical synchrotron injectors-a comparison

Cited by 14 publications

References 2 publications

Combined zero degree structure beam dynamics and applications

Combined zero degree structure beam dynamics and applications

Preacceleration of the multicharged ions with the different A/Z ratios in single RFQ channel

Conceptional design of the laser ion source based hadrontherapy facility

Contact Info

Product

Resources

About