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Various methods of phase and power control in magnetron RF sources of superconducting accelerators intended for ADS-class projects were recently developed and studied with conventional 2.45 GHz, 1 kW, CW magnetrons operating in pulsed and…

Accelerator Physics · Physics 2018-03-26 G. Kazakevich , R. Johnson , M. Neubauer , V. Lebedev , W. Schappert , V. Yakovlev

We present a programmable time alignment scheme used in an ASIC for the ATLAS forward muon trigger development. The scheme utilizes regenerated clocks with programmable phases to compensate for the timing offsets introduced by different…

Instrumentation and Detectors · Physics 2017-08-08 Jinhong Wang , Liang Guan , John W Chapman , Bing Zhou , Junjie Zhu

The development of high gradient accelerating structures is one of the leading activities of the accelerator community. In the technological research of new construction methods for these devices, high-power testing is a critical step for…

Accelerator Physics · Physics 2022-07-11 V. A. Dolgashev , L. Faillace , M. Migliorati , B. Spataro

China spallation neutron source(CSNS) is a high intensity proton accelerator based facility, and its accelerator complex includes two main parts: an H- linac and a rapid cycling synchrotron(RCS). The rcs accumulates the 80MeV proton beam,…

Accelerator Physics · Physics 2013-07-16 Liu Renhong , Zhang Junsong , Qu Huamin , Kang Ling , Wang Motuo , Wang Guangyuan , Wang Haijing

This paper considers a hybrid reconfigurable intelligent surface (RIS) assisted integrated sensing and communication (ISAC) system, where each RIS element can flexibly switch between the active and passive modes. Subject to the…

Information Theory · Computer Science 2024-12-06 Yingbin Lin , Feng Wang , Xiao Zhang , Guojun Han , Vincent K. N. Lau

The wire method is a more rapid and less costly method to measure impedances of RF components compared to methods using a beam. A setup using a single displaced wire to excite and measure transverse resonant modes in accelerating structures…

Accelerator Physics · Physics 2008-11-26 N. Baboi , G. B. Bowden , R. M. Jones , S. G. Tantawi , J. R. Lewandowski

Radio telescopes that employ arrays of many antennas are in operation, and ever larger ones are being designed and proposed. Signals from the antennas are combined by cross-correlation. For $N$ antennas, the cost and power consumption of…

Instrumentation and Methods for Astrophysics · Physics 2016-04-19 Larry R. D'Addario , Douglas Wang

(Abridged version) The CMS experiment at the LHC will begin operation in 2007. The CMS Tracker sub-detector, comprises ~10 million detector channels read out by ~40 000 analog optical links. The optoelectronic components have been designed…

Instrumentation and Detectors · Physics 2010-05-03 Stefanos Dris

As the second stage of the CEPC-SPPC project, SPPC (Super Proton-Proton Collider) aims at exploring new physics beyond the Standard Model. The key design goal for the SPPC accelerator complex is to reach 75 TeV in center of mass energy with…

Accelerator Physics · Physics 2021-04-28 L. H. Zhang , J. Y. Tang , Y. Hong , Y. K. Chen , L. J. Wang

As the pre-injector of the LHC injector chain, the proton linac at CERN is required to provide a high-intensity (180mA) beam to the Proton Synchrotron Booster. The results of measurements at this intensity will be presented. Furthermore,…

Accelerator Physics · Physics 2007-05-23 C. E. Hill , A. Lombardi , R. Scrivens , M. Vretenar , A. Feschenko , A. Liou

A 325 MHz aluminum prototype of a spatially periodic rf quadrupole focusing linac was developed at the Institute of Modern Physics, Chinese Academy of Sciences, as a promising candidate for the front end of a high-current linac. It consists…

Accelerator Physics · Physics 2021-01-18 Peiyan Yu , Bin Zhang , Fengfeng Wang , Chenxing Li , Guozhen Sun , Zhijun Wang , Lubei Liu , Chenzhang Yuan , Yuan He , Hushan Xu

Integrated sensing and communication (ISAC) capability is envisioned as one key feature for future cellular networks. Classical half-duplex (HD) radar sensing is conducted in a "first-emit-then-listen" manner. One challenge to realize HD…

Information Theory · Computer Science 2023-09-08 Yuan Guo , Yang Liu , Qingqing Wu , Xiaoyang Li , Qingjiang Shi

The continue wave (CW) high current proton linac has wide applications as the front end of the high power proton machines. The low energy part is the most difficult one and there is no widely accepted solution yet. Based on the analysis of…

Accelerator Physics · Physics 2015-07-14 Zhihui Li

Project-X is the proposed high intensity proton facility to be built at Fermilab, US. Its Superconducting Linac, to be used at first stage of acceleration, will be operated in continuous wave (CW) mode. The Linac is divided into three…

Accelerator Physics · Physics 2012-02-27 A. Saini , K. Ranjan , N. Solyak , S. Mishra , V. Yakovlev

Proton-proton collisions at sqrt{s} = 7 TeV and heavy ion collisions at sqrt{s_NN} = 2.76 TeV were produced by the LHC and recorded using the ATLAS experiment's trigger system in 2010. The LHC is designed with a maximum bunch crossing rate…

High Energy Physics - Experiment · Physics 2012-08-27 The ATLAS Collaboration

We summarize the current state of a concept for muon acceleration aimed at a future Neutrino Factory. The main thrust of these studies was to reduce the overall cost while maintaining performance by exploring the interplay between the…

Accelerator Physics · Physics 2018-03-14 S. Alex Bogacz

ATLAS LAr calorimeter will perform its Phase-I upgrade during the long shut down (LS2) in 2018, a new LAr Trigger Digitizer Board (LTDB) will be designed and installed. Several commercial-off-the-shelf (COTS) multichannel high-speed ADCs…

Instrumentation and Detectors · Physics 2016-11-23 Hongbin Liu , Hucheng Chen , Kai Chen , James Kierstead , Francesco Lanni , Helio Takai , Ge Jin

The Advanced Light Source (ALS) at LBNL is upgrading several LLRF systems for its Linac and Sub-Harmonic Bunchers, where it is desired to have a unified LLRF system design to support various RF frequencies (at 125MHz, 500MHz and 3GHz) and…

The LHC Phase-II upgrade will lead to a significant increase in luminosity, which in turn will bring new challenges for the operation of inner tracking detectors. A possible solution is to use active silicon sensors, taking advantage of…

In order to update the beam power from 100 kW to 250 kW in China spallation neutron source (CSNS) Phase II, one of the important measures is to replace the 80 meters long beam transport line between the present 80 MeV linac injector and the…

Accelerator Physics · Physics 2015-07-14 LI Zhi-Hui , FU Shi-Nian