Experimental Measurements on a 25 Mev Reflexotron

Schriber, S. O.; Funk, L. W.; Hodge, S. B.; Hutcheon, R. M.

doi:10.1109/tns.1977.4328851

Cited by 13 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1. The system is mirror-symmetric with respect to a plane passing through the axis of the accelerating structure, with input and output magnets structurally combined [11][12][13]. The parameterization of the magnetic mirror is shown in Fig.…”

Section: Magnetic Mirror a Beam Opticsmentioning

confidence: 99%

“…In the late 70's. of the last century, the Atomic Energy of Canada Limited developed original electron accelerator for radiation therapy with an energy of 5 -25 MeVa reflexotron [11][12][13]. It was based on the principle of the linotron [14] -acceleration of electrons in the forward and reverse directions in a standing wave accelerating structure using a magnetic mirror to return the beam to the accelerating structure.…”

Section: Introductionmentioning

confidence: 99%

“…Our approach to design of accelerator with a magnetic mirror differs from [11][12][13] in a number of essential details: a much more compact and more efficient C-band accelerating structure, optimized for the high capture efficiency, the narrow energy and phase spectra, and low transverse emittance; magnetic mirror with fixed field based on rare-earth permanent magnets; three-electrode electron gun with off-axis placement of the cathode with a current regulated in the range of two orders of magnitude. These changes make it possible to adjust the accelerated beam current in a wide range in accordance with the set energy; to reduce parasitic losses of the beam current and the associated parasitic radiation; eliminate the possibility of setting an erroneous energy value; significantly reduce the size of the accelerator and simplify its operation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electron Accelerator for Radiation Therapy with Beam Energy 6-20 MeV

Ovchinnikova¹,

Shvedunov²

2020

Preprint

View full text Add to dashboard Cite

Purpose: To describe a concept of a compact electron accelerator for external radiation therapy with variable energy in the range of 6 -20 MeV, based on linotron principle.Methods: Beam dynamics simulation using the CST and MAD-X code. Various optimization methods of multiparameter problem.Results: Our accelerator differs from the Reflexotron in a number of essential details: a much more compact and more efficient C-band accelerating structure, optimized for the high capture efficiency, narrow energy and phase spectra, and low transverse emittance; magnetic mirror with fixed field based on rare-earth permanent magnets; three-electrode electron gun with off-axis placement of the cathode with a current regulated in the range of two orders of magnitude. These improvements allow the possibility to: adjust the accelerated beam current in a wide range in accordance with the required energy; reduce parasitic losses of the beam current and the associated parasitic radiation; eliminate the risk of setting an erroneous energy value; significantly reduce the dimensions of the accelerator and simplify its operation. Conclusions:We presented the results of calculation of the electron accelerator for external radiation therapy in the energy range of 6 -20 MeV. The accelerator is based on the principle of double beam acceleration in the same accelerating structure, which allows to control the beam energy in a wide range, reduce RF power consumption and the dimensions of the accelerator, and, therefore, reduce its cost. The results can be used to develop the design of the accelerator on the platform of the KLT-6 complex created by ROSATOM.

show abstract

Section: Magnetic Mirror a Beam Opticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electron Accelerator for Radiation Therapy with Beam Energy 6-20 MeV

Ovchinnikova¹,

Shvedunov²

2020

Preprint

View full text Add to dashboard Cite

show abstract

“…In order for this situation to be achieved the recirculation path length as defined in the figure must be an integer number of RF wavelengths to the center of each accelerating cavity. Such "back-to-front" or reflex beam recirculation was actually used on the earliest recirculated linac where energy recovery was performed [2]. Figure 2.…”

Section: Beam Energy Recoverymentioning

confidence: 99%

High Brightness Beam Applications: Energy Recovered Linacs

Krafft

2007

Int. J. Mod. Phys. A

View full text Add to dashboard Cite

In the first part of the paper some general statements are made regarding applications suitable for utilizing energy recovered linacs (ERLs) by contrasting their potential performance to that of single pass linacs and storage rings. As a result of their potential for extremely good beam quality in combination with high average beam current, ERLs have been used and considered as drivers of both free electron laser and partially coherent photon sources, from THz through X-rays; as a suitable technology for high energy electron cooling; and as a continuous or semi-continuous electron beam source for high energy colliders. At present, beam requirements tend to be highly matched to end use requirements. By reviewing some of the many examples which have either been reduced to practice, or are being explored presently, one can develop an appreciation for the wide range of parameters being considered in ERL applications.

show abstract

“…The earliest technical realization of beam-energy recovery was stimulated by work in nuclear medicine. In an effort to obtain compact, high-efficiency, and lowcost electron accelerators for medical applications, reflexotron accelerators were invented, apparently without knowledge of Tigner's work, and developed at Chalk River Nuclear Laboratories (18). In this compact normal-conducting linac, 5-25-MeV beam energy was achieved out of a 13-MeV, 1.6-m rf structure that had the electron beam current bent back and circulated in the opposite direction to the first-pass accelerating current.…”

Section: Early Work On Energy Recoverymentioning

confidence: 99%

HIGH-CURRENTENERGY-RECOVERINGELECTRONLINACS

Merminga

Douglas

Krafft

2003

Annu. Rev. Nucl. Part. Sci.

View full text Add to dashboard Cite

The use of energy recovery provides a potentially powerful new paradigm for generation of the charged particle beams used in synchrotron radiation sources, high-energy electron cooling devices, electron-ion colliders, and other applications in photon science and nuclear and high-energy physics. Energy-recovering electron linear accelerators (called energy-recovering linacs, or ERLs) share many characteristics with ordinary linacs, as their six-dimensional beam phase space is largely determined by electron source properties. However, in common with classic storage rings, ERLs possess a high average-current-carrying capability enabled by the energy recovery process, and thus promise similar efficiencies. We discuss the concept of energy recovery and its technical challenges and describe the Jefferson Lab (JLab) Infrared Demonstration Free-Electron Laser (IR Demo FEL), originally driven by a 35-48-MeV, 5-mA superconducting radiofrequency (srf) ERL, which provided the most substantial demonstration of energy recovery to date: a beam of 250 kW average power. We present an overview of envisioned ERL applications and a development path to achieving the required performance. We use experimental data obtained at the JLab IR Demo FEL and recent experimental results from CEBAF-ERa GeV-scale, comparatively low-current energy-recovery demonstration at JLab-to evaluate the feasibility of the new applications of high-current ERLs, as well as ERLs' limitations and ultimate performance.

show abstract

Experimental Measurements on a 25 Mev Reflexotron

Cited by 13 publications

References 1 publication

Electron Accelerator for Radiation Therapy with Beam Energy 6-20 MeV

Electron Accelerator for Radiation Therapy with Beam Energy 6-20 MeV

High Brightness Beam Applications: Energy Recovered Linacs

HIGH-CURRENTENERGY-RECOVERINGELECTRONLINACS

Contact Info

Product

Resources

About