Ganesh Jagannath Tambave

Development and performance test of p-type Silicon pad array detector Open

Sawan, Ganesh Jagannath Tambave, Subhadip Das, Anurag Chaudhry, R.S. Gupta , et al. · 2025

This article reports on the development and comprehensive evaluation of p-type silicon detector arrays fabricated at the Semi-Conductor Laboratory (SCL), Mohali, India. The detectors consist of an 8~$\times$~9 array of 1~$\times$~1~cm$^2$ …

Design, fabrication and characterization of 8x9 n-type silicon pad array for sampling calorimetry Open

Mohamad Sawan, Ganesh Jagannath Tambave, J.-L. Bouly, O. Bourrion, T. Chujo , et al. · 2025

This paper reports the development and testing of n-type silicon pad array detectors intended for the Forward Calorimeter (FoCal) detector, which is an upgrade of the ALICE detector at CERN, scheduled for data taking in Run 4 (2029–2034). …

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,…

Beam test of n-type Silicon pad array detector at PS CERN Open

M Sawan, M. Bregant, J.-L. Bouly, O. Bourrion, A. van den Brink , et al. · 2024

This work reports the test of an n-type silicon pad array detector at the CERN PS in the context of the future Forward Calorimeter (FoCal) detector. FoCal is a proposed upgrade in the ALICE detector operating within the pseudorapidity rang…

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 …

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 …

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…

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-…

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…

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…

Characterization of boron-coated silicon sensors for thermal neutron detection Open

Shruti Mehendale, Kalliopi Kanaki, Marco Povoli, Andreas Tefre Samnøy, Ganesh Jagannath Tambave , et al. · 2020

Development of Readout Electronics for a Digital Tracking Calorimeter Open

O.S. Groettvik, J. Alme, R. Barthel, T. Bodova, V. I. Borshchov , et al. · 2020

Highly segmented digital tracking calorimeters consist of multiple layers of high-granularity pixel detector CMOS sensors and absorption/conversion layers. Two separate prototypes are being developed: (1) an electromagnetic calorimeter for…

Characterization of monolithic CMOS pixel sensor chip with ion beams for application in particle computed tomography Open

Ganesh Jagannath Tambave, J. Alme, G. G. Barnaföldi, R. Barthel, A. van den Brink , et al. · 2019

Design optimization of a pixel-based range telescope for proton computed tomography Open

Helge Egil Seime Pettersen, J. Alme, G. G. Barnaföldi, R. Barthel, A. van den Brink , et al. · 2019

ALICE SAMPA-ASIC Second-Prototype Qualification Studies for LHC Run 3 and Beyond Open

Ganesh Jagannath Tambave · 2018

ALICE experiment studies the properties of the Quark-Gluon Plasma a new state of matter which is expected to be created at the high-energy densities reached at the CERNs LHC. In 2019 after the long-shutdown of LHC, a major upgrade of the A…

Qualification of the ALICE SAMPA ASIC With a High-Speed Continuous DAQ System Open

Ganesh Jagannath Tambave, A. Velure · 2017

During the Long Shutdown 2 of CERN's Large Hadron Collider, foreseen to start in 2019, the ALICE experiment will upgrade its time projection chamber (TPC) detector to cope with a Pb-Pb collision rate of 50 kHz in the next running phase. In…

Hypernuclear production cross section in the reaction of 6Li + 12C at 2 A GeV Open

C. Rappold, Takehiko Saito, O. Bertini, S. Bianchin, V. Bozkurt , et al. · 2015

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