G. Bosson - LPSC Grenoble

G. Bosson
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Contact Details

Name
G. Bosson
Affiliation
LPSC Grenoble
City
Grenoble
Country
France

Pubs By Year

Pub Categories

 
Instrumentation and Methods for Astrophysics (19)
 
Physics - Instrumentation and Detectors (16)
 
Cosmology and Nongalactic Astrophysics (10)
 
Nuclear Experiment (4)
 
High Energy Physics - Experiment (2)
 
Physics - Accelerator Physics (1)

Publications Authored By G. Bosson

The measurement of the direction of WIMP-induced nuclear recoils is a compelling but technologically challenging strategy to provide an unambiguous signature of the detection of Galactic dark matter. Most directional detectors aim to reconstruct the dark-matter-induced nuclear recoil tracks, either in gas or solid targets. The main challenge with directional detection is the need for high spatial resolution over large volumes, which puts strong requirements on the readout technologies. Read More

The Polarized Electrons for Polarized Positrons experiment at the injector of the Continuous Electron Beam Accelerator Facility has demonstrated for the first time the efficient transfer of polarization from electrons to positrons produced by the polarized bremsstrahlung radiation induced by a polarized electron beam in a high-$Z$ target. Positron polarization up to 82\% have been measured for an initial electron beam momentum of 8.19~MeV/$c$, limited only by the electron beam polarization. Read More

2016Feb
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9IRSN Cadarache, 10IRSN Cadarache, 11IRFU Saclay, 12IRFU Saclay, 13CPPM Marseille, 14CPPM Marseille, 15CPPM Marseille, 16CPPM Marseille

MIMAC (MIcro-TPC MAtrix of Chambers) is a directional WIMP Dark Matter detector project. Direct dark matter experiments need a high level of electron/recoil discrimination to search for nuclear recoils produced by WIMP-nucleus elastic scattering. In this paper, we proposed an original method for electron event rejection based on a multivariate analysis applied to experimental data acquired using monochromatic neutron fields. Read More

The New Iram Kid Arrays-2 (NIKA2) instrument has recently been installed at the IRAM 30 m telescope. NIKA2 is a state-of-art instrument dedicated to mm-wave astronomy using microwave kinetic inductance detectors (KID) as sensors. The three arrays installed in the camera, two at 1. Read More

The STEREO experiment will search for a sterile neutrino by measuring the anti-neutrino energy spectrum as a function of the distance from the source, the ILL nuclear reactor. A dedicated electronic system, hosted in a single microTCA crate, was designed for this experiment. It performs triggering in two stages with various selectable conditions, processing and readout via UDP/IPBUS of 68 photomultiplier signals continuously digitized at 250 MSPS. Read More

2015Apr
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9IRFU Saclay, 10IRFU Saclay, 11IRFU Saclay, 12CPPM Marseille, 13CPPM Marseille, 14CPPM Marseille, 15IRSN Cadarache, 16IRSN Cadarache

The MIMAC experiment is a $\mu$-TPC matrix project for directional dark matter search. Directional detection is a strategy based on the measurement of the WIMP flux anisotropy due to the solar system motion with respect to the dark matter halo. The main purpose of MIMAC project is the measurement of the energy and the direction of nuclear recoils in 3D produced by elastic scattering of WIMPs. Read More

2014Jan
Affiliations: 1LPSC Grenoble, 2MIT, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9LPSC Grenoble, 10Univ. Zaragoza, 11IRSN Cadarache, 12IRSN Cadarache

Three-dimensional track reconstruction is a key issue for directional Dark Matter detection. It requires a precise knowledge of the electron drift velocity. Magboltz simulations are known to give a good evaluation of this parameter. Read More

2013Nov
Affiliations: 1LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 2LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 3LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 4LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 5LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 6LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 7LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 8LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 9LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 10LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 11LPSC/UJF-Grenoble 1/CNRS-IN2P3/IPG, 12LNE-IRSN-Cadarache, 13LNE-IRSN-Cadarache, 14CPPM/CNRS-IN2P3/Marseille, 15CPPM/CNRS-IN2P3/Marseille, 16CPPM/CNRS-IN2P3/Marseille

Directional detection of non-baryonic Dark Matter is a promising search strategy for discriminating WIMP events from neutrons, the ultimate background for dark matter direct detection. This strategy requires both a precise measurement of the energy down to a few keV and 3D reconstruction of tracks down to a few mm. The MIMAC (MIcro-tpc MAtrix of Chambers) collaboration has developed in the last years an original prototype detector based on the direct coupling of large pixelized micromegas with a special developed fast self-triggered electronics showing the feasibility of a new generation of directional detectors. Read More

