XeSAT2022 - International Workshop on Applications of Noble Gas Xenon to Science and Technology

23 mai 2022, 18:00 → 26 mai 2022, 18:00 Europe/Lisbon

Main auditorium

The "International Workshop on Applications of Noble Gas Xenon to Science and Technology" (XeSAT 2022) is the 5th in a series of meetings focusing on all aspects of using xenon and other noble gas detectors in various radiation fields, intended to be a forum for physicists, chemists, and engineers to discuss the advances in noble gas technology and application in specific issues. The conference topics are rare gas detectors and their applications in science, medical science, and technology. XeSAT2022 will be held at Coimbra University, Portugal, from May 23-26, 2022. The conference will provide an important opportunity for discussion among people working in different fields. This series of conferences started in 2003 with a meeting entitled HPXe named by V. Dmitrenko of MEPHI. Following the first one,  the XeSAT 2005 was held at Waseda University, organized by N. Hasebe. Unfortunately, the XeSAT series was interrupted despite the tremendous expansion in the field as well as the amazing advances in detector technology. After the long break, the XeSAT 2017 was organized in 2017, in Thailand, Khon Kaen, with the effort of Prof. Chinorat Kobdaj at the Suranaree University of Technology and Prof. K.L. Giboni of Shanghai Jiao Tong University in China. Last of all, XeSAT2018 was held at Waseda University, organized by Prof. N. Hasebe. XeSAT2022 will be organized, in a common effort, by the University of Coimbra, Portugal, and Subatech, University of Nantes, France. The XeSAT2022 conference will be held in the main auditorium of the Physics Department of The Faculty of Science and Technology of the University of Coimbra. Coimbra is a historical city that hosts one of the oldest universities of Europe (1290), together with Bologna and Santiago de Compostela, more than 700 years old. Apart from the University, there are many interesting monuments dating from the Roman times onwards. The program will consist of invited lectures and oral presentations. Scientists and engineers are invited to join the workshop and share not only work and results but also their valuable experience, contributing to the enrichment of the international community.

Book_of_Abstract_XESAT2022.pdf

lundi 23 mai

18:00 → 20:00 Welcome reception at Coimbra University Physics Department

mardi 24 mai

09:30 → 10:30 Introduction, conference opening

09:30 Welcome, José Matias-Lopes and Dominique Thers

09:40 Keynote: Dark Matter Direct Detection with Noble Liquid Detectors, Elena Aprile

Orateur: Elena Aprile

Aprile_XeSAT_May24_2022.pdf

10:30 → 11:00 R&D session 1, Chair Luis Fernandes

10:30 Invited: Xenoscope — a full-scale vertical demonstrator for the DARWIN observatory, Laura Baudis

Orateur: Laura Baudis (University of Zurich)

baudis_xesat2022.pdf

11:00 → 11:20 Coffee break

11:20 → 12:20 R&D session 1, Chair Luis Fernandes

11:20 Invited: Air Liquide, how rare gases challenge us and allows us to open a new gate on Big Science, Amandine Marc and Luc Gaffet

Orateur: Luc Gaffet (Air Liquide)

AirLiquide_Gaffet_XeSAT 2022 Workshop (1).pdf

11:50 SiPM readout of Xenoscope, a full-scale DARWIN vertical demonstrator, Ricardo Peres

Orateur: Ricardo Peres (University of Zurich)

SiPM readout of Xenoscope.pptx

SiPM_readout_of_Xenoscope_v2.pdf

12:05 The development of hermetic quartz chamber for future low background liquid xenon detectors, Masatoshi Kobayashi

Orateur: Masatoshi Kobayashi (ISEE, Nagoya University)

Hermetic_chamber_XeSAT_v3_compressed.pdf

12:20 → 14:00 Lunch

14:00 → 15:30 Xenon based experiments session 1, chair Sara Diglio

14:00 Invited: The XENONnT experiment: recent status and updates, Masatoshi Kobayashi

XENONnT is a direct dark matter search experiment using 8.5 tons of liquid xenon located at Laboratori Nazionali del Gran Sasso (LNGS), Italy. After the successful decommissioning of the previous experiment, XENON1T, XENONnT has been constructed and commissioned until spring 2021. Since then, science data taking and analysis is ongoing towards the first result. In this talk, a summary of recent status and updates of the experiment will be reported.

