EUSO-SPB2 Telescope Optics and Testing

Kungel, V.

doi:10.22323/1.395.0412

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…In the last decades, development of the technologies and production techniques has resulted in the convergence on specific systems capable of meeting these requirements, offering ample margin of improvement for future missions. Most of these systems have flown on space-born detectors (Tatiana [863], TUS [864], Mini-EUSO [47]), or on balloon-borne detectors (EUSO-Balloon [865][866][867], EUSO-SPB1 [868], EUSO-SPB2 [869], launch foreseen in 2023) and are thus in various stages of Technical Readiness Level. Optics design for UHECR detection fall in two broad categories: lens (refractive) and mirror (reflective).…”

Section: Space Based Detectors: the Final Frontiermentioning

confidence: 99%

Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers

Coleman,

Eser,

Mayotte

et al. 2022

Preprint

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Pin down the shower energy observable to use μ as a composition-only Reduce hadronic uncertainties interaction model E threshold (TBD) Other messengers Galactic * μ / em separation † * depending on analysis progress † depending on detector configuration• At least one next-generation experiment needs to be able to make high-precision measurements to explore new particle physics and measure particle rigidity on an event-by-event basis. Of the planned next-generation experiments, GCOS is the best positioned to meet this recommendation.• As a complementary effort, experiments with sufficient exposure ( 5 × 10 5 km 2 sr yr) are needed to search for Lorentz-invariance violation (LIV), SHDM, and other BSM physics at the Cosmic and Energy Frontiers, and to identify UHECR sources at the highest energies.• Full-sky coverage with low cross-hemisphere systematic uncertainties is critical for astrophysical studies. To this end, next generation experiments should be space-based or multi-site. Common sites between experiments are encouraged.• Based on the productive results from inter-collaboration and inter-disciplinary work, we recommend the continued progress/formation of joint analyses between experiments and with other intersecting fields of research (e.g., magnetic fields).• The UHECR community should continue its efforts to advance diversity, equity, inclusion, and accessibility. It also needs to take steps to reduce its environmental impacts and improve open access to its data to reduce the scientific gap between countries.vi

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Section: Space Based Detectors: the Final Frontiermentioning

confidence: 99%

Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers

Coleman,

Eser,

Mayotte

et al. 2022

Preprint

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“…The effective aperture area is reduced to 0.785 m 2 taking into account the shadowing from the camera, transmission losses from the corrector plate, and reflection/scattering losses at the mirror. A particularity of the telescope is its bi-focal optics, achieved by rotating the optical axis of the lower and upper row of mirrors 0.4 • relative to each other [47]. The bi-focal optics projects the image twice on the camera with a horizontal offset of 12 mm.…”

Section: Cherenkov Telescope Of Euso-spb2mentioning

confidence: 99%

Use of Silicon Photomultipliers in the Detectors of the JEM-EUSO Program

Bisconti

2023

Instruments

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The JEM-EUSO program aims to study ultra-high energy cosmic rays from space. To achieve this goal, it has realized a series of experiments installed on the ground (EUSO-TA), various on stratospheric balloons (with the most recent one EUSO-SPB2), and inside the International Space Station (Mini-EUSO), in light of future missions such as K-EUSO and POEMMA. At nighttime, these instruments aim to monitor the Earth’s atmosphere measuring fluorescence and Cherenkov light produced by extensive air showers generated both by very high-energy cosmic rays from outside the atmosphere and by neutrino decays. As the two light components differ in duration (order of microseconds for fluorescence light and a few nanoseconds for Cherenkov light) they each require specialized sensors and acquisition electronics. So far, the sensors used for the fluorescence camera are the Multi-Anode Photomultiplier Tubes (MAPMTs), while for the Cherenkov one, new systems based on Silicon PhotoMultipliers (SiPMs) have been developed. In this contribution, a brief review of the experiments is followed by a discussion of the tests performed on the optical sensors. Particular attention is paid to the development, test, and calibration conducted on SiPMs, also in view to optimize the geometry, mass, and weight in light of the installation of mass-critical applications such as balloon- and space-borne instrumentation.

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“…A special laser scan system was manufactured at RIKEN for testing the quality of lenses. It was used earlier for testing the quality of the EUSO-SPB2 corrector lens [52]. We expect that the optics performance will meet the requirements.…”

Section: Optical Systemmentioning

confidence: 99%

Status of the K-EUSO Orbital Detector of Ultra-High Energy Cosmic Rays

Климов¹,

Battisti²,

Белов³

et al. 2022

Universe

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K-EUSO (KLYPVE-EUSO) is a planned orbital mission aimed at studying ultra-high energy cosmic rays (UHECRs) by detecting fluorescence and Cherenkov light emitted by extensive air showers in the nocturnal atmosphere of Earth in the ultraviolet (UV) range. The observatory is being developed within the JEM-EUSO collaboration and is planned to be deployed on the International Space Station after 2025 and operated for at least two years. The telescope, consisting of ∼105 independent pixels, will allow a spatial resolution of ∼0.6 km on the ground, and, from a 400 km altitude, it will achieve a large and full sky exposure to sample the highest energy range of the UHECR spectrum. We provide a comprehensive review of the current status of the development of the K-EUSO experiment, paying special attention to its hardware parts and expected performance. We demonstrate how results of the K-EUSO mission can complement the achievements of the existing ground-based experiments and push forward the intriguing studies of ultra-high energy cosmic rays, as well as bring new knowledge about other phenomena manifesting themselves in the atmosphere in the UV range.

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EUSO-SPB2 Telescope Optics and Testing

Cited by 7 publications

References 5 publications

Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers

Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers

Use of Silicon Photomultipliers in the Detectors of the JEM-EUSO Program

Status of the K-EUSO Orbital Detector of Ultra-High Energy Cosmic Rays

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