Conveners
F4: Beam Instrumentation & Luminosity
- Akira Yamamoto (KEK)
The high-luminosity upgrade of the LHC (HL-LHC) brings unprecedented requirements for precision bunch-by-bunch online luminosity measurement and beam-induced background monitoring with 1 second time granularity, creating the need for new high-precision instrumentation at CMS. A key component of the CMS Beam Radiation Instrumentation and Luminosity system is a stand-alone luminometer, the Fast...
High Energy Photon Source (HEPS) is a high-performance and high-energy synchrotron radiation light source with a beam energy of 6GeV and an ultra-low emittance of better than 0.06nm.rad. HEPS will be the first high-energy synchrotron radiation light source in China. It will make many contributions to the development of science and technology in China. This light source can provide essential...
We describe a system used for online measurements of luminosity, utilizing elastic $e^+e^-$ Bhabha scattering and two-photon annihilation processes reconstructed with the Belle II electromagnetic calorimeter. The Belle II experiment at the SuperKEKB asymmetric-energy $e^+e^-$ collider is designed to achieve a luminosity of $6\times10^{35}~\text{cm}^{-2}\text{s}^{-1}$. With the designed...
Abstract. Precise measurements of luminosity play a crucial role in the ATLAS physics programme at the LHC, in particular for cross section measurements, where it can be one of the largest systematic uncertainties. The Tile Calorimeter of the ATLAS experiment plays an important role in these measurements due to its luminosity measurements being independent of pileup. The comparison of LUCID...
A promising diagnostic system for circulating beams based on microchannel plates (MCP) is presented in the framework of implementation of the NICA project. The profile monitors developed, manufactured and tested in Nuclotron and Booster provide measurements in a range of intensities of single-charged ions from 10$^{3}$ to 10$^{8}$ which is not covered by other existing measurement equipment....
