Explanipedia

Performance and shower shape studies with EPICAL-2 Open

J. Keul, J. Alme, R. Barthel, V. Borshchov, Robert Bosley , et al. · 2025

New approaches to creating ultralight solar arrays for ultrasmall spacecrafts Open

V. Borshchov, O.M. Listratenko, M. Protsenko, I. Tymchuk, О.В. Кравченко , et al. · 2025

New approaches to selecting design-technological solutions of improved relatively flexible ul-tralight solar modules based on aluminium-polyimide boards using the most novel thin multi-junction GaAs solar cells of a new generation with an …

Modeling charge collection in silicon pixel detectors for proton therapy applications Open

Alexander Schilling, Max Aehle, J. Alme, G. G. Barnaföldi, G. Bíró , et al. · 2025

Objective. Monolithic active pixel sensors are used for charged particle tracking in many applications, from medical physics to astrophysics. The Bergen pCT collaboration designed a sampling calorimeter for proton computed tomography, base…

Reconstruction of proton relative stopping power with a granular calorimeter detector model Open

Max Aehle, J. Alme, G. G. Barnaföldi, G. Bíró, T. Bodova , et al. · 2025

Proton computed tomography (pCT) aims to facilitate precise dose planning for hadron therapy, a promising and effective method for cancer treatment. Hadron therapy utilizes protons and heavy ions to deliver well focused doses of radiation,…

Ultra-high granularity electromagnetic calorimetry – Results from the EPICAL-2 prototype and perspectives for digital calorimeters Open

T. Peitzmann, J. Alme, R. Barthel, V. Borshchov, Robert Bosley , et al. · 2025

An advanced prototype of a digital pixel calorimeter, EPICAL-2, has been constructed using ALPIDE MAPS sensors. It has been successfully tested with cosmic muons and with test beams at DESY and the CERN SPS. We will report on recent update…

Performance of the electromagnetic and hadronic prototype segments of the ALICE Forward Calorimeter Open

Max Aehle, J. Alme, C. Arata, I. C. Arsene, I. G. Bearden , et al. · 2024

We present the performance of a full-length prototype of the ALICE Forward Calorimeter (FoCal). The detector is composed of a silicon-tungsten electromagnetic sampling calorimeter with longitudinal and transverse segmentation (FoCal-E) of …

Study of thermal properties of electronic modules on combined boards with polyimide dielectrics Open

V. Borshchov, O.M. Listratenko, Mykola I. Slipchenko, M. Protsenko, I. Tymchuk , et al. · 2024

This article presesnts the construction and theoretical research of thermal models of electronic modules with increased power based on combined boards on aluminum bases using serial heat-welding polyimide - fluoroplastic films, including f…

New approaches for creating effective combined printed circuit boards on thermally conductive substrates with polyimide dielectrics Open

V. Borshchov, O.M. Listratenko, Mykola I. Slipchenko, M. Protsenko, I. Tymchuk , et al. · 2023

New approaches to manufacturing improved combined boards on aluminum bases with various thin polyimide dielectrics, including thermally conductive ones, foiled by copper or aluminum foil have been proposed. Design and technological solutio…

Performance of the electromagnetic and hadronic prototype segments of the ALICE Forward Calorimeter Open

Max Aehle, J. Alme, C. Arata, I. C. Arsene, I. G. Bearden , et al. · 2023

We present the performance of a full-length prototype of the ALICE Forward Calorimeter (FoCal). The detector is composed of a silicon-tungsten electromagnetic sampling calorimeter with longitudinal and transverse segmentation (FoCal-E) of …

Exploration of differentiability in a proton computed tomography simulation framework Open

Max Aehle, J. Alme, G. G. Barnaföldi, Johannes Blühdorn, T. Bodova , et al. · 2023

Objective. Gradient-based optimization using algorithmic derivatives can be a useful technique to improve engineering designs with respect to a computer-implemented objective function. Likewise, uncertainty quantification through computer …

Uncertainty-aware spot rejection rate as quality metric for proton therapy using a digital tracking calorimeter Open

Alexander Schilling, Max Aehle, J. Alme, G. G. Barnaföldi, T. Bodova , et al. · 2023

Objective. Proton therapy is highly sensitive to range uncertainties due to the nature of the dose deposition of charged particles. To ensure treatment quality, range verification methods can be used to verify that the individual spots in …

Nanopolymer optically transparent structures, systems and devices Open

V. Borshchov, O.M. Listratenko, M. Protsenko, I. Tymchuk, О.В. Кравченко , et al. · 2023

Search and analysis of results of theoretical and experimental studies on literature and patent sources in fields of optical and optical-electronic instrumentation are carried out. Current state and development trends of transparent polyme…

Combined heat conductive boards with polyimide dielectrics Open

V. Borshchov, O.M. Listratenko, M. Protsenko, I. Tymchuk, О.В. Кравченко , et al. · 2023

Heat-conductive properties of thin heat-conductive polyimide dielectrics have been studied and their thermal resistances have been calculated. Possibility of creating combined printed circuit boards on heat-conductive bases with reduced th…

The Bergen proton CT system Open

Max Aehle, J. Alme, G. G. Barnaföldi, T. Bodova, V. Borshchov , et al. · 2023

The Bergen proton Computed Tomography (pCT) is a prototype detector under construction. It aims to have the capability to track and measure ions’ energy deposition to minimize uncertainty in proton treatment planning. It is a high granular…