Orateur: Dr Masatoshi Kobayashi (Institute for Space-Earth Environmental Research, Nagoya University)

220524-kobayashi-XeSAT_v3_compressed.pdf

14:30 Invited : MEG II experiment and liquid xenon detector, Sei Ban

Orateur: Sei Ban (ICEPP, The University of Tokyo)

MEGII_XeSAT2022_20220524.pdf

15:00 Invited : Status of the LUX-ZEPLIN (LZ) Experiment, Alexandre Lindote

Orateur: Alexandre Lindote (LIP)

ALindote_LZStatus_v2.pdf

15:30 → 16:00 0√2β session 1, chair Julien Masbou

15:30 Invited: Searching for Majorana neutrinos with nEXO, Andrea Pocar

nEXO will search for neutrinoless double beta (0νββ) decay in 5 tonnes of xenon enriched to 90% in the ββ-decaying isotope xenon-136 [1]. The observation of 0νββ decay would imply lepton number non-conservation of an otherwise conserved quantity in nature. At the same time, it would require neutrinos and anti-neutrinos to be the same particle, i.e., a Majorana fermion, a unique property among fundamental particles of the Standard Model. The observation of 0νββ decay could occur via different underlying microphysics. A unique mass mechanism exists for Majorana particles that could explain why neutrinos are so light and link the neutrino mass with the 0νββ decay rate.

nEXO operates with 5 tonnes of liquid xenon (LXe) in single-phase in a cylindrical time-projection chamber (TPC) with diameter and height of about 1.3m [1]. The nEXO TPC measures the energy, position, and topological multiplicity of each event. By the simultaneous event-by-event detection of ionization and scintillation nEXO will have an anticipated energy resolution of better than 1% at the ββ endpoint with a projected 0νββ decay half-life sensitivity of 1.35 x 10$^{28}$ years (90%CL) after 10 years of lifetime [2].

The ionization electrons are recorded by a segmented anode plane at one end of the TPC [3]. The prompt VUV scintillation photons (175 nm) are recorded by a ~4.5m$^2$ array of VUV-sensitive silicon photomultipliers (SiPMs) mounted on the cylinder barrel surface [4]. Both detection systems will be immersed in the LXe, along with the front-end readout electronics. An extensive nEXO R&D program has focused on two SiPM options: VUV4 Multi-Pixel Photon Counter (MPPC) from Hamamatsu Photonics Inc. (HPK) and VUV-HD SiPM from Fondazione Bruno Kessler (FBK). Both devices meet nEXO’s requirements. Integration of SiPMs into larger modules is currently being detailed.

The status of nEXO’s photodetector and charge readout system will be presented along with measured performance parameters and a general overview of the nEXO technology.

References
[1] nEXO Collaboration (S. Al Kharusi, et al.), arXiv:1805.11142v2 (2018)
[2] nEXO Collaboration (G Adhikari et al.), J. Phys. G: Nucl. Part. Phys. 49, 015104 (2022).
[3] nEXO Collaboration (Z. Li, et al.), JINST 14, P09020 (2019)
[4] nEXO Collaboration (G. Gallina, et al.), NIMA 940, 371 (2019)

Orateurs: Dr Andrea Pocar (University of Massachusetts, Amherst), Dr Thomas Brunner (McGill University and TRIUMF), Julien Masbou (SUBATECH)

20220524_XeSat-coimbra-nexo.pdf

16:00 → 16:20 Coffee break

16:20 → 17:50 0√2β session 1, chair Julien Masbou

16:20 Invited : Searching the Grail: A background free bb0nu experiment using Ba2+ tagging in a High-Pressure Xenon Chamber, Ivan Rivilla

Coimbra_2022_v6_IvanRivilla.pdf

16:50 Invited: Neutrinoless double-beta decay in a high-pressure gaseous Xenon-136 TPC: the PandaX-III experiment, Damien Neyret

Orateur: Damien Neyret (CEA Saclay, Université Paris-Saclay (FR))

talk_PandaX-III_XeSAT202_Neyret_20220524.pdf

17:20 Energy Resolution of the LZ detector to High Energy Electronic Recoils, Guilherme Pereira

The LUX-ZEPLIN (LZ) detector, currently operating at the SURF laboratory (South Dakota, USA), is a 10-ton liquid xenon dual-phase time projection chamber designed to search for dark matter particles. Due to its large mass and low backgrounds, the LZ scientific program also includes the search for the neutrinoless double beta decay of ¹³⁶Xe, highlighting the importance of achieving good energy resolution at ¹³⁶Xe Q$_{ββ}$ value of 2.46 MeV.

