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Ionization profile monitors (IPMs) are widely used in particle accelerators for fast evaluation of parameters of high energy beams. Due to the space-charge effects and several other physical reasons, as well as due to instrumental effects,…

Accelerator Physics · Physics 2021-03-05 Vladimir Shiltsev

Ionization profile monitors (IPMs) are used in the Fermilab Main Injector (MI) to monitor injection lattice matching by measuring turn-by-turn sigmas at injection and to measure transverse emittance of the beam during the acceleration…

Ionization profile monitors (IPMs) are widely used in accelerators for non-destructive and fast diagnostics of high energy particle beams. Two such monitors - one vertical and one horizontal - are being developed for installation in the…

Accelerator Physics · Physics 2024-06-24 H. Piekarz , A. Romanov , R. Thurman-Keup , V. Shiltsev

The latest generation of IPMs installed in the Fermilab Main Injector and Recycler incorporate a 1 kG permanent magnet, a newly designed high-gain, rad-tolerant preamp, and a control grid to moderate the charge that is allowed to arrive on…

Accelerator Physics · Physics 2015-02-11 J. R. Zagel , M. Alvarez , B. Fellenz , C. Jensen , C. Lundberg , E. McCrory , D. Slimmer , R. Thurman-Keup , D. Tinsley

Measurements of transverse profiles using Ionization Profile Monitors (IPMs) for high brightness beams are affected by the electromagnetic field of the beam. This interaction may cause a distortion of the measured profile shape despite…

Accelerator Physics · Physics 2019-05-22 Dominik Vilsmeier , Mariusz Sapinski , Rahul Singh

One of the on-going issues with the use of microchannel plates (MCP) in the ionization profile monitors (IPM) at Fermilab is the significant decrease in gain over time. There are several possible issues that can cause this. Historically,…

Accelerator Physics · Physics 2023-10-05 R. Thurman-Keup , D. Slimmer , C. Lundberg , J. R. Zagel

The measurement of beam emittances by extracting the quadrupole mode signal from a 4 plate beam position monitor (BPM) was published at least 40 years ago. Unfortunately, in practice, this method suffers from poor signal to noise ratio and…

Accelerator Physics · Physics 2024-06-24 C. Y. Tan , M. Balcewicz

A high-performance Scintillator Ion Beam Monitor (SIBM) provides diagnostics across a range of isotopes, energies, and intensities employing a machine-vision camera with two novel scintillator targets movable into/out of the beam without…

Instrumentation and Detectors · Physics 2022-09-01 Daniel S Levin , Peter S. Friedman , Tom Ginter , Claudio Ferretti , Alexander Kaipainen , Nicholas Ristow

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

At the International Linear Collider (ILC), measurement of the beam profile at the interaction point (IP) is a key issue to achieve high luminosity. We studied the beam size measurement by combination of Pair Monitor and BeamCal. We…

Instrumentation and Detectors · Physics 2009-02-14 Kazutoshi Ito , Akiya Miyamoto , Tadashi Nagamine , Yutaro Sato , Yosuke Takubo , Toshiaki Tauchi , Hitoshi Yamamoto

The current program at Fermilab involves the construction of a new superconducting linear accelerator (LINAC) to replace the existing warm version. The new LINAC, together with other planned improvements, is in support of proton beam…

Accelerator Physics · Physics 2023-10-03 R. Thurman-Keup , T. Folan , M. Mwaniki , S. Sas-Pawlik

A beam profile monitor utilizing visible synchrotron radiation (SR) from a bending magnet has been designed and installed in Cornell Electron-Positron Storage Ring (CESR). The monitor employs a double-slit interferometer to measure both the…

Accelerator Physics · Physics 2014-05-30 S. T. Wang , D. L. Rubin , J. Conway , M. Palmer , D. Hartill , R. Campbell , R. Holtzapple

At the international linear collider, measurement of the beam profile at the interaction point is a key issue to achieve high luminosity. We report a simulation study on a new beam profile monitor, called the pair monitor, which uses the…

Instrumentation and Detectors · Physics 2015-05-13 Kazutoshi Ito , Akiya Miyamoto , Tadashi Nagamine , Toshiaki Tauchi , Hitoshi Yamamoto , Yosuke Takubo , Yutaro Sato

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

Beam position monitors (BPMs) are indispensable components of modern particle accelerators, providing real-time diagnostics to ensure precise beam control, stability, and quality. As accelerators such as the International Linear Collider…

In KEKB, synchrotron radiation interferometers (SRMs) are used for measuring the transverse beam sizes. There is also a tool for enlarging the vertical beam size intentionally by making an asymmetric bump, called an ``iSize'' bump, at one…

Accelerator Physics · Physics 2007-07-05 N. Iida , J. Flanagan , Y. Funakoshi , K. Oide

The energy of a bunched non-relativistic ion beam can be deduced from measuring the beam phases in neighbouring Beam Position Monitors (BPMs). This report discusses implementation of such a procedure at the PIP-II H- linac being constructed…

Accelerator Physics · Physics 2025-09-18 A. Shemyakin , J. Kuharik , R. Sharankova

The beam position monitor (BPM) system for Fermilab Switchyard (SY) provides the position, intensity and integrated intensity of the 53.10348 MHz RF bunched resonant extracted beam from the Main Injector over 4 seconds of spill. The total…

Accelerator Physics · Physics 2015-02-09 P. Stabile , J. S. Diamond , J. A. Fitzgerald , N. Liu , D. K. Morris , P. S. Prieto , J. P. Seraphin

The Fermilab Booster is being upgraded under the Proton Improvement Plan (PIP) to be capable of providing a proton flux of $2.25^{17}$ protons per hour. The intensity per cycle will remain at the present operational $4.3^{12}$ protons per…

Accelerator Physics · Physics 2015-11-05 K. Seiya , C. M. Bhat , D. E. Johnson , V. V. Kapin , W. A. Pellico , C. Y. Tan , R. J. Tesarek

The Beam Loss Monitors (BLM) are designed to measure the position and amount of beam loss in accelerators. In this article, we have studied the 3 GeV electron losses in the storage ring and secondary particles from the losses on the beam…

Accelerator Physics · Physics 2021-01-12 Seyed Morteza Esmaeili , Seyed Amir Hossein Feghhi
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