Conveners
Poster Session
- Noah Kurinsky (SLAC)
The inert-behavior, high nuclear mass, and scintillating properties of liquid Argon and Xenon make them attractive for use in a variety of sensitive experiments. However, great care must be taken to remove electronegative impurities which reduce light yield from scintillation, and degrade the resolution of ionization-charge imaging. An external purification circuit is generally beyond the of...
As X-ray micro-CT applications drive development of the next generation of detectors to offer larger and variable fields of view combined with micron scale pixel resolution and high conversion efficiency, a scalable hybrid X-ray detector technology is under development. Direct hybrid X-ray detectors using amorphous Selenium (a-Se) deposited on 3T CMOS readout ASICs have been demonstrated with...
The development of new detector technologies requires high-accuracy simulations of the fundamental underlying processes with simple, transparent tools that newcomers can rapidly learn. TOPAS [1] fully satisfies these requirements as a well-documented, extendable wrapper for Geant4. We have used TOPAS to simulate and develop two photodetector designs: a whole-body time-of-flight positron...
The High-Luminosity Large Hadron Collider (HL-LHC) is set to commence operations in 2029 and will reach unprecedented peak instantaneous luminosity values, resulting in 200 proton-proton interactions per bunch crossing. To cope with this challenging environment, the ATLAS Inner Detector will be replaced by an all-silicon system, the Inner Tracker (ITk). The inner most part of the ITk will...
The hypothesis of energy accumulation and release in materials allow an explanation for excess background events and noise spectra in different detectors and provides a general framework to analyze and deal with such phenomena: one needs to look at what states or defect can carry excess energy, how they can be produced in materials, how they interact, and how their production or interaction...
SLAC is pursuing a central role in advancing cryogenic-CMOS development across a spectrum of High-Energy Physics (HEP) experiments. These endeavors encompass diverse domains, including neutrino science through projects like DUNE and nEXO, as well as investigations in quantum computing and Cosmic Frontier research efforts. The latter involves Cosmic Microwave Background surveys,...
High performance dichroic filters (DFs) are key photon wavelength sorting devices for Cherenkov and scintillation light in water- and scintillator-based neutrino detectors. Future detectors such as THEIA and DUNE will require large-area DFs at a low cost and with improved transmissivity and reflective properties. DFs are traditionally manufactured by various physical vapor deposition (PVD)...
Novel detection methods for nuclear recoil (NR) imaging have the potential to allow one to resolve weak signatures from Coherent Elastic Neutrino Nucleus Scattering (CE$\nu$NS) as a method to probe an exciting frontier of attractive new physics. CE$\nu$NS is postulated to be a critical background to future dark matter (DM) searches and measurements of these interactions in LAr targets may...
In this study, we used a state of the art filtration machine to refine the filtration process for water-based liquids scintillators (WBLS). Our primary objective was to optimize the retention of gadolinium sulfate while concurrently eliminating optical contaminants. Through meticulous experimentation, we determined the precise filter size crucial for preserving the integrity of gadolinium...
The SPLENDOR (Search for Particles of Light Dark Matter with Narrow-gap Semiconductors) experiment is a search for light dark matter via the electron-recoil interaction channel, taking advantage of novel single-crystal narrow-bandgap (order 10-100 meV) semiconductors. Synthesized within the collaboration, the properties of these designer materials imply low dark counts when operated as...
We report on the status of the development of a SiPM incorporating an internal filter that has high sensitivity to the fast component (<0.6ns) of BaF2 scintillation light at 220nm, and substantial suppression of the slow component (650ns) at 300nm.
Interactions of states storing excess energy in a system with energy flow can lead to avalanche energy releases (Self-Organized Criticality scenario), to correlations in energy releases in luminescence, electron emission, and other complex dynamics. While processes of uncontrolled releases of stored energy led to quantum errors and decoherence in quantum computers, these processes and...
LArTPCs are the technology of choice for current and future neutrino experiments. This technology provides sensitivity to GeV signals like accelerator neutrinos down to the 10s of MeV, covering part of the supernova neutrino spectrum. Expanding the reach of LArTPCs to the 1-10 MeV range would substantially enhance the flagship analyses of experiments like DUNE, while enabling low-energy...
The radiopurity.org database has proven to be a valuable resource for the low background physics community as a tool to track and share assay results. This talk will describe recent collaborative efforts between the Pacific Northwest National Laboratory and SNOLAB to modernize the database for the community. Improvements to the search utility and data upload methods will be discussed....
