Publications (16)
The Ultra-Low material budget GEM based TPC for tracking with VMM3a readout
F. Garcia, K. J. Flöthner, A. Amato +21
The Gaseous Electron Multiplier-based Time Projection Chamber (GEM-TPC) in TWIN configuration for particle tracking has been consolidated after extensive investigations in differen…
The novel XYU-GEM to resolve ambiguities
K. J. Flöthner, F. Brunbauer, S. Ferry +16
Removing ambiguities within a single stage becomes crucial when one can not use multiple detectors behind each other to resolve them which naturally is the case for neutral radiati…
Towards MPGDs with embedded pixel ASICs
L. Scharenberg, J. Alozy, W. Billereau +27
Combining gaseous detectors with a high-granularity pixelated charge readout enables experimental applications which otherwise could not be achieved. This includes high-resolution…
Measurements of enriched 155 Gd and 157Gd converters with the NMX detector on the nTOF EAR2 beam line at CERN
D. Pfeiffer, F. M. Brunbauer, I. R. Fehse +15
The detectors for the NMX instrument at the European Spallation Source (ESS) in Lund use natural Gd as the neutron converter. In 2024, beam time was obtained at the neutron time-of…
Development of an electrical model of a resistive micromegas
J. Samarati
We have developped a model to simulate the behavior of a resistive micromegas (MICROMEsh GAseous Structure) detector to a discharge using an electronic software (Virtuoso).
Recoil imaging for directional detection of dark matter, neutrinos, and physics beyond the Standard Model
C. A. J. O'Hare, D. Loomba, K. Altenmüller +164
Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detecto…
Application of the VMM3a/SRS: A t0-less TWIN GEM-based TPC
K. J. Flöthner, F. Garcia, B. Oberhauser +17
Integrating the ATLAS/BNL VMM3a ASIC (Application Specific Integrated Circuit) into the RD51/SRS (Scalable Readout System) provides a self-triggered continuous readout system for v…
Test in a beam of large-area Micromegas chambers for sampling calorimetry
C. Adloff, M. Chefdeville, A. Dalmaz +9
Application of Micromegas for sampling calorimetry puts specific constraints on the design and performance of this gaseous detector. In particular, uniform and linear response, low…
Embedding the Timepix4 in Micro-Pattern Gaseous Detectors
L. Scharenberg, J. Alozy, W. Billereau +27
The combination of Micro-Pattern Gaseous Detectors (MPGDs) and pixel charge readout enables specific experimental opportunities. Using the Timepix4 for the readout is advantageous…
Performance of the new RD51 VMM3a/SRS beam telescope---studying MPGDs simultaneously in energy, space and time at high rates
L. Scharenberg, J. Bortfeldt, F. Brunbauer +14
The RD51 collaboration maintains a common infrastructure at CERN for its R & D activities, including two beam telescopes for test beam campaigns. Recently, one of the beam telescop…
Demonstration of Gd-GEM detector design for neutron macromolecular crystallography applications
D. Pfeiffer, F. Brunbauer, R. Hall-Wilton +12
The European Spallation Source (ESS) in Lund, Sweden will become the world's most powerful thermal neutron source. The Macromolecular Diffractometer (NMX) at the ESS requires three…
Spatial resolution improvements with finer-pitch GEMs
K. J. Flöthner, L. Scharenberg, A. Brask +13
Gas Electron Multipliers (GEMs) are used in many particle physics experiments, employing their 'standard' configuration with amplification holes of 140 um pitch in a hexagonal patt…
Optical readout of MPGDs with solid wavelength shifters
F. M. Brunbauer, A. Cools, M. Cortesi +20
Optical readout of MicroPattern Gaseous Detectors (MPGDs) makes use of the high granularity of imaging sensors to achieve good spatial resolution for radiation imaging and particle…
Optical Readout Studies of the Thick-COBRA Gaseous Detector
F. Garcia, F. M. Brunbauer, M. Lisowska +11
The performance of a Thick-COBRA (THCOBRA) gaseous detector is studied using an optical readout technique. The operation principle of this device is described, highlighting its ope…
Characterisation of resistive MPGDs with 2D readout
L. Scharenberg, F. Brunbauer, H. Danielson +22
Micro-Pattern Gaseous Detectors (MPGDs) with resistive anode planes provide intrinsic discharge robustness while maintaining good spatial and time resolutions. Typically read out w…
Rate-capability of the VMM3a Front End in the RD51 Scalable Readout System
D. Pfeiffer, L. Scharenberg, P. Schwäbig +20
The VMM3a is an Application Specific Integrated Circuit (ASIC), specifically developed for the readout of gaseous detectors. Originally developed within the ATLAS New Small Wheel (…