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The Proton Improvement Plan-II (PIP-II) is a superconducting linear accelerator being built at Fermilab that will provide 800 MeV proton beam for neutrino production. The linac consists of a total of twenty-three (23) cryomodules of five…

Accelerator Physics · Physics 2023-07-18 William Soyars , Tomasz Banaszkiewicz , Ram Dhuley

The Proton Improvement Plan-II (PIP-II) is a major upgrade to the Fermilab accelerator complex, featuring a new 800-MeV Superconducting Radio-Frequency (SRF) linear accelerator (Linac) powering the accelerator complex to provide the world's…

Accelerator Physics · Physics 2023-08-23 A Martinez , J Creus Prats , W Soyars , R Dhuley , B Hansen , Y Jia , A Chakravarty , M Goyal , T Banaszkiewicz , P Duda , M Stanclik

The Linac Coherent Light Source (LCLS) at Stanford Linear Accelerator Center (SLAC) is in the process of being upgraded to a superconducting radio frequency (SRF) accelerator and renamed LCLS-II. This upgrade requires thirty five 1.3 GHz…

Accelerator Physics · Physics 2018-07-04 Andrew Dalesandro , Joshua Kaluzny , Arkadiy Klebaner

The Proton Improvement Plan-II (PIP-II) is a major upgrade to the Fermilab accelerator complex, featuring a new 800-MeV Superconducting Radio-Frequency (SRF) linear accelerator (LINAC) powering the accelerator complex to provide the world's…

Accelerator Physics · Physics 2023-08-23 M White , J Makara , S Ranpariya , L Pei , M Barba , J Subedi , J Dong , B Hansen , A E T Akintola , J Holzbauer , J Ozelis , S Chandrasekaran , V Roger

The Proton Improvement Plan-II (PIP-II) [1] has been developed at Fermilab to provide powerful proton beams to the laboratorys experiments. An 800-MeV superconducting linear accelerator-a centerpiece of the project-is currently under…

Accelerator Physics · Physics 2023-01-23 Igor Rakhno , Nikolai Mokhov , Igor Tropin , Sergei Striganov , Yury Eidelman

The PIP-II linac Cryogenic Distribution System (CDS) is characterized by extremely small heat inflows and robust mechanical design. It consists of a Distribution Valve Box (DVB), Intermediate Transfer Line, Tunnel Transfer Line, comprising…

Accelerator Physics · Physics 2024-08-21 T. Banaszkiewicz , M. Chorowski , P. Duda , M. Stanclik , R. Dhuley , A. Martinez , W. Soyars

The U.S. Particle Physics Project Prioritization Panel (P5) report encouraged the realization of Fermilab's Proton Improvement Plan II (PIP-II) to support future neutrino programs in the United States. PIP-II aims at enhancing the…

Accelerator Physics · Physics 2017-01-05 A. Vivoli

The Proton Improvement Plan II (PIP-II) at Fermilab is a program of upgrades to the injection complex. At its core is the design and construction of a CW compatible, pulsed H- SRF linac. To validate the concept of the front-end of such…

PIP-II is the Fermilab's flagship project for providing powerful, high-intensity proton beams to the laboratory's experiments. The heart of PIP-II is an 800-MeV superconducting linac accelerator. It will be located in a new tunnel with new…

Accelerator Physics · Physics 2018-06-18 L. Lari , F. Cerutti , L. S. Esposito , C. Baffes , S. J. Dixon , N. V. Mokhov , I. Rakhno , I. S. Tropin

The Proton Improvement Plan - II (PIP-II) injector linac is an 800 MeV superconducting H$^-$ linac, christened Linac2, that will replace the existing 400 MeV injector to the accelerator complex at Fermilab. The higher energy, intensity and…

Accelerator Physics · Physics 2026-05-12 S. Krishnagopal , M. Convery , J. Dey

Details on Final design for Cryogenic Electrical & Controls System for Fermilab' s next-gen particle accelerator PIP-II. Electrical Controls System includes instrumentation and controls of Cryogenics Distribution System and Cryomodules.…

Accelerator Physics · Physics 2025-09-22 Pratik Patel , Ram Dhuley , Ahmed Faraj , Alexander Martinez , Vrushank Patel , William Soyars , Sungwoon Yoon

PIP-II is an essential upgrade of the Fermilab complex that will enable the worlds most intense high-energy beam of neutrinos for the international Deep Underground Neutrino Experiment at LBNF and support a broad physics program at…

Accelerator Physics · Physics 2022-09-07 Abhishek Pathak , Eduard Pozdeyev

PIP-II is an 800 MEV superconducting linac that is in the initial acceleration chain for the Fermilab accelerator complex. The RF system consists of a warm front-end with an ion source, RFQ and buncher cavities along with 25 superconducting…

Accelerator Physics · Physics 2023-11-13 P. Varghese , B. Chase , E. Cullerton , S. Raman , S. Ahmed , P. Hanlet , D. Klepec

The Proton Improvement Plan II (PIP-II) at Fermilab is a program of upgrades to the injection complex. At its core is the design and construction of a CW-compatible, pulsed H- superconducting RF linac. To validate the concept of the…

Accelerator Physics · Physics 2015-11-05 L. Prost , M. Alvarez , R. Andrews , J. -P. Carneiro , B. Hanna , V. Scarpine , A. Shemyakin , R. D'Arcy , C. Wiesner

The Proton Improvement Plan II (PIP-II) project is an essential upgrade to Fermilab's particle accelerator complex to enable the world's most intense neutrino beam for LBNF/DUNE and a broad particle physics program for many decades to come.…

This paper presents the final physics design of the Proton Improvement Plan-II (PIP-II) at Fermilab, focusing on the linear accelerator (Linac) and its beam transfer line. We address the challenges in longitudinal and transverse lattice…

Accelerator Physics · Physics 2024-06-03 Abhishek Pathak , Arun Saini , Eduard Pozdeyev

The Cryogenic Division at Fermilab develops large-scale cryogenic systems for particle accelerators and superconducting magnet test facilities. To support design and diagnostics, a Python-based code was created to calculate pressure drops…

Accelerator Physics · Physics 2025-09-22 R Beckwith , R Bruce , S Koshelev

PIP-II is a superconducting linac that is in the initial acceleration chain for the Fermilab accelerator complex. The RF system consists of a warm front-end with an RFQ and buncher cavities along with 25 superconducting cryo-modules…

Accelerator Physics · Physics 2025-10-29 P. Varghese , S. Raman , M. Guran , L. Reyes , L. Doolittle , Q. Du , S. Murthy

Following the PIP-II 800 MeV Linac, Fermilab will need an accelerator that extends from that linac to the MI injection energy of ~8 GeV, completing the modernization of the Fermilab high-intensity accelerator complex. This will maximize the…

SPIRAL2 is a superconducting accelerator for protons, deuterons and heavy ions delivering a maximum beam power of 200 kW at 40 MeV (for deuteron beams). 26 superconducting quarter wave cavities are operated at 4.4 K, plunged in a liquid…

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