Research

Phase 2

The main objective of the Phase 2 project is to create an integrated multidisciplinary initiative for Advanced Instrumentation in High Energy Physics focused on Advanced LAr purification and photodetections for LBNF-DUNE. This multidisciplinary team of outstanding Scientists, Engineers and Technicians from several Universities/Research Centers and Companies will perform R&D, testing, construction and commissioning for the DUNE Photon Detection System and LAr Purification, Regeneration and Condensation for Proximity Cryogenics of LBNF-DUNE according to the deliverables in the Phase 2 of the agreement ICRADA and to the Conceptual Project Design and In/Out scope matrix document prepared IFGW/Unicamp, Equatorial Sistemas Ltda;/Akaer and FRA . For that to be achieved, the following activities will be systematic developed during  this project:

– Performance tests and evaluation of the innovative filter media produced in Phase 1 at PuLArC-IFGW for applications in massive LAr cryostats such as Iceberg, ProtoDUNE and ultimately in LNBF-DUNE.

– Simulations and extrapolation of results in PuLArC-IFGW to LNBF-DUNE for the real-size systems such as Iceberg, ProtoDUNE and ultimately in LNBF-DUNE.

– Applying Conceptual Project Design prepared in Phase 1 to perform R&D, testing, construction and commissioning (including Facility Technical description, Facility lay-out, facility assembly process description, Master Plan encompass detailing, implementation and commissioning phases and commercial data) to complete engineering, design, manufacturing, testing, shipping and delivery of the following components: LAr purification 1/2,  GAr purification 1/2 and Regeneration System 1/2.

Phase 1

To tackle the specific goals of the Research Grant (Auxílio Regular de Pesquisa Especial FAPESP # 2020/01609-2) by IFGW/Unicamp ICRADA Phase 1, the Unicamp team organized themselves into four working groups managed by Prof. Dr. Pascoal Pagliuso, the Professor/Researcher responsible for the Research Grant (Auxílio Regular de Pesquisa Especial FAPESP # 2020/01609-2) by IFGW/Unicamp. The planned activities for each working group are described below:

Working Group (WG) # 1: Responsible for performing calculations, simulations and project conceptual design of the Fluid-dynamic LAr circulation containing two pumps systems; Proposing, testing and validating the temperature monitoring of purification systems. WG I is composed by Prof. Dr. Thiago Alegre, Physicist IFGW/Unicamp, Prof. Dr. Gustavo Wiederhecker, Physicist, IFGW/Unicamp, Prof. Dr Dirceu Noriler, Chemical Engineer – FEQ/Unicamp Prof. Dr. Renato Soccol Junior, Chemical Engineer – FEQ/Unicamp and MSc. Pedro Bianchi Neto, Chemical Engineer – FEQ/Unicamp.

Working Group (WG) # 2: Responsible for synthesizing, characterizing and producing (or purchasing) candidate materials to be used as a purification media; Proposing, testing and validating the media to be used in the purification systems. WG II is composed by Profa. Cris Adriano, Physicist (IFGW – Unicamp) Prof. Dr. José Mansur Assaf, Chemical Engineer (UFSCar), Prof. Dr. Dilson Cardoso, Chemist (UFSCar), Prof. Dr. Elisabete Assaf, Chemical Engineer (IQ-USP-SC), Prof. Dr. Cristhiane Reis, Industrial Chemist (UFSJ), Dr. Ivana Cruz, Chemical Engineer (UFSCar) and Dr. Rosemberg Chemical Engineer Gonçalves (UFSCar).

Working Group (WG) # 3: Responsible for design and testing of the LAr and GAr purification and regeneration systems; Production and test of small-scale prototypes; Conduction simulations and extrapolation of results and conceptual design for the real-size systems and for the underground.  WG III is composed by Krystal Brant (CBPF), Mechanical Engineer, Dr. Magda Fontes, Physicis (CBPF), Prof. Dr. Ettore Segreto, Physicist (IFGW), André Augusto Physical Engineer (Equatorial Sistemas Ltda.), Gustavo Carrara – Mechanical Engineer – (IFGW) and Cesar Aguiar, Vaccum Technitian (IFGW).

Working Group (WG) # 4: Responsible for testing materials, pumps and piping for gas/liquid Ar circulation and storage in order to guarantee the proper operation of the reduced-size test systems.  Production and construction of purity monitors to be used on small scale prototypes; Contribution to slow control development.  WG IV is composed by Dra Dr. Ana Amélia Machado,  MSc. Heriques Frandini, Physicist (UFABC/IFGW/FRA), Frederico Demolin, Electrical Engineer (IFGW).

 

 

 

PMT – Signal – LAR – Purification – 3h – Pumping through Filter 1 – BASF – Filter 2- Li-FAU

 

 

PMT – Signal – LAR – Purification – 3h – Pumping through Filter 1 – BASF – Filter 2- Li-FAU or 4A – N2 contamination experiment

PMT – Signal – LAR – Purification – 3h – Pumping through Filter 1 – BASF – Filter 2- R-LDH  – O2 contamination experiment

 

 

Ce-doped R-LDH experiments – Feb, 2024.

 

LIDINE 2024: LIght Detection In Noble Elements 26 – 28 de ago. de 2024, São Paulo-SP-Brazil

Ana Caffer et al, Comparing the performance of CuO dispersive media for O2 capturing in Liquid Argon

Flor de Maria Blaszczyk (Fermlab)Dirceu Noriler (UNICAMP)et al., Exploring N2 Capturing in Liquid Argon using Li-FAU Mol Sieve in the Iceberg Cryostat, presented by Pedro Bianchi (FEQ/Unicamp).

 

Reference:

Article about N2/O2 contamination in LAr:

https://drive.google.com/file/d/1gL299XhB8V2jpJJuhr5YCqiCECc8gZcQ/view?usp=share_link