Performance of the electromagnetic pixel calorimeter prototype Epical-2 Open

J. Alme, R. Barthel, A. van Bochove, V. Borshchov, Robert Bosley , et al. · 2023

The first evaluation of an ultra-high granularity digital electromagnetic calorimeter prototype using 1.0–5.8 GeV/c electrons is presented. The 25 × 10 6 pixel detector consists of 24 layers of ALPIDE CMOS MAPS sensors, with a pitch of aro…

Structural modeling and calculation of thermal conductivity of polyimide composite materials Open

V. Borshchov, O.M. Listratenko, M. Protsenko, I. Tymchuk, О.В. Кравченко , et al. · 2022

Issues of direct modeling effective thermal conductivity of two-component thermally conductive polyimide composite films based on polyimide thermosetting varnishes and thermally conductive powder fillers are considered. 3D-structural mode…

Results from the EPICAL-2 ultra-high granularity electromagnetic calorimeter prototype Open

T. Peitzmann, J. Alme, R. Barthel, A. van Bochove, V. Borshchov , et al. · 2022

A prototype of a new type of calorimeter has been designed and constructed, based on a silicon-tungsten sampling design using pixel sensors with digital readout. It makes use of the Alpide MAPS sensor developed for the ALICE ITS upgrade. A…

High-thermally conductive composite polyimide materials Open

V. Borshchov, O.M. Listratenko, M. Protsenko, I. Tymchuk, О.В. Кравченко , et al. · 2022

This review is devoted to analysis of works in the field of creating electrically insulating heat-conducting polyimide composite films based on powders of micro-, submicro- or nano-sized fillers with high dielectric and heat-conducting pro…

Snowmass 2021/22 Letter of Interest: A Forward Calorimeter at the LHC Open

I. G. Bearden, R. Bellwied, V. Borshchov, J. Faivre, C. Furget , et al. · 2022

A forward electromagnetic and hadronic calorimeter (FoCal) was proposed as an upgrade to the ALICE experiment, to be installed during LS3 for data-taking in 2027--2029 at the LHC. The FoCal extends the scope of ALICE, which was designed fo…

Exploration of Differentiability in a Proton Computed Tomography Simulation Framework Open

Max Aehle, J. Alme, G. G. Barnaföldi, Johannes Blühdorn, T. Bodova , et al. · 2022

Objective. Algorithmic differentiation (AD) can be a useful technique to numerically optimize design and algorithmic parameters by, and quantify uncertainties in, computer simulations. However, the effectiveness of AD depends on how "well-…

First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors Open

G. Aglieri Rinella, M. Agnello, B. Alessandro, J. Alme, F. Agnese , et al. · 2022

Investigating particle track topology for range telescopes in particle radiography using convolutional neural networks Open

Helge Egil Seime Pettersen, Max Aehle, J. Alme, G. G. Barnaföldi, V. Borshchov , et al. · 2021

Proton computed tomography (pCT) and radiography (pRad) are proposed modalities for improved treatment plan accuracy and in situ treatment validation in proton therapy. The pCT system of the Bergen pCT collaboration is able to handl…

First demonstration of in-beam performance of bent Monolithic Active Pixel Sensors Open

ALICE ITS project, NULL AUTHOR_ID, G. Aglieri Rinella, M. Agnello, B. Alessandro , et al. · 2021

A novel approach for designing the next generation of vertex detectors foresees to employ wafer-scale sensors that can be bent to truly cylindrical geometries after thinning them to thicknesses of 20-40$μ$m. To solidify this concept, the f…

Dispersion of nanoparticles in optically transparent polymer matrices Open

V. Borshchov, O.M. Listratenko, M. Protsenko, I. Tymchuk, О.В. Кравченко , et al. · 2021

Search and analysis of results of theoretical and experimental studies, materials of dissertations, literature sources and patents in the field of optical and optoelectronic instrumentation were carried out. Obtained data and recommendatio…

Helium radiography with a digital tracking calorimeter—a Monte Carlo study for secondary track rejection Open

Helge Egil Seime Pettersen, Lennart Volz, Jarle Rambo Sølie, J. Alme, G. G. Barnaföldi , et al. · 2020

Radiation therapy using protons and heavier ions is a fast-growing therapeutic option for cancer patients. A clinical system for particle imaging in particle therapy would enable online patient position verification, estimation of the dose…

A High-Granularity Digital Tracking Calorimeter Optimized for Proton CT Open

J. Alme, G. G. Barnaföldi, R. Barthel, V. Borshchov, T. Bodova , et al. · 2020

A typical proton CT (pCT) detector comprises a tracking system, used to measure the proton position before and after the imaged object, and an energy/range detector to measure the residual proton range after crossing the object. The Bergen…

Investigation of the compressed baryonic matter at the GSI accelerator complex Open

V. Ladygin, T. O. Ablyazimov, Pavel Akishin, E. P. Akishina, Valentina Akishina , et al. · 2017

\nThe Compressed Baryonic Matter (CBM) experiment at FAIR will play a unique role in the exploration of the QCD phase diagram in the region of high net-baryon densities, because it is designed to run at unprecedented interaction rates. Hig…

The new design and technological solutions for the led modules for retrofit lamps Open

V. Borshchov, O.M. Listratenko, M. Protsenko, I. Tymchuk, G. I. Nikitskiy , et al. · 2016

The authors propose fundamentally new design-technological solutions for compact volumetric mirrorized LED modules with increased power. Test samples of volumetric light-effective LED light effective modules with a power of 10—15 W and lig…

Improvement of ultra-light microcables production at LTU for the CBM Silicon Tracking System Open

V. Borshchov, G. I. Nikitskiy, V. G. Kucherenko, K. M. Liholitova, I. Tymchuk , et al. · 2015

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