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

Климов, П. А.; Battisti, Matteo; Белов, А. А.; Bertaina, M.; Bianciotto, Marta; Blin-Bondil, S.; Casolino, M.; Ebisuzaki, Toshikazu; Fenu, Francesco; Fuglesang, C.; Marszał, W.; Neronov, A.; Parizot, E.; Picozza, P.; Plebaniak, Z.; Prévôt, G.; Sakaki, Minako; Sharakin, S.; Shinozaki, K.; Szabelski, J.; Takizawa, Y.; Trofimov, D. A.; Yashin, I. V.; Zotov, M. Yu.

doi:10.3390/universe8020088

Cited by 25 publications

(10 citation statements)

References 65 publications

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“…From then on, the JEM-EUSO Collaboration can move forward, as it is now ready for the success of a major UHECR space mission, along the lines proposed for the (currently suspended) K-EUSO mission [30] or the PO-EMMA mission [31].…”

Section: Discussionmentioning

confidence: 99%

“…9 (see also Cummings, this conference). Moreover, it benefits from several important improvements of the PDM, with new electronics and a third generation of ECs, more compact and more efficient, identical to those developed for the K-EUSO prototype [30]. The length of the GTU has also been reduced compared to previous JEM-EUSO missions, down to 1 μs instead of 2.5 μs.…”

Section: Euso-spb2mentioning

confidence: 99%

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The JEM-EUSO Program for UHECR Studies from Space

Parizot¹,

Casolino²,

Picozza³

et al. 2023

EPJ Web Conf.

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To take up the challenge of understanding the origin of the ultra-high-energy cosmic rays (UHECRs), new observational means appear necessary. The JEM-EUSO Collaboration has undertaken to open the space road to UHECR studies. For more than a decade, it has been developing a realistic program to measure the UHECRs from space with unprecedented aperture, together with complementary scientific objectives in a broader multidisciplinary context. Several intermediate missions have already been completed (on the ground: EUSO-TA; under stratospheric ballons: EUSO-Balloon and EUSO-SPB1; in space: TUS, and on-board the ISS: MINI-EUSO), and others are in preparation for flight (EUSO-SPB2), under review (K-EUSO: currently on hold), or proposed for the next decade (POEMMA). We report on the general status of the JEM-EUSO program, underlining that its technology has now reached operational maturity, and is ready for actual cosmic-ray shower detection from above.

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Section: Discussionmentioning

confidence: 99%

Section: Euso-spb2mentioning

confidence: 99%

The JEM-EUSO Program for UHECR Studies from Space

Parizot¹,

Casolino²,

Picozza³

et al. 2023

EPJ Web Conf.

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“…The principle of observation is based on the detection of UV light emitted by isotropic uorescence of atmospheric nitrogen excited by Extensive Air Showers (EASs) in Earths atmosphere and forward-beamed Cherenkov radiation reected at the Earths surface or at dense cloud tops. The JEM-EUSO program includes missions on ground (EUSO-TA [3]), on stratospheric balloons (EUSO-Balloon [4], EUSO-SPB1 [5], EUSO-SPB2 [6]), and from space (TUS [7], Mini-EUSO [8]) employing fluorescence detectors to demonstrate the feasibility of the UHECR observation from space and prepare for the large size missions K-EUSO [9] and POEMMA [10]. An updated overview of the JEM-EUSO program can be found in [11].…”

Section: Introductionmentioning

confidence: 99%

Implications of Mini-EUSO measurements for a space-based observation of UHECRs

Bertaina¹,

Barghini²,

Battisti³

et al. 2023

EPJ Web Conf.

