The<b>P̄ANDA</b>Focussing-Lightguide Disc DIRC

Cowie, E.; Föhl, K.; Glazier, D. I.; Hill, G.; Hoek, M.; Kaiser, R.; Keri, T.; Murray, M.; Rosner, G.; Seitz, B.

doi:10.1088/1748-0221/4/09/p09006

Cited by 7 publications

(5 citation statements)

References 18 publications

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“…128 optical elements (minus 8 for mechanical support space) each 40 mm to 50 mm wide circle the rim, the focal plane length in dispersive direction is 48 mm to 50 mm long. For details regarding the implementation in the PANDA experiment please see [12]. Further papers address technological questions such as radiation hardness of the radiator materials [13] and suitable photon detectors [14].…”

Section: Implementation At Pandamentioning

confidence: 99%

The focussing light guide disc DIRC design

Föhl¹,

Brodski²,

Düren³

et al. 2009

J. Inst.

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For the PANDA experiment at the future FAIR facility, charged particle identification is of major importance, and hence one foresees a DIRC detector with a circular radiator disc placing the optical elements for photon readout around the disc rim. To improve detector performance beyond the established BaBar DIRC the design presented here implements focussing optics and chromatic dispersion correction. A simplified disc DIRC at WASA shall serve a dual purpose. For the WASAatCOSY experiment itself the DIRC velocity measurement provides an improved energy resolution. For PANDA this WASA-DIRC is a real-experiment prototype validating essential design parts, and beyond the minimum design can act as a test bench for PANDA technology.

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Section: Implementation At Pandamentioning

confidence: 99%

The focussing light guide disc DIRC design

Föhl¹,

Brodski²,

Düren³

et al. 2009

J. Inst.

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“…To meet the TORCH requirements, the photodetectors require a very good intrinsic time resolution (20-30 ps), low dark noise, spatial granularity (at the anode), along with a high active to dead area ratio. Micro-Channel Plate photomultiplier (MCP-PMT) technology (for review, see [16]) meets these requirements and has also been adopted by other DIRC-type detectors [4,17]. The main drawbacks are the relatively low detection efficiency compared to alternative technologies, a limitation on the lifetime, and the restricted granularity of commercial devices.…”

Section: Torch Photodetectorsmentioning

confidence: 99%

Testbeam studies of a TORCH prototype detector

Brook

García

Conneely

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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TORCH is a novel time-of-flight detector that has been developed to provide charged-particle identification between 2 and 10 GeV/c momentum. TORCH combines arrival times from multiple Cherenkov photons produced within a 10 mm-thick quartz radiator plate, to achieve a 15 ps time-of-flight resolu-* Corresponding author. those using a commercial Planacon MCP-PMT, and single photon resolutions approaching 80 ps have been achieved. The photon counting efficiency was found to be in reasonable agreement with a GEANT4 Monte Carlo simulation of the detector. The small-scale demonstrator is a precursor to a full-scale TORCH module (with a radiator plate of 660 × 1250 × 10 mm 3 ), which is currently under construction.

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“…3(a)) [4] are to measure velocities of charged particles precisely and to separate kaons from pions. This new detector concept will combine a disc as radiator, passive dispersion correction with LiF bars and focusing optical elements for compactness.…”

Section: The Novel Focusing Disc Dircmentioning

confidence: 99%

“…One of the proposed particle identification detectors is the FDD (Focusing Disc DIRC) [4]. This novel design is based on DIRC (Detection of total-Internally-Reflected Cherenkov light) using a thin synthetic silica disc as a radiator and LiF (Lithium Floride) bars for passive dispersion correction.…”

Section: Introductionmentioning

confidence: 99%