In this work, the detector's energy resolution is presented for single scatter interactions, with emphasis on the high energy search region (>2 MeV). The detector demonstrates a linear response to electron recoils in the 160–2700 keV energy range. A novel technique to correct the non-uniformity of the light collection in a scintillation detector, based on the knowledge of the light response functions of individual photosensors, will be described. The use of this technique allows to achieve state-of-the-art energy resolution for the whole fiducial volume at a very early phase of the detector operations. The comparison of the measured energy resolution in the 160–2700 keV energy range with other liquid xenon particle detectors and the predictions of the NEST model will also be presented.

Orateur: Guilherme Pereira (LIP)

GuilhermePereira_ Energy resolution of LZ detector for High Energy Electronic Recoils.pdf

17:35 R2D2: a xenon TPC for neutrinoless double beta decay search, Anselmo Meregaglia

Orateur: Anselmo Meregaglia (CENBG)

R2D2-XeSAT2022.pdf

mercredi 25 mai

09:30 → 11:00 Argon based experiments session, chair Cristina Monteiro

09:30 Invited: DarkSide-20k and the Future Liquid Argon Dark Matter Program, Stefano Davini

Orateur: Stefano Davini (INFN Genova)

StefanoDavini-XeSat2022.pdf

10:00 Invited: DUNE Experiment and Large Volume LAr Detectors, Saba Parsa

Orateur: Saba Parsa (University of Bern)

DUNE_XeSAT_PARSA_v2.pdf

10:30 Invited : Status of DEAP-3600 and development of the ARGO dark matter experiment, Mark Boulay

Orateur: Mark Boulay (Carleton University)

deap_argo_xestat_2022.pdf

11:00 → 11:20 Coffee break

11:20 → 12:20 Medical Imaging session, chair Dominique Thers

Président de session: Paola Ferrario (Donostia International Physics Center)

11:20 The XEMIS project, a three gamma imaging detector for medical applications, Nicolas Beaupère

Orateur: nicolas beaupere

slides_nicolasBeaupere_xesatt_mai2022_v07.pdf

11:35 Liquid xenon for nuclear medical imaging: outlooks on instrumentation, Mar-André Tétrault

Orateur: Marc-André Tétrault (Université de Sherbrooke)

20220525_Xesat_Tetrault_InstrumentationOutlook.pdf

11:50 Overview and Status of the PETALO project, Carmen Romo-Luque

Orateur: Carmen Romo-Luque (Universidad de Valencia)

XeSAT2022_Romo_slides.pdf

12:05 3DΠ, A Total-Body Positron Emission Tomography scanner, using Xenon-doped Liquid Argon detector, Azam Zabihi

Orateur: Azam Zabihi (Post-doc)

AzamZabihi-XeSAT2022.pdf

12:20 → 13:30 Lunch

13:30 → 15:00 R&D session 2, Chair Luis Fernandes

13:30 GPU-based optical simulation of the DARWIN detector, Igor Ostrovskiy

Orateur: Igor Ostrovskiy (University of Alabama)

Ostrovskiy_XeSAT2022.pdf

13:45 Rugged and radiopure amplification structures for large-area xenon chambers read out through electroluminescence, Sara Leardini

Orateur: Sara Leardini

XeSAT_Sara_Leardini.pdf

14:00 Wire Electrode Test and Simulation for the DARWIN experiment, Hiu-Sze Wu

Orateur: Hiu Sze Wu (Karlsruhe Institute of Technology (KIT))

Hiu_Sze_Wu_20220525_XeSAT2022_v8.pdf

14:15 Charge detection via proportional scintillation in a single-phase liquid xenon TPC, Florian Tönnies

Orateur: Florian Tönnies (University of Freiburg)

