High-performance DIRC detector for use in an Electron-Ion Collider

Allison, L. J.; Cao, T.; Dzhygadlo, R.; Horn, T.; Hyde, Charles; Illieva, Yordanka; Kalicy, G.; Nadel-Turoński, P.; Park, Kijun; Peters, K.; Schwarz, C.; Schwiening, J.; Stevens, J. R.; Xi, Wenze; Zorn, C.

doi:10.22323/1.282.0300

Cited by 2 publications

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“…Obviously the focal plane of the 2-layer lens is highly parabolic in shape, whereas the 3-layer lens focal plane is relatively flat, allowing for a better resolution of the Cherenkov angle. Prototype 3-layer lens built for optical testing (a), and an exploded view of each layer with dimensions (b)[29].…”

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R&D of a high-performance DIRC detector for a future electron-ion collider

Allison

2017

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An Electron-Ion Collider (EIC) is proposed as the next big scientific facility to be built in the United States, costing over $1 billion in design and construction. Each detector concept for the electron/ion beam interaction point is integrated into a large solenoidal magnet. The necessity for excellent hadronic particle identification (pion/kaon/proton) in the barrel region of the solenoid has pushed research and development (R&D) towards a new, high-performance Detection of Internally Reflected Cherenkov light (DIRC) detector design. The passage of a high energy charged particle through a fused silica bar of the DIRC generates optical Cherenkov radiation. A large fraction of this light propagates by total internal reflection to the end of the bar, where the photon trajectories expand in a large volume before reaching a highly segmented photo-detector array. The spatial and temporal distribution of the Cherenkov light at the photo-detector array allows one to reconstruct the angle of emission of the light relative to the incident charged particle track. In order to reach the desired performance of 3σ π/K separation at 6 GeV/c particle momentum a new 3-layer spherical lens focusing optic with a lanthanum crown glass central layer was designed to have a nearly flat focal plane. In order to validate the EIC DIRC simulation package, a synergistic test beam campaign was carried out in 2015 at the CERN PS with the PANDA Barrel DIRC group using a prototype DIRC detector. Along with the analysis of the CERN test beam data, measurements of the focal plane of the 3-layer lens were performed using a custom-built laser setup at Old Dominion University. Radiation hardness of the lanthanum crown glass was tested using a 160 keV X-ray source and a monochromator at the Catholic University of America. Results of these test-bench experiments and the analysis of the 2015 CERN test beam data are presented here.iii

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“…Laser setup at Old Dominion University for testing the optical properties of the 3-layer lens design. A schematic drawing of the setup is shown on the left, and a closeup view of the lens and screen inside the actual setup is shown on the right [29]…”

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R&D of a high-performance DIRC detector for a future electron-ion collider

Allison

2017

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Advances in nuclear detection and readout techniques

He,

Niu,

Wang

et al. 2023

NUCL SCI TECH

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Abstract“A Craftsman Must Sharpen His Tools to Do His Job,” said Confucius. Nuclear detection and readout techniques are the foundation of particle physics, nuclear physics, and particle astrophysics to reveal the nature of the universe. Also, they are being increasingly used in other disciplines like nuclear power generation, life sciences, environmental sciences, medical sciences, etc. The article reviews the short history, recent development, and trend of nuclear detection and readout techniques, covering Semiconductor Detector, Gaseous Detector, Scintillation Detector, Cherenkov Detector, Transition Radiation Detector, and Readout Techniques. By explaining the principle and using examples, we hope to help the interested reader underst and this research field and bring exciting information to the community.

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High-performance DIRC detector for use in an Electron-Ion Collider

Cited by 2 publications

References 4 publications

R&D of a high-performance DIRC detector for a future electron-ion collider

R&D of a high-performance DIRC detector for a future electron-ion collider

Advances in nuclear detection and readout techniques

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