Present status and first results of the final focus beam line at the KEK Accelerator Test Facility

Bambade, P.; Pons, M. Alabau; Amann, J.; Angal-Kalinin, D.; Apsimon, R.; Araki, S.; Aryshev, Alexander; Bai, Sha; Bellomo, P.; Bett, Douglas; Blair, G.A.; Bolzon, B.; Boogert, Stewart; Boorman, G.; Burrows, Philip; Christian, G.B.; Coe, P.; Constance, B.; Delahaye, Jean‐Pierre; Deacon, L.; Elsen, E.; Faus‐Golfe, A.; Fukuda, Masafumi; Gao, Jie; Geffroy, N.; Gianfelice-Wendt, E.; Güler, H.; Hayano, H.; Heo, A.; Honda, Y.; Huang, J. Y.; Hwang, Woonbong; Iwashita, Yoshihisa; Jérémie, A.; Jones, James; Kamiya, Yoshio; Karataev, P.; Kim, E. S.; Kim, H. S.; Kim, S. H.; Komamiya, S.; Kubo, K.; Kume, Tatsuya; Kuroda, S.; Lam, Briant; Lyapin, A.; Masuzawa, M.; McCormick, Douglas; Molloy, Stephen; Naito, Takashi; Nakamura, Takashi; Nelson, J.; Okamoto, D.; Okugi, T.; Oroku, Masahiro; Park, Y. J.; Parker, B.; Paterson, E.; Perry, C.; Pivi, M.; Raubenheimer, T.O.; Renier, Y.; Resta-López, Javier; Rimbault, C.; Ross, M.; Sanuki, T.; Scarfe, Andrew; Schulte, Daniel; Seryi, Andrei; Spencer, C.M.; Suehara, Taikan; Sugahara, R.; Swinson, C.; Takahashi, Tohru; Tauchi, T.; Terunuma, N.; Tomás, Rogelio; Urakawa, J.; Urner, D.; Verderi, M.; Wang, M. H.; Warden, Matthew; Wendt, M.; White, G.; Wittmer, W.; Wolski, A.; Woodley, M.; Yamaguchi, Youhei; Yamanaka, T.; Yan, Yi‐Long; Yoda, Hakutaro; Yokoya, Kaoru; Zhou, Feng; Zimmermann, F.

doi:10.1103/physrevstab.13.042801

Cited by 27 publications

(19 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2008, as part of the ATF2 project [18], the beamline was upgraded and the extraction line was replaced with one incorporating an energy-scaled version of the compact beam focusing system designed for linear colliders [19]. The goals of the ATF2 Collaboration [20] are to produce a 37 nm vertical beam spot size at the final focus point and to stabilize the vertical beam position to the nanometer level.…”

Section: Methodsmentioning

confidence: 99%

Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider

Apsimon

Bett

Kraljevic

et al. 2018

Phys. Rev. Accel. Beams

Self Cite

View full text Add to dashboard Cite

A high-resolution, intra-train position feedback system has been developed to achieve and maintain collisions at the proposed future electron-positron International Linear Collider (ILC). A prototype has been commissioned and tested with beam in the extraction line of the Accelerator Test Facility at the High Energy Accelerator Research Organization (KEK) in Japan. It consists of a stripline beam position monitor (BPM) with analogue signal-processing electronics, a custom digital board to perform the feedback calculation and a stripline kicker driven by a high-current amplifier. The closed-loop feedback latency is 148 ns. For a three-bunch train with 154 ns bunch spacing, the feedback system has been used to stabilize the third bunch to 450 nm. The kicker response is linear, and the feedback performance is maintained, over a correction range of over ±60 µm. The propagation of the correction has been confirmed by using an independent stripline BPM located downstream of the feedback system. The system has been demonstrated to meet the BPM resolution, beam kick and latency requirements for the ILC.

show abstract

Section: Methodsmentioning

confidence: 99%

Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider

Apsimon

Bett

Kraljevic

et al. 2018

Phys. Rev. Accel. Beams

Self Cite

View full text Add to dashboard Cite

show abstract

“…This has the advantage that variations in the test tone amplitude and phase are canceled as can be seen from Eq. (7).…”

Section: Mover Systemmentioning

confidence: 99%

“…The rf signal processing electronics parameters. ðt DDC;d Þ A r ðt DDC;r Þ sin½ d ðt DDC;r Þ À r ðt DDC;r Þ;(7) …”

mentioning

confidence: 99%

Cavity beam position monitor system for the Accelerator Test Facility 2

Kim¹,

Ainsworth²,

Aryshev³

et al. 2012

Phys. Rev. ST Accel. Beams

Self Cite

View full text Add to dashboard Cite

The Accelerator Test Facility 2 (ATF2) is a scaled demonstrator system for final focus beam lines of linear high energy colliders. This paper describes the high resolution cavity beam position monitor (BPM) system, which is a part of the ATF2 diagnostics. Two types of cavity BPMs are used, C-band operating at 6.423 GHz, and S-band at 2.888 GHz with an increased beam aperture. The cavities, electronics, and digital processing are described. The resolution of the C-band system with attenuators was determined to be approximately 250 nm and 1 m for the S-band system. Without attenuation the best recorded C-band cavity resolution was 27 nm.

show abstract

“…The ATF2 commissioning and first results have been described elsewhere. In particular, the paper [25] described the status of ATF2 as of 2010 when most of the beam hardware been commissioned and regular operation with the beam started.…”

Section: Atf2 Commissioning and Recent Resultsmentioning

confidence: 99%

Experimental and theoretical progress of linear collider final focus design and ATF2 facility

Seryi

Tomás

Zimmermann

et al. 2014

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

show abstract

Present status and first results of the final focus beam line at the KEK Accelerator Test Facility

Cited by 27 publications

References 6 publications

Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider

Design and operation of a prototype interaction point beam collision feedback system for the International Linear Collider

Cavity beam position monitor system for the Accelerator Test Facility 2

Experimental and theoretical progress of linear collider final focus design and ATF2 facility

Contact Info

Product

Resources

About