Dissertation/ Thesis
Resonant elastic and inelastic scattering for the experimental characterization of the active target ACTAR TPC ; Réactions élastiques et inélastiques résonantes pour la caractérisation expérimentale de la cible active ACTAR TPC
| العنوان: | Resonant elastic and inelastic scattering for the experimental characterization of the active target ACTAR TPC ; Réactions élastiques et inélastiques résonantes pour la caractérisation expérimentale de la cible active ACTAR TPC |
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| المؤلفون: | Mauss, Benoit |
| المساهمون: | Grand Accélérateur National d'Ions Lourds (GANIL), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université, Olivier Sorlin |
| المصدر: | https://theses.hal.science/tel-01987365 ; Physique [physics]. Normandie Université, 2018. Français. ⟨NNT : 2018NORMC226⟩. |
| بيانات النشر: | CCSD |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Resonant scattering, Active target, MICROMEGAS detector, 3D track analysis, Alpha clustering, Réactions résonantes, Cible active, Détecteur MICROMEGAS, Analyse de traces 3D, Agrégats d'alphas, [PHYS.PHYS]Physics [physics]/Physics [physics] |
| الوصف: | ACTAR TPC (ACtive TARget and Time Projection Chamber) is a next generation active target that was designed and built at GANIL (Grand Accélérateur d'Ions Lourds). Active targets are gaseous targets in which the gas is also used to track charged particles following the principles of time projection chambers (TPC). The TPC of ACTAR has a segmented anode of 16384 2 mm side square pixels. The high density of pixels is processed using the GET (General Electronics for TPCs) electronic system. This system also digitizes the signals over a time interval, enabling a full 3D event reconstruction. An eight time smaller demonstrator was first built to verify the electronics operation and the mechanical design. ACTAR TPC's final design was based on results obtained with the demonstrator which was tested using 6Li, 24Mg and 58Ni beams. The commissioning of ACTAR TPC was then carried out for the case of resonant scattering on a proton target using 18O and 20Ne beams. A track reconstruction algorithm is used to extract the angles and energies of the ions involved in the reactions. Results are compared to previous data to determine the detection system performances. Comparing the commissioning data with R matrix calculations, excitation functions resolutions in different cases are obtained. The use of ACTAR TPC is validated for future experiments. Furthermore, alpha clustering was studied in 10B through the resonant scattering 6Li + 4He, carried out with the demonstrator. Two resonances at 8.58 MeV and 9.52 MeV are observed for the first time in elastic scattering with this reaction channel. ; ACTAR TPC (ACtive TARget and Time Projection Chamber) est une cible active de nouvelle génération construite au GANIL (Grand Accélérateur d'Ions Lourds). Les cibles actives sont des cibles gazeuses où le gaz permet de détecter le passage de particules chargées selon le principe des chambres à projection temporelle (TPC). La TPC d'ACTAR est formée d'une anode segmentée de 16384 pixels carrés de 2 mm de côté. La haute densité de voies est ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| اللغة: | French |
| Relation: | NNT: 2018NORMC226 |
| الاتاحة: | https://theses.hal.science/tel-01987365 https://theses.hal.science/tel-01987365v2/document https://theses.hal.science/tel-01987365v2/file/28098-mauss-benoit-merged.pdf |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.D2DC1A72 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |