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Next-generation particle accelerators demand advanced beam-diagnostic capabilities to ensure high performance, operational reliability, and sustainable machine operation. Increasing beam intensities and stored energies make the precise…

Accelerator Physics · Physics 2026-03-10 Francis René Osswald , Mohammed Chahbaoui , Xinyi Liang

The design of the proposed linear collider TESLA is based on 9-cell 1.3 GHz superconducting niobium cavities, operated in pulsed mode. Within the framework of an international collaboration the TESLA Test Facility (TTF) has been set up at…

Accelerator Physics · Physics 2007-05-23 M. Liepe

Maximum amplitudes of accelerating fields are restricted by electron breakdown and Joule heating losses in conducting walls in traditional accelerating structures. In this paper, we presented a resonant composite accelerating cavity, which…

Accelerator Physics · Physics 2015-08-31 TianXiu-fang , Zhang Jiandong , Xun Deguo , Liu Kun , Hou yong , Cheng Jian

This manuscript describes a radiation-hardened current-mode delta-sigma ADC fabricated in a standard 130 nm CMOS technology and qualified for total ionizing doses up to 100 Mrad. The operational signal range achieved with a 100 s…

Instrumentation and Detectors · Physics 2026-03-05 Luca Giangrande

Dirac-like band crossings are paradigms in condensed matter systems to emulate high-energy physics phenomena. They are associated with two aspects: gap and tilting. The ability to design sign-changing gap gives rise to band topology,…

Mesoscale and Nanoscale Physics · Physics 2025-01-22 Amir Youssefi , Ahmad Motavassal , Shingo Kono , Seyed Akbar Jafari , Tobias J. Kippenberg

We present the design of a high repetition rate MeV energy ultrafast electron diffraction instrument based on a DC photoelectron gun and an SRF linac with multiple independently controlled accelerating and bunching cavities. The design is…

Accelerator Physics · Physics 2022-10-05 Adam Bartnik , Colwyn Gulliford , Georg H. Hoffstaetter , Jared Maxson

An ultracold electron source based on near-threshold photoionization of a laser-cooled and trapped atomic gas is presented in this work. Initial DC acceleration to $\sim$10 keV and subsequent acceleration of the created bunches to 100 keV…

Accelerator Physics · Physics 2023-07-07 D. F. J. Nijhof , P. H. A. Mutsaers , O. J. Luiten

A CW-compatible, pulsed H- superconducting linac "PIP-II" is being planned to upgrade Fermilab's injection complex. To validate the front-end concept, a test accelerator (The PIP-II Injector Test, formerly known as "PXIE") is under…

The Compact Linear Collider (CLIC) is a multi-TeV high-luminosity linear e$^+$e$^-$-collider under development by the CLIC accelerator collaboration, hosted by CERN. The CLIC accelerator has been optimised for three energy stages at…

Superconducting rf technology (SRF) is evolving rapidly as are its applications. While there is active exploitation of what one may term the current state-of-the-practice, there is also rapid progress expanding in several dimensions the…

Accelerator Physics · Physics 2017-08-23 Charles E. Reece , Gianluigi Ciovati

The Low-Level RF (LLRF) control circuits of linear accelerators (LINACs) are conventionally realized with heterodyne based architectures, which have analog RF mixers for up and down conversion with discrete data converters. We have…

Accelerator Physics · Physics 2024-08-23 Chao Liu , Ryan Herbst , Larry Ruckman , Emilio Nanni

Parametric transducers, such as superconducting rf cavities, can boost the bandwidth and sensitivity of the next generation resonant antennas, thanks to a readily available technology. We have developed a fully coupled dynamic model of the…

General Relativity and Quantum Cosmology · Physics 2009-11-11 R. Ballantini , M. Bassan , A. Chincarini , G. Gemme , R. Parodi , R. Vaccarone

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

The CSR-LINAC injector has been proposed in Heavy Ion Research Facility in Lanzhou (HIRFL). The linac mainly consists of two parts, the RFQ and the IH-DTL. The KONUS (Kombinierte Null Grad Struktur) concept has been introduced into the DTL…

Accelerator Physics · Physics 2013-06-21 Zhang Xiao-Hu , Yuan You-Jin , Xia Jia-Wen , Yin Xue-Jun , Du Heng

In the framework of the upgrade of the SPARC_LAB facility at INFN-LNF, named EuPRAXIA@SPARC_LAB, a high gradient linac is foreseen. One of the most suitable options is to realize it in X-band. A preliminary design study of both accelerating…

The upgraded Facility for Advanced Accelerator Experimental Tests (FACET-II) at SLAC National Accelerator Laboratory has been designed to deliver ultra-relativistic electron and positron beams with unprecedented parameters, especially in…

The upgrade of the ISOLDE machine at CERN foresees a superconducting linac based on two gap independently phased Nb sputtered Quarter Wave Resonators (QWRs) working at 101.28MHz and producing an accelerating field of 6MV/m on axis. A…

Accelerator Physics · Physics 2009-10-05 A. D'Elia , R. M. Jones , M. Pasini

The China Accelerator Driven Sub-critical System (CADS) is a high intensity proton facility to dispose of nuclear waste and generate electric power. CADS is based on 1.5GeV, 10mA CW superconducting (SC) linac as a driver. The high-energy…

Accelerator Physics · Physics 2016-03-23 Wen Liangjian , Zhang Shenghu , Li Yongming , Wang Ruoxu , Guo Hao , Zhang Cong , Jia Huan , Jiang Tiancai , Li Chunlong , He Yuan

Low Level RF (LLRF) control systems of linear accelerators (LINACs) are typically implemented with heterodyne based architectures, which have complex analog RF mixers for up and down conversion. The Gen 3 Radio Frequency System-on-Chip…

Accelerator Physics · Physics 2024-05-15 C. Liu , R. Herbst , B. Hong , L. Ruckman , E. A. Nanni

Dark Energy studies with type Ia supernovae set very tight constraints on the photometric calibration of the imagers used to detect the supernovae and follow up their flux variations. Among the key challenges is the measurement of the shape…

Instrumentation and Methods for Astrophysics · Physics 2012-09-03 N. Regnault , E. Barrelet , A. Guyonnet , C. Juramy , P. -F. Rocci , L. Le Guillou , K. Schahmanèche , F. Villa