M. Anil$^e$, G. Blazey$^b$, A. Dykant$^b$, J. Elam$^e$, M. Figora$^b$, T. Fletcher$^b$, K. Francis$^b$, C. Gatto$^{a*}$, C. Le Mahieu$^d$, S. Los$^c$, M. Murray$^d$, M. Nickel$^d$, E. Ramberg$^c$, C. Royon$^d$, R. Sheemanto$^f$,
M. Syhers$^b$, R. Young$^d$, Z. Ye$^g$, V. Zutshi$^b$
$^a$INFN ( Italy) and Northern Illinois University, USA
$^b$Northern Illinois University USA
$^c$Fermilab,...
The current ATLAS Inner detector will be replaced with a new all silicon Inner Tracker (ITK) to cope with the high density environment during High Luminosity LHC (HL-LHC). The innermost part of the ITK will comprise a state-of-the-art pixel detector. This pixel detector is built upon lightweight carbon structures in the shape of rings and staves, which host the pixel modules. Designing proper...
In light of upgrades such as the High Luminosity LHC (HL-LHC) and proposals for future collider experiments, continued development of particle tracking technology is crucial. Monolithic Active Pixel Sensors (MAPS) are established vertex detectors, which combine the readout electronics and sensitive volume in one sensor, providing excellent spatial resolution, while maintaining a low power...
The Phase-2 upgrades of ATLAS and CMS for the High-Luminosity LHC (HL-LHC), require a new tracker with robust readout electronics capable of withstanding extreme radiation (1 Grad), a high hit rate (3 GHz/cm2), and a high data rate readout (5 Gb/s). In a joint effort between ATLAS and CMS, pixel detector readout chips have been designed by the RD53 collaboration in 65 nm CMOS technology. Based...
The lead tungstate crystals (PbWO4) are a well-known radiator material for precise homogeneous electromagnetic calorimetry. In nuclear physics experiments, the typical way to read out the crystals is using conventional photomultiplier tubes (PMTs). In the case of the presence of a magnetic field, such a method has some complications and requires a passive PMT shielding design. The recent...
We present plans for SLAC's Detector Microfabrication Facility (DMF), a dedicated 5,500 sq. ft. foundry for the R&D and at-scale production of quantum and superconducting sensors and devices with high purity, complexity, yield, and reproducibility. In addition to a specialized toolset on 150mm wafers, the DMF also includes necessary capabilities for post-fabrication metrology, room-temperature...
The Quantum Capacitance Detector (QCD) is a high-sensitivity direct detector under development for low background applications such as far-infrared spectroscopy from a cold space telescope. The QCD has demonstrated an optically-measured noise equivalent power of 2x10-20 W⋅Hz-1/2 at 1.5 THz, making it among the most sensitive far-infrared (IR) detectors systems ever demonstrated. It has...
TOPAS lets users model any sort of radiation therapy or medical imaging apparatus in three dimensions by combining a set of pre-built geometry components. Users can then send any form of fundamental particle through this setup, from x-rays and electrons to protons and heavy ions. Users can easily import patient models, animal models or phantoms through DICOM and other formats and see where the...
LArTPCs are designed to explore signals with energies as low as 10s of MeV. To improve the LArTPC's energy resolution at the MeV range, photosensitive dopants may be used. These dopants convert light to charge and have the potential to increase ionization yields. We built a LArPix test stand, TinyTPC, to demonstrate this technology and study potential enhancements for next generation LArTPCs....
Effective searches for sub-GeV particle dark matter require sensitivity to recoil energies below ~1 eV. The SPLENDOR (Search for Particles of Light dark mattEr with Narrow-gap semiconDuctORs) collaboration aims to detect MeV-scale dark matter through the use of novel narrow-gap semiconductor materials coupled to extreme low noise charge amplifiers. In this talk, I describe the design and...
Due to the need to correctly determine the first interaction location of each of the two gamma rays to measure the line-of-response, Positron Emission Tomography (PET) scanner sensitivity changes rapidly with small changes in the efficiency at 511 keV. Current PET scanner designs use high atomic number (high-Z) scintillating crystals to detect photoelectric interactions in the detector. Due to...
We present the new warm electronics for Time Division Multiplexed (TDM) readout of the CMB-S4 microwave background telescopes. The system consists of “Row Address” and “Column Readout” boards which can be grouped together in modular fashion for readout of each detector wafer. Each Row Address board is capable of addressing 32 signals used for flux-activated switches. Each Column Readout board...
Silicon photomultipliers (SiPMs) are an appealing photosensor technology for next generation dark matter detectors, including XLZD and potential upgrades to LZ. The energy threshold of these experiments is driven in part by the ability to distinguish actual few-photon scintillation events from accidental coincidence events caused by photodetector dark counts. The avalanche process inside a...
Evolution of the ATLAS detector readout is driven by the rapid development of COTS network and computing systems. The Front-End Link eXchange (FELIX) system takes advantage of the new COTs components to reduce complexity and life-cycle effort. FELIX is an interface between the trigger and detector electronics and commodity switched networks for the ATLAS experiment at CERN. This rapid...
