arXiv subjects

Daniel Soyk

Publications and source records attributed to Daniel Soyk.

5 recordsLinked to original sources

arXiv2025

Commissioning of proANUBIS: A proof-of-concept detector for the ANUBIS experiment

Long-lived particles (LLPs), predicted by various extensions of the Standard Model (SM), have become a key focus of the contemporary search programme for physics beyond the SM. To enhance LLP discovery potential at the LHC, the ANUBIS experiment has been proposed to instrument the ceiling of the ATLAS experiment's underground cavern with dedicated tracking detectors. This report summarises recent progress towards realising ANUBIS. Specifically, a key milestone has been achieved with the installation and commissioning of proANUBIS, a prototype that serves as a proof-of-concept for ANUBIS. We describe the proANUBIS setup, including its remotely-operated data acquisition system and automatic signal processing chain. The proANUBIS demonstrator is used to evaluate the detector performance under realistic conditions in the UX1 ATLAS experimental cavern, including readout synchronisation with the ATLAS experiment. Furthermore, proANUBIS allows for the direct measurement of relevant background processes in a representative location within the ATLAS cavern, providing input for the simulation of such processes for the future ANUBIS detector. The paper concludes with an update on the current status of the ANUBIS project and its roadmap toward a full-scale implementation in the ATLAS cavern.

hep-ex↗

arXiv2025

Construction of proANUBIS: A proof-of-concept detector for the ANUBIS experiment

The ANUBIS experiment aims to search for long-lived particles at the Large Hadron Collider (LHC) at CERN. To assess the feasibility of the project, a prototype detector, proANUBIS, was designed, constructed, and prepared for installation in the UX1 ATLAS experimental cavern at the LHC. The primary physics goals of proANUBIS are to determine the technical limitations of the detector technology and to explore the ANUBIS detector concept through in-situ measurements of muon and hadron fluxes inside the ATLAS cavern, which can be used to refine Monte Carlo simulations of such fluxes further. This report describes the design and construction of the proANUBIS experimental setup using Resistive Plate Chambers (RPCs), highlighting the possible future use case of the technology for ANUBIS. Details on the RPC technology, construction processes, quality control measures, and performance studies are discussed. Furthermore, the RPC front-end on-detector electronics and data acquisition components of proANUBIS are presented.

hep-ex↗

arXiv2025

Long-term operation of the screen-printed graphite-based resistive coatings on the HPL electrode for the Resistive Plate Chamber

The reliability of large-area Resistive Plate Chambers (RPCs) operated under High-Luminosity Large Hadron Collider (HL-LHC) conditions is governed by the long-term stability and radiation tolerance of screen-printed graphite/phenoxy coatings on high-pressure-laminate (HPL) electrodes. This work presents a comprehensive, end-to-end qualification of such coatings that integrates industrial process control and metrology with controlled humidity/temperature campaigns, extended high-voltage stress testing to decade-scale charge levels, and representative neutron and gamma irradiation at CERN facilities. The results establish reproducible industrial coating production, stable performance under sustained operation and irradiation, and practical acceptance criteria with operating and monitoring guidelines. The study provides a transferable quality-assurance framework for graphite-based resistive coatings on HPL electrodes, enabling reproducible production and reliable RPC performance for the HL-LHC upgrades and for future high-rate collider experiments.

hep-ex↗

arXiv2025

Resistive Plate Chamber Detector Construction and Certification: State-of-the-Art Facilities at the Max Planck Institute for Physics, in Partnership with Industrial Partners

Resistive Plate Chambers (RPCs) featuring 1 mm gas volumes combined with high-pressure phenolic laminate (HPL) electrodes provide excellent timing resolution down to a few hundred picoseconds, along with spatial resolution on the order of a few millimeters. Thanks to their relatively low production cost and robust performance in high-background environments, RPCs have become essential components for instrumenting large detection areas in high-energy physics experiments. The growing demand for these advanced RPC detectors, particularly for the High-Luminosity upgrade of the Large Hadron Collider (HL-LHC), necessitates the establishment of new production facilities capable of delivering high-quality detectors at an industrial scale. To address this requirement, a dedicated RPC assembly and certification facility has been developed at the Max Planck Institute for Physics in Munich, leveraging strategic collaborations with industrial partners MIRION and PTS. This partnership facilitated the transfer of advanced, research-level assembly methodologies into robust, scalable industrial processes. Through a structured, phased prototyping and certification approach, initial tests on small-scale ($40 \times 50 \, cm^2$) prototypes validated the scalability and applicability of optimized production procedures to large-scale ($1.0 \times 2.0 \, m^2$) RPC detectors. Currently, the project has entered its final certification phase, involving extensive performance and longevity testing, including a year-long irradiation campaign at CERN's Gamma Irradiation Facility (GIF++). This article details the development and successful industrial implementation of novel assembly techniques, highlighting the enhanced capabilities and reliability of RPC detectors prepared through this industrial-academic collaboration, ensuring readiness for upcoming challenges in high-energy physics detector instrumentation.

physics.ins-det↗

arXiv2009

Development of a GEM-TPC prototype

The use of GEM foils for the amplification stage of a TPC instead of a con- ventional MWPC allows one to bypass the necessity of gating, as the backdrift is suppressed thanks to the asymmetric field configuration. This way, a novel continuously running TPC, which represents one option for the PANDA central tracker, can be realized. A medium sized prototype with a diameter of 300 mm and a length of 600 mm will be tested inside the FOPI spectrometer at GSI using a carbon or lithium beam at intermediate energies (E = 1-3AGeV). This detector test under realistic experimental conditions should allow us to verify the spatial resolution for single tracks and the reconstruction capability for displaced vertexes. A series of physics measurement implying pion beams is scheduled with the FOPI spectrometer together with the GEM-TPC as well.

physics.ins-det↗