A Tutorial on Beam Loss Monitoring

Shafer, Robert E.

doi:10.1063/1.1524391

Cited by 8 publications

(4 citation statements)

References 4 publications

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“…Beam loss monitors (BLMs) have three main uses in particle accelerators: Damage prevention, diagnostics and machine optimisation [149]. The job of the BLM system is to establish the number of lost particles at a certain position within a specified time interval.…”

Section: Beam Loss Monitoringmentioning

confidence: 99%

Accelerator Engineering and Technology: Accelerator Technology

Bordry

Bottura

Milanese

et al. 2020

Particle Physics Reference Library

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Magnets are at the core of both circular and linear accelerators. The main function of a magnet is to guide the charged particle beam by virtue of the Lorentz force, given by the following expression: F = q v × B, (8.1) where q is the electrical charge of the particle, v its velocity, and B the magnetic field induction. The trajectory of a particle in the field depends hence on the particle Coordinated by F. Bordry

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Section: Beam Loss Monitoringmentioning

confidence: 99%

Accelerator Engineering and Technology: Accelerator Technology

Bordry

Bottura

Milanese

et al. 2020

Particle Physics Reference Library

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“…Detailed information about beam loss detection can be found in Refs. [154][155][156] together with the report in these proceedings [157].…”

Section: Tune Measurementsmentioning

confidence: 99%

“…There are several considerations in selecting the appropriate type of beam loss monitor, see e.g., Ref. [155]. Monitors typically in use are gas ionization chambers, PIN diodes, photomultipliers with scintillators, and secondary emission tubes [156] In order to increase the sensitivity and discriminate against wanted signals, the loss monitor system can be optimized by locating the monitors as close as possible to the superconducting coils, i.e., inside the cold mass in a superfluid helium environment.…”

Section: -Synchrotron Radiation Monitorsmentioning

confidence: 99%

Beam Diagnostic Requirements: an Overview

Kube

2020

Preprint

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Beam diagnostics and instrumentation are an essential part of any kind of accelerator. There is a large variety of parameters to be measured for observation of particle beams with the precision required to tune, operate, and improve the machine. In the first part, the basic mechanisms of information transfer from the beam particles to the detector are described in order to derive suitable performance characteristics for the beam properties. However, depending on the type of accelerator, for the same parameter, the working principle of a monitor may strongly differ, and related to it also the requirements for accuracy. Therefore, in the second part, selected types of accelerators are described in order to illustrate specific diagnostics needs which must be taken into account before designing a related instrument.

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“…As can be seen in the figure, the loss monitors were registering losses well before the quench occurred and could have pulled the abort much sooner than the QPM which eventually aborted the beam after the quench. Unfortunately, the original BLM system [2]- [5] was not enabled in the abort system when the Tevatron was at maximum energy since it had a non-negligible probability of generating false aborts. False aborts are a problem for the Tevatron because it uses antiprotons as one of the colliding particles and antiproton production is a relatively slow process (12 hours or more).…”

Section: Introductionmentioning

confidence: 99%

The upgraded data acquisition system for beam loss monitoring at the Fermilab Tevatron and Main Injector

Baumbaugh

Briegel²,

Brown³

et al. 2011

J. Inst.

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A VME-based data acquisition system for beam-loss monitors has been developed and is in use in the Tevatron and Main Injector accelerators at the Fermilab complex. The need for enhanced beam-loss protection when the Tevatron is operating in collider-mode was the main driving force for the new design. Prior to the implementation of the present system, the beam-loss monitor system was disabled during collider operation and protection of the Tevatron magnets relied on the quench protection system. The new Beam-Loss Monitor system allows appropriate abort logic and thresholds to be set over the full set of collider operating conditions. The system also records a history of beam-loss data prior to a beam-abort event for post-abort analysis. Installation of the Main Injector system occurred in the fall of 2006 and the Tevatron system in the summer of 2007. Both systems were fully operation by the summer of 2008. In this paper we report on the overall system design, provide a description of its normal operation, and show a number of examples of its use in both the Main Injector and Tevatron.

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A Tutorial on Beam Loss Monitoring

Abstract: Abstract. The beam loss monitoring system is one of the two most widely distributed beam diagnostic systems at most particle accelerator facilities. This tutorial reviews the characteristics of the ionizing radiation from beam losses, and the properties of beam loss radiation detectors.

Cited by 8 publications

References 4 publications

Accelerator Engineering and Technology: Accelerator Technology

Accelerator Engineering and Technology: Accelerator Technology

Beam Diagnostic Requirements: an Overview

The upgraded data acquisition system for beam loss monitoring at the Fermilab Tevatron and Main Injector

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