Tag

Detectors

All articles tagged with #detectors

science9 days ago•8 min saved

Chasing Ghost Particles: How Giant Detectors Unveil Neutrinos

From Pauli’s proposal to a lineage of colossal underground, underwater, and under-ice detectors, scientists have built ever-larger traps to catch neutrinos. Early solar-neutrino measurements at Homestake sparked a long puzzle that was resolved by experiments like Kamiokande, Super-Kamiokande, and SNO, which revealed neutrino oscillations and mass. Today, IceCube, KM3NET, Borexino, JUNO, Hyper-Kamiokande, and DUNE continue the hunt, probing neutrino properties across the cosmos and Earth with unprecedented precision.

via WIRED|

#detectors #neutrino-oscillations #neutrinos

science1 month ago•6 min saved

LHC’s Big Upgrade Aims to Uncover Subtle Clues in the Higgs Frontier

The Large Hadron Collider is entering a multi-year shutdown to become the High-Luminosity LHC, expected to start around 2030 with about seven times more data. This upgrade focuses on replacing detectors with faster, more precise, radiation-hard silicon trackers and adding precision timing to disentangle complex collision events. The goal is to probe Higgs boson properties with unprecedented precision—including rare decays like Higgs to muons or charm quarks and Higgs self-coupling—potentially revealing physics beyond the Standard Model and offering new insights into dark matter and the matter–antimatter imbalance.

via Gizmodo|

#detectors #higgs-boson #high-luminosity-lhc

space1 month ago•7 min saved

Silent Messengers: Neutrinos Illuminate Hidden Galactic Explosions

Avi Loeb explains that neutrinos from Galactic supernovae penetrate interstellar dust and reveal explosions that optical observations often miss. The 1987 SN 1987A produced 24 neutrinos detected by Kamiokande-II, IMB, and Baksan, enabling estimates of the explosion’s energy and the newborn neutron star’s properties. Today’s and forthcoming detectors—Super-Kamiokande, JUNO, IceCube, Hyper-Kamiokande, and DUNE—could observe thousands to tens of thousands of events from a Milky Way supernova, allowing measurements of neutrino masses and oscillations as well as the neutron star’s mass, radius, and binding energy. Webb’s 2022 observations of a neutron-star signature in SN 1987A underscore the potential of neutrino astronomy for probing fundamental physics and stellar remnants.

via Avi Loeb – Medium|

#astrophysics #detectors #neutrinos

science11 months ago•2 min saved

Global Efforts Boost Black Hole Discoveries and Gravitational Wave Insights

Research on gravitational waves is rapidly advancing, with recent detector upgrades leading to a significant increase in observed events, including 128 new black hole and neutron star collisions, and promising future insights from the upcoming LISA satellite mission.

via extremetech.com|

#black-holes #cosmology #detectors

science-and-astronomy3 years ago•3 min saved

"New telescopes join LIGO in search for gravitational waves"

The LIGO-Virgo-KAGRA (LVK) Collaboration has begun Observation Run 4 (O4), the latest effort to detect gravitational waves with newly upgraded detectors. The collaboration combines four detectors on three continents: LIGO's two detectors, Virgo in Europe, and KAGRA in Japan. With upgraded sensitivity, the detectors can pick out weaker or more distant gravitational waves, allowing scientists to pick up more events and answer questions about where black holes tend to form. LVK's current schedule calls for O4 to run for 18 months, into 2025.

via Space.com|

#astronomy #black-holes #detectors

health3 years ago•8 min saved

Rising Carbon Monoxide Deaths Endanger Families.

Deaths from non-fire-related carbon monoxide poisoning have been on the rise, with 250 deaths related to consumer products in 2019, according to a report by the U.S. Consumer Product Safety Commission. Engine-driven tools and heating systems were the leading causes of these deaths. Carbon monoxide poisoning can cause severe injury or death in hours or even minutes, and survivors may experience long-term cognitive effects. Experts recommend regular maintenance and inspection of fuel-burning appliances, proper ventilation in enclosed spaces, and using carbon monoxide detectors to prevent poisoning.

via Fox News|

#carbon-monoxide-poisoning #detectors #health

science-and-technology3 years ago•11 min saved

"Revolutionizing Photon Detection with Self-Powered Perovskite Detectors"

Researchers have developed self-powered perovskite photon-counting detectors (PCDs) that can rival commercial silicon photomultipliers (SiPMs) for photon counting. The PCDs can collect gamma-ray spectra with better energy resolution than SiPMs and maintain performance at high temperatures up to 85°C. The photon-counting capability of perovskite PCDs is mainly determined by shallow traps, which can be reduced by grain-size enhancement and surface passivation using diphenyl sulfide, respectively. This greatly suppresses dark count rate, enabling much better response to weak light than SiPMs.

via Nature.com|

#detectors #grain-size-enhancement #perovskite

health-and-safety3 years ago•3 min saved

Carbon Monoxide Detectors Failing to Alert Users of Deadly Gas

Two brands of carbon monoxide detectors, GLBSUNION and CUZMAK, are failing to alert users when carbon monoxide is present, according to the U.S. Consumer Product Safety Commission. Both brands claim to detect dangerous levels of carbon monoxide and alert with a flashing red LED and a loud alarm pattern, but sensitivity tests showed they failed to alert when exposed to pre-determined concentrations of carbon monoxide. Consumers are urged not to purchase or sell these detectors, stop using them, dispose of them immediately, and install new, working detectors.

via WPBF West Palm Beach|

#carbon-monoxide #consumer-products #detectors

health-and-safety3 years ago•3 min saved

Carbon Monoxide Detectors Failing to Alert Users of Deadly Gas

via KETV Omaha|

#carbon-monoxide #consumer-products #detectors