In order to measure the energy of neutron fields, with energy ranging from 8 keV to 1 MeV, a new primary standard is being developed at the IRSN (Institute for Radioprotection and Nuclear Safety). This project, micro-TPC (Micro Time Projection Chamber), carried out in collaboration with the LPSC (Laboratoire de Physique Subatomique et de Cosmologie), is based on the nuclear recoil detector principle. The instrument is presented with the associated method to measure the neutron energy. Read More

In order to measure energy and fluence of neutron fields, with energy ranging from 8 keV to 1 MeV, a new primary standard is being developed at the IRSN (Institute for Radioprotection and Nuclear Safety). This project, micro-TPC (Micro Time Projection Chamber), carried out in collaboration with the LPSC, is based on the nucleus recoil detector principle. The measurement strategy requires track reconstruction of recoiling nuclei down to a few keV, which can be achieved with a low pressure gaseous detector using a micro-pattern gaseous detector. Read More

2013Jun
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9LPSC Grenoble, 10LPSC Grenoble, 11IRSN Cadarache, 12IRSN Cadarache, 13CPPM Marseille, 14CPPM Marseille, 15CPPM Marseille

Directional detection is a promising direct Dark Matter (DM) search strategy. The angular distribution of the nuclear recoil tracks from WIMP events should present an anisotropy in galactic coordinates. This strategy requires both a measurement of the recoil energy with a threshold of about 5 keV and 3D recoil tracks down to few millimeters. Read More

2013May
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9LPSC Grenoble, 10Universidad de Zaragoza, 11IRSN Cadarache, 12IRSN Cadarache

Three-dimensional track reconstruction is a key issue for directional Dark Matter detection and it requires a precise knowledge of the electron drift velocity. Magboltz simulations are known to give a good evaluation of this parameter. However, large TPC operated underground on long time scale may be characterized by an effective electron drift velocity that may differ from the value evaluated by simulation. Read More

The dark matter directional detection opens a new field in cosmology bringing the possibility to build a map of nuclear recoils that would be able to explore the galactic dark matter halo giving access to a particle characterization of such matter and the shape of the halo. The MIMAC (MIcro-tpc MAtrix of Chambers) collaboration has developed in the last years an original prototype detector based on the direct coupling of large pixelized micromegas with a devoted fast self-triggered electronics showing the feasibility of a new generation of directional detectors. The discovery potential of this search strategy is discussed and illustrated. Read More

The AMANDE facility produces monoenergetic neutron fields from 2 keV to 20 MeV for metrological purposes. To be considered as a reference facility, fluence and energy distributions of neutron fields have to be determined by primary measurement standards. For this purpose, a micro Time Projection Chamber is being developed to be dedicated to measure neutron fields with energy ranging from 8 keV up to 1 MeV. Read More

Directional detection of non-baryonic DarkMatter is a promising search strategy for discriminating WIMP events from background ones. This strategy requires both a measurement of the recoil energy down to a few keV and 3D reconstruction of tracks down to a few mm. The MIMAC project, based on a micro-TPC matrix, filled with CF4 and CHF3 is being developed. Read More

A front end ASIC has been designed to equip the {\mu}TPC prototype developed for the MIMAC project, which requires 3D reconstruction of low energy particle tracks in order to perform directional detection of galactic Dark Matter. Each ASIC is able to monitor 64 strips of pixels and provides the "Time Over Threshold" information for each of those. These 64 digital informations, sampled at a rate of 50 MHz, can be transferred at 400MHz by eight LVDS serial links. Read More

Directional detection of non-baryonic Dark Matter requires 3D reconstruction of low energy nuclear recoils tracks. A gaseous micro-TPC matrix, filled with either 3He, CF4 or C4H10 has been developed within the MIMAC project. A dedicated acquisition electronics and a real time track reconstruction software have been developed to monitor a 512 channel prototype. Read More

2011Oct
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble

There is considerable experimental effort dedicated to the directional detection of particle dark matter. Gaseous mu-TPC detectors present the privileged features of being able to reconstruct the track and the energy of the recoil nucleus following the interaction. A precise measurement of the recoil energy is a key point for the directional search strategy. Read More

