Application of novel material in crystal accelerator concepts

Newberger, Barry S.; Tajima, T.; Huson, F. R.; MacKay, W. W.; Covington, B. C.; Payne, James R.; Zou, Zhigang; Mahale, N.K.; Ohnuma, S.

doi:10.1109/pac.1989.73204

Cited by 4 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This means that the lower the gas density, the longer the acceleration distance required to reach greater energies, an undesirable condition for achieving the goal of ultrahigh energies. Motivated by such considerations, utilization of metallic crystals was proposed in the 1980s [10][11][12][13][14][15][16], where TeV=cm acceleration gradient was anticipated. This includes the cases of wakefield acceleration in metallic crystal channels.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Particle-in-cell simulation of x-ray wakefield acceleration and betatron radiation in nanotubes

Zhang

Tajima

Farinella

et al. 2016

Phys. Rev. Accel. Beams

View full text Add to dashboard Cite

Though wakefield acceleration in crystal channels has been previously proposed, x-ray wakefield acceleration has only recently become a realistic possibility since the invention of the single-cycled optical laser compression technique. We investigate the acceleration due to a wakefield induced by a coherent, ultrashort x-ray pulse guided by a nanoscale channel inside a solid material. By two-dimensional particlein-cell computer simulations, we show that an acceleration gradient of TeV=cm is attainable. This is about 3 orders of magnitude stronger than that of the conventional plasma-based wakefield accelerations, which implies the possibility of an extremely compact scheme to attain ultrahigh energies. In addition to particle acceleration, this scheme can also induce the emission of high energy photons at ∼Oð10-100Þ MeV. Our simulations confirm such high energy photon emissions, which is in contrast with that induced by the optical laser driven wakefield scheme. In addition to this, the significantly improved emittance of the energetic electrons has been discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

“…On the other hand, a disadvantage of metallic channels is its high collision frequency with the metallic electrons [19]. This may be alleviated by adopting nanoholes [14,[20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Particle-in-cell simulation of x-ray wakefield acceleration and betatron radiation in nanotubes

Zhang

Tajima

Farinella

et al. 2016

Phys. Rev. Accel. Beams

View full text Add to dashboard Cite

show abstract

“…The de-channeling length (K) is also a critical factor, in particular in the low energy regime, since it scales as E 1/2 [14]. The idea of accelerating charged particles in solids along major crystallographic directions was suggested by several scientists such as Pisen Chen, Robert Noble, Richard Carrigan, and Toshiki Tajima in the 1980s and 1990s [ [15][16][17][18][19] for the possible advantage that periodically aligned electrostatic potentials in crystal lattices are capable of providing a channeling effect [20][21][22][23][24][25][26] in combination with low emittance determined by an Ångström-scale aperture of the atomic ''tubes''. The basic concepts of atomic accelerator with short pulse driving sources like high power lasers or ultra-short bunches have been considered theoretically.…”

Section: Crystal Channeling-tev/m Accelerationmentioning

confidence: 99%

TeV/m nano-accelerator: Investigation on feasibility of CNT-channeling acceleration at Fermilab

Shin

Lumpkin

Thurman‐Keup

2015

Nuclear Instruments and Methods in Physics Research Section B:

View full text Add to dashboard Cite

a b s t r a c tThe development of high gradient acceleration and tight phase-space control of high power beams is a key element for future lepton and hadron colliders since the increasing demands for higher energy and luminosity significantly raise costs of modern HEP facilities. Atomic channels in crystals are known to consist of 10-100 V/Å potential barriers capable of guiding and collimating a high energy beam providing continuously focused acceleration with exceptionally high gradients (TeV/m). However, channels in natural crystals are only angstrom-size and physically vulnerable to high energy interactions, which has prevented crystals from being applied to high power accelerators. Carbon-based nano-crystals such as carbon-nanotubes (CNTs) and graphenes have a large degree of dimensional flexibility and thermomechanical strength, which could be suitable for channeling acceleration of MW beams. Nano-channels of the synthetic crystals can accept a few orders of magnitude larger phase-space volume of channeled particles with much higher thermal tolerance than natural crystals. This paper presents the current status of CNT-channeling acceleration research at the Advanced Superconducting Test Accelerator (ASTA) in Fermilab.

show abstract

“…Extreme short electron bunches created by this mechanism might also be of interest for exciting a wakefield in a crystal. Short electron bunch lengths and high electron densities within the bunch may be used to resonantly excite electrostatic waves along a nano [17] or meso hole structure [18] of a crystal. In [17] , pores of radii of several lattice spacings are etched through finite volumes istance between metallic film and target.…”

Section: Wpmentioning

confidence: 99%