20220524_XeSAT22_FlorianTönnies.pdf

14:30 The PANCAKE Detector Development Platform for multi-ton LXe Detectors, Julia Mueller

Orateur: Julia Mueller

PANCAKE_XeSAt_Mueller.pdf

15:00 → 18:00 Social program

19:30 → 23:00 Conference dinner

jeudi 26 mai

09:30 → 11:00 0√2β session 2, chair Julien Masbou

09:30 Invited: AXEL: high pressure xenon gas time projection chamber for neutrinoless double beta decay search, Sei Ban

Orateur: Sei Ban (ICEPP, The University of Tokyo)

XeSAT2022_AXEL_Ban.pdf

10:00 Invited : The NEXT experiment for ββ0ν searches: status and perspectivesstatus, Alberto Uson

Orateur: Alberto Usón Andrés

NEXT_talk_AUson_xesat.pdf

10:30 Invited: Neutrinoless double-beta decay search results from KamLAND-Zen with 1 ton-year 136Xe exposure, Hideyoshi Ozaki

Orateur: Hideyoshi Ozaki (Tohoku university)

XeSAT2022_Ozaki.pdf

11:00 → 11:20 Coffee break

11:20 → 12:20 Xenon based experiments session 2, chair Sara Diglio

11:20 Invited : Emission of Single and Few Electrons in XENON1T and Limits on Light Dark Matter, Jean-Philippe Zopounidis

Orateur: Jean-Philippe Zopounidis (LPNHE)

presentation_JPZopounidis_XeSat2022_v2.pdf

11:50 Invited : Gaseous detectors for neutrino Physics at the ESS, the GanESS project, Francesc Monrabal

Orateur: Francesc Monrabal

GanESS_Coimbra_May2022.pdf

12:20 → 13:30 Lunch

13:30 → 15:45 Fundamental measurements session, chair Fernando Amaro

13:30 Invited: Studies of Neutral Bremsstrahlung emission in Xenon, C.M.B. Monteiro

Orateur: Cristina M Bernardes Monteiro (University of Coimbra)

14:00 A measurement of the mean electronic excitation energy of liquid xenon, Kevin Thieme

Orateur: Kevin Thieme (University of Hawai'i at Mānoa)

XeSAT2022_W-value_Kevin_Thieme.pdf

14:15 The DireXeno Experiment - Measuring the Temporal and Directional Structure of Scintillation from Liquid Xenon

The scintillation process from Liquid Xenon (LXe) plays a major role in particle detectors. Features of it are used to estimate the energy and the type of the detected particle. An accurate model of the particle energy deposition in the LXe medium and the scintillation following it is crucial for the detector’s background discrimination power and its sensitivity. DireXeno is an experiment that aims at studying the temporal and directional pattern of scintillation from LXe. The heart of the apparatus is a 1cm radius LXe target which is observed by 20 PMTs that surround it. The target is irradiated by gamma and neutron sources. We present here a process that we developed which utilizes a trained neural network to estimate the times of the photon emissions in a scintillation event based on the signals acquired by the PMTs. We show the average temporal structure of scintillation events with an emphasis on its variation with the interaction energy and type. This enables us to study a model of the temporal structure which incorporates the exponential components of the two excited states of LXe with the non-exponential recombination response, which is energy dependent.

Orateur: Gera Koltman (PhD student)

DireXeno

14:30 Primary scintillation in Xe for electrons and alpha-particles, C.A.O. Henriques

Orateur: C.A.O. Henriques (University of Coimbra)

14:45 The MICRORADON Project, Jose Busto

Orateur: Jose Busto (CPPM)

TheMicroRadonProject_ J.Busto.pdf

15:00 Studies of primary and secondary scintillation yield in krypton, R.D.P. Mano

Orateur: R.D.P. Mano (University of Coimbra)

xesat2022_krypton.pdf

15:15 Time and band-resolved scintillation in time projection chambers based on gaseous xenon, Diego Gonzalez Diaz

Orateur: Diego Gonzalez Diaz (IGFAE)

TimeAndBandResolvedXenon.pptx

15:30 Dual-Polarity Ion Drift Chamber: Experimental results with Xe-SF6 mixtures, Afonso Marques

Orateur: Afonso Marques (LIP)

XeSAT2022_Afonso.pdf