A complete dedicated electronics, from front-end to back-end, was developed to instrument a MIMAC prototype. A front end ASIC able to monitor 64 strips of pixels and to provide their individual "Time Over Threshold" information has been designed. An associated acquisition electronics and a real time track reconstruction software have been developed to monitor a 512 channel prototype. Read More

The aim of the MIMAC project is to detect non-baryonic Dark Matter with a directional TPC. The recent Micromegas efforts towards building a large size detector will be described, in particular the characterization measurements of a prototype detector of 10 $\times$ 10 cm$^2$ with a 2 dimensional readout plane. Track reconstruction with alpha particles will be shown. Read More

The aim of the MIMAC project is to detect non-baryonic Dark Matter with a directional TPC using a high precision Micromegas readout plane. We will describe in detail the recent developments done with bulk Micromegas detectors as well as the characterisation measurements performed in an Argon(95%)-Isobutane(5%) mixture. Track measurements with alpha particles will be shown. Read More

2011Feb
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9LPSC Grenoble, 10LPSC Grenoble, 11CEA Saclay, 12CEA Saclay, 13CEA Saclay, 14CEA Saclay, 15CEA Saclay, 16IRSN Cadarache, 17IRSN Cadarache

Directional detection of non-baryonic Dark Matter is a promising search strategy for discriminating WIMP events from background. However, this strategy requires both a precise measurement of the energy down to a few keV and 3D reconstruction of tracks down to a few mm. To achieve this goal, the MIMAC project has been developed. Read More

Directional detection of non-baryonic Dark Matter is a promising search strategy for discriminating WIMP events from background. However, this strategy requires both a precise measurement of the energy down to a few keV and 3D reconstruction of tracks down to a few mm. To achieve this goal, the MIMAC project has been developed. Read More

2010Aug
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9CEA Saclay, 10CEA Saclay, 11CEA Saclay

Directional detection of non-baryonic Dark Matter is a promising search strategy for discriminating genuine WIMP events from background ones. However, carrying out such a strategy requires both a precise measurement of the energy down to a few keV and 3D reconstruction of tracks down to a few mm. To achieve this goal, the MIMAC project has been developed: it is based on a gaseous micro-TPC matrix, filled with 3He, CF4 and/or C4H10. Read More

2010Jun
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble

Directional detection of galactic Dark Matter requires 3D reconstruction of low energy nuclear recoils tracks. A dedicated acquisition electronics with auto triggering feature and a real time track reconstruction software have been developed within the framework of the MIMAC project of detector. This auto-triggered acquisition electronic uses embedded processing to reduce data transfer to its useful part only, i. Read More

2010Jan
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9LPSC Grenoble, 10LPSC Grenoble, 11CEA Saclay, 12CEA Saclay, 13CEA Saclay, 14IRSN Cadarache, 15IRSN Cadarache

Directional detection of galactic Dark Matter is a promising search strategy for discriminating geniune WIMP events from background ones. We present technical progress on gaseous detectors as well as recent phenomenological studies, allowing the design and construction of competitive experiments. Read More

2009Dec
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble

A front end ASIC (BiCMOS-SiGe 0.35 \mum) has been developed within the framework of the MIMAC detector project, which aims at directional detection of non-baryonic Dark Matter. This search strategy requires 3D reconstruction of low energy (a few keV) tracks with a gaseous \muTPC. Read More

2009Sep
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9LPSC Grenoble, 10CEA Saclay, 11CEA Saclay, 12CEA Saclay, 13IRSN Cadarache, 14IRSN Cadarache

We have developed a micro-tpc using a pixelized bulk micromegas coupled to dedicated acquisition electronics as a read-out allowing to reconstruct the three dimensional track of a few keV recoils. The prototype has been tested with the Amande facility at the IRSN-Cadarache providing monochromatic neutrons. The first results concerning discrimination of a few keV electrons and proton recoils are presented. Read More

2009May
Affiliations: 1LPSC Grenoble, 2LPSC Grenoble, 3LPSC Grenoble, 4LPSC Grenoble, 5LPSC Grenoble, 6LPSC Grenoble, 7LPSC Grenoble, 8LPSC Grenoble, 9CEA Saclay, 10CEA Saclay, 11CEA Saclay

MiMac is a project of micro-TPC matrix of gaseous (He3, CF4) chambers for direct detection of non-baryonic dark matter. Measurement of both track and ionization energy will allow the electron-recoil discrimination, while access to the directionnality of the tracks will open a unique way to distinguish a geniune WIMP signal from any background. First reconstructed tracks of 5. Read More