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Mini-EUSO is the first mission of the JEM-EUSO program on board the International Space Station. It was launched in 2019 and it is currently located in the Russian section (Zvezda module) of the station and viewing our planet from a nadir-facing UV-transparent window. The instrument is based on the concept of the original JEM-EUSO mission and consists of an optical system employing two Fresnel lenses and a focal surface composed of 36 Multi-Anode Photomultiplier tubes, 64 channels each, for a total of 2304 channels with single photon counting sensitivity and an overall field of view of 44° × 44°. Mini-EUSO can map the night-time Earth in the near UV range (predominantly between 290 nm and 430 nm), with a spatial resolution of about 6.3 km and different temporal resolutions of 2.5 µ, 320 µs and 41 ms. Mini-EUSO observations are extremely important to better assess the potential of a space-based detector in studying Ultra-High Energy Cosmic Rays (UHECRs) such as K-EUSO and POEMMA. In this contribution we focus the attention on UV measurements, the observation of clouds and of certain categories of events that Mini-EUSO triggers with the shortest temporal resolution. We place them in the context of UHECR observations from space, namely the estimation of exposure and sensitivity to Extensive Air Showers.

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“…In addition to the prime objective of UHECR studies, a space-based detector will do several secondary studies due to the instrument's unique capacity of detecting very weak UV signals with extreme time-resolution around 1 s: meteors, Transient Luminous Events (TLE), bioluminescence, maps of human generated UV light, searches for Strange Quark Matter (SQM) and high-energy neutrinos, and more. The JEM-EUSO program includes several missions from ground (EUSO-TA [3]), from stratospheric balloons (EUSO-Balloon [4], EUSO-SPB1 [5], EUSO-SPB2 [6]), and from space (TUS [7], Mini-EUSO [8]) employing fluorescence detectors to demonstrate the feasibility of the UHECR observation from space and prepare for the large size missions K-EUSO [9] and POEMMA [10].…”

Section: Introductionmentioning

confidence: 99%

The Mini-EUSO telescope on board the International Space Station: first results in view of UHECR measurements from space

Bertaina¹,

Barghini²,

Battisti³

et al. 2023

Proceedings of 27th European Cosmic Ray Symposium — PoS(ECRS)

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Mini-EUSO is a telescope launched on board the International Space Station in 2019 and currently located in the Russian section of the station and viewing our planet from a nadir-facing UVtransparent window in the Zvezda module. The instrument is based on an optical system employing two Fresnel lenses and a focal surface composed of 36 Multi-Anode Photomultiplier tubes, 64 channels each, with single photon counting sensitivity and an overall field of view of 44 • . Main scientific objectives of the mission are the search for nuclearites and Strange Quark Matter, the study of atmospheric phenomena such as Transient Luminous Events, meteors and meteoroids, and the observation of sea bioluminescence. Mini-EUSO can map the night-time Earth in the near UV range (predominantly between 290 -430 nm), with a spatial resolution of about 6.3 km and different temporal resolutions of 2.5 s, 320 s and 41 ms. Mini-EUSO observations are extremely important to assess the potential of a space-based detector of Ultra-High Energy Cosmic Rays (UHECRs) such as K-EUSO and POEMMA. In this contribution we describe the detector and show preliminary results in the context of UHECR observations from space. In particular, it is shown that the typical UV nightglow background level is comparable to what was originally estimated for a space-based detector looking down to Earth. The adaptive trigger logic successfully keeps the spurious trigger rate at the designed level of ∼1 Hz in nominal conditions and in presence of quasi-static bright sources such as city lights. The logic triggers on UV transients in the s time scale due to anthropogenic light sources, such as flashers. These signals can clearly be distinguished from Extensive Air Shower (EAS) events by comparing them with simulated EASs. In addition, they demonstrate the capability of a large space-based detector such as K-EUSO or POEMMA to detect UHECRs above a few times 10 19 eV. The presence of clouds can be clearly recognized by the UV camera in many situations, which is helpful for the calculation of the exposure and for the determination of the atmospheric conditions in case of detection of an EAS. *** 27th European Cosmic Ray Symposium -ECRS *** *** 25-29 July 2022 *** *** Nĳmegen, the Netherlands ***

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

Cited by 25 publications

References 65 publications

The JEM-EUSO Program for UHECR Studies from Space

The JEM-EUSO Program for UHECR Studies from Space

Implications of Mini-EUSO measurements for a space-based observation of UHECRs

The Mini-EUSO telescope on board the International Space Station: first results in view of UHECR measurements from space

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