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Related papers: High Resolution BPM Upgrade for the ATF Damping Ri…

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A double kicker system which extracts the ultra-low emittance multi-bunch beam stably from ATF damping ring was developed. The performance of the system was studied comparing an orbit jitter with single kicker extraction in single bunch…

Accelerator Physics · Physics 2007-05-23 T. Imai , K. Nakai , H. Hayano , J. Urakawa , N. Terunuma

The closed-off structure of the Fermilab Drift Tube Linac precludes a robust array of instrumentation from directly monitoring the H- beam that is accelerated from 750 keV to 116 MeV. To improve beam tuning and operational assessment of…

Accelerator Physics · Physics 2025-11-25 E. V. Chen , A. L. Saewert , R. V. Sharankova

As of July 2025, the SuperKEKB accelerator, which collides 7 GeV electrons with 4 GeV positrons to abundantly produce particles such as B mesons and tau leptons, holds the world record for the highest instantaneous luminosity. Continuous…

Accelerator Physics · Physics 2025-10-13 Shinnosuke Kato , Gaku Mitsuka

A new laser-wire is being installed in the extraction line of the ATF at KEK. This device aims at demonstrating that laser-wires can be used to measure micrometre scale beam size.

The control of beam phase relative to the accelerating RF field within a superconducting cavity is important in many accelerator applications and is of particular importance for a free electron laser facility. As standard practice, the…

Accelerator Physics · Physics 2018-11-14 L. Shi , N. Baboi , R. M. Jones

The new method to stabilize the beam energy of the KEK 40MeV proton linac, is developed now. In this method, the signal of the velocity monitor installed upstream the debuncher in the 40MeV beam line, is processed and then fed to the phase…

Accelerator Physics · Physics 2007-05-23 Z. Igarashi , K. Nanmo , T. Takenaka , E. Takasaki

We present the development of the FBCM23 ASIC designed for the Phase-II upgrade of the Fast Beam Condition Monitoring (FBCM) system built at the CMS experiment which will replace the present luminometer based on the BCM1F ASIC [1]. The FBCM…

Signal Processing · Electrical Eng. & Systems 2024-02-29 Jan Kaplon , Grzegorz Wegrzyn , Konstantin Shibin , Marnix Barendregt

This paper proposes a novel approach that employs error amplification and ADC-based dual-mixer time-difference (ADC-based-DMTD) technique for high-precision locking of laser repetition frequency with compact size. This electronic system…

Optics · Physics 2025-04-17 Qibin Zheng , Zhengyi Tao , Lei Wang , Zhaohui Bu , Zuanming Jin , Zhao Wang

Beam injections to KEKB and Photon Factory are performed with pulse-to-pulse modulation at 50 Hz. Three very different beams are switched every 20 ms in order to inject those beams into KEKB HER, LER and Photon Factory (PF) simultaneously.…

Accelerator Physics · Physics 2018-09-10 Kazuro Furukawa , Masanori Satoh , Tsuyoshi Suwada , Tatsuro Nakamura

For the PIP-II program, transverse emittance in the Fermilab Booster must remain well controlled at higher bunch intensities. 4-plate beam position monitors (BPMs) have a small but measurable quadrupole moment, making it possible to infer…

Accelerator Physics · Physics 2025-11-26 M. A. Balcewicz , C. Y. Tan

Currently ALS is undergoing an upgrade to ALSU to produce 100 times brighter soft X-ray light. The LLRF system for Accumulator Ring (AR) is composed of two identical LLRF stations, for driving RF amplifiers. The closed loop RF amplitude and…

Quartz tuning fork-based atomic force microscopy (QTF-AFM) has become a powerful tool for high-resolution imaging of both conductive and insulating samples, including semiconductor structures and metal-coated surfaces as well as soft matter…

Mesoscale and Nanoscale Physics · Physics 2026-01-26 Hankyul Koh , Joon-Hyuk Ko , Wonho Jhe

Suppression of beam losses is essential for successful operation of high-intensity linac. Historically, the values of the field amplitudes and phases of the side-coupled, 805-MHz LANSCE linac modules are maintained using a well-known…

Accelerator Physics · Physics 2020-02-26 Y. K. Batygin , F. E. Shelley , H. A. Watkins

Test beam and irradiation facilities are the key enabling infrastructures for research in high energy physics (HEP) and astro-particles. In the last 11 years the Beam-Test Facility (BTF) of the DA{\Phi}NE accelerator complex in the Frascati…

The primary purpose of the Fermilab Recycler Ring Transverse Digital Damper System is to prevent instabilities due to high phase space densities of the cooled antiproton beam. The system was designed to facilitate Beam Transfer Function…

Accelerator Physics · Physics 2008-12-18 N. Eddy , J. L. Crisp , M. Hu

The S-band linear accelerator, which was built to be the source of particles and the front end of the Advanced Photon Source injector, is now also being used to support a low-energy undulator test line (LEUTL) and to drive a free-electron…

Accelerator Physics · Physics 2007-05-23 T. L. Smith , M. H. Cho , A. E. Grelick , G. Pile , A. Nassiri , N. Arnold

A collaboration between Fermilab and the Institute for High Energy Physics (IHEP), Beijing, has developed a beam position monitor for the IHEP test beam facility. This telescope is based on 5 stations of silicon strip detectors having a…

Instrumentation and Detectors · Physics 2011-01-27 R. Angstadt , W. Cooper , M. Demarteau , J. Green , S. Jakubowski , A. Prosser , R. Rivera , M. Turqueti , M. Utes , Xiao Cai

The readout electronics for the resonant beam position monitors (BPMs) in the Fermilab Switchyard (SY) have been upgraded, utilizing a low noise amplifier transition board and Fermilab designed digitizer boards. The stripline BPMs are…

Accelerator Physics · Physics 2017-01-05 T. Petersen , J. Diamond , N. Liu , P. S. Prieto , D. Slimmer , A. Watts

This contribution introduces a novel test system developed to evaluate the signal transmission quality in high-speed data links for the 2026 Inner Tracker (ITk) upgrade of the ATLAS experiment. Using an FPGA-based data acquisition (DAQ)…

Instrumentation and Detectors · Physics 2025-03-17 F. Ustuner , A. C. Mullins , S. Eisenhardt , M. Kocian , D. Su , M. Wittgen , A. Young