Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6  ×  6  ×  6 m 3 liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7 m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different wavelength shifters, such as PEN and TPB, and the use of Xe-doped LAr, considering its future use in giant LArTPCs. The scintillation light production and propagation processes are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties

Separation of track- and shower-like energy deposits in ProtoDUNE-SP using a convolutional neural network

Liquid argon time projection chamber detector technology provides high spatial and calorimetric resolutions on the charged particles traversing liquid argon. As a result, the technology has been used in a number of recent neutrino experiments, and is the technology of choice for the Deep Underground Neutrino Experiment (DUNE). In order to perform high precision measurements of neutrinos in the detector, final state particles need to be effectively identified, and their energy accurately reconstructed. This article proposes an algorithm based on a convolutional neural network to perform the classification of energy deposits and reconstructed particles as track-like or arising from electromagnetic cascades. Results from testing the algorithm on data from ProtoDUNE-SP, a prototype of the DUNE far detector, are presented. The network identifies track- and shower-like particles, as well as Michel electrons, with high efficiency. The performance of the algorithm is consistent between data and simulation

Design, construction and operation of the ProtoDUNE-SP Liquid Argon TPC

The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber (LArTPC) that was constructed and operated in the CERN North Area at the end of the H4 beamline. This detector is a prototype for the first far detector module of the Deep Underground Neutrino Experiment (DUNE), which will be constructed at the Sandford Underground Research Facility (SURF) in Lead, South Dakota, U.S.A. The ProtoDUNE-SP detector incorporates full-size components as designed for DUNE and has an active volume of 7 × 6 × 7.2 m3. The H4 beam delivers incident particles with well-measured momenta and high-purity particle identification. ProtoDUNE-SP's successful operation between 2018 and 2020 demonstrates the effectiveness of the single-phase far detector design. This paper describes the design, construction, assembly and operation of the detector components

O desafio de implantar a sistematização da assistência de enfermagem sob a ótica de discentes El desafío de implantar la sistematización de la asistencia de enfermería según la óptica de los discentes The challenge of to implant the nursing assistance systematization according to the students' view

Estudo com abordagem qualitativa objetivando discutir aspectos relativos ao projeto de implantação da Sistematização da Assistência de Enfermagem - SAE em uma maternidade pública, segundo a ótica de discentes de enfermagem da UFPI. O estudo foi desenvolvido com 28 alunos, por meio de relatos escritos, agrupados em três categorias, cuja análise dos conteúdos possibilitou a caracterização das unidades de significação. Os resultados mostraram que a SAE, apesar da resistência inicial dos profissionais de saúde à sua adoção, favoreceu o aprendizado do cuidado de enfermagem e a assistência oferecida à clientela e repercutiu na satisfação discente, das usuárias do serviço e de familiares. Na operacionalização da SAE foram apontadas dificuldades relativas ao preenchimento dos formulários adotados. Os discentes valorizaram a SAE como instrumento metodológico necessário ao desempenho da prática profissional, bem como consideraram que a participação na implantação do projeto tornou oportunas as condições para exercitá-la com autonomia na vida profissional.<br>Estudio con abordaje cualitativa con objetivo de discutir los aspectos relativos al proyecto de implantación de la Sistematización de la Ayuda de Enfermería - SAE en una maternidad pública, según la óptica de discentes de enfermería de la UFPI. El estudio fue desarrollado con 28 estudiantes, por medio de relatos escritos, agrupados en tres categorías, cuyo análisis del contenido hizo posible la caracterización de las unidades de significación. Los resultados demostraran que la SAE, aunque la resistencia inicial de los profesionales de salud a su adopción, favoreció el aprendizaje del cuidado de enfermería y la ayuda ofrecida a la clientela y repercutió en la satisfacción de los discentes, de las usuarias del servicio y de la familia. En la operacionalización de la SAE fueran apuntadas dificultades relativas a rellenar el formulario adoptado. Los discentes valoraran la SAE como instrumento metodológico necesario al funcionamiento de la práctica profesional, bien como consideraron que la participación en la implantación del proyecto hizo posible las condiciones para ejercitarla con autonomía en la vida profesional.<br>Study with qualitative approach objectifying to argue relative aspects to the project of implantation of the Systematization of the Assistance of Nursing - SAE in a public maternity, according to the view of the nursing students of the UFPI. The study was developed with 28 students, by written stories, grouped in three categories, whose analysis of the contents made possible the characterization of the signification units. The results showed that the SAE, although the initial resistance of the health professionals to its adoption, favored the learning of the nursing care and the assistance offered to the clientele, reflecting in the satisfaction of the students, of the users of the service and of the family. In the operating of the SAE was pointed difficulties related to the fulfilling of the adopted. The students valued the SAE as a necessary methodological instrument to the performance of the professional practice, as well had considered that the participation in the implantation of the project make possible the conditions to exercise it with autonomy in the professional life

Prática assistencial de enfermagem: problemas, perspectivas e necesidade de sistematização Atención de enfermería en la practica: problemas, perspectivas y necesidad de sistematización Nursing care in practice: problems, perspectives, and need for systematization

Estudo qualitativo descritivo realizado para subsidiar a implantação da sistematização da assistência de Enfermagem em um hospital universitário. Utilizou-se questionários abordando atividades, percepção sobre Enfermagem e cliente, conhecimento e aplicação do processo de Enfermagem e problemas decorrentes da assistência não sistematizada. Os resultados identificaram que as atividades dos enfermeiros baseiam-se no tecnicismo e na administração do serviço; que a enfermagem foi relacionada com atendimento às necessidades humanas básicas e holismo, sendo o cliente definido como o indivíduo que necessita de cuidados; que a maioria conhecia na teoria o processo de Enfermagem, mas não o aplicou na prática. Os problemas mais citados decorrentes da não sistematização da assistência foram: comprometimento da qualidade da assistência, desorganização do serviço e conflito de papéis.<br>El estudio cualitativo descriptivo realizado para subvencionar la implantación de la sistematización de la asistencia del cuidado de enfermería en un hospital universitario. Fueron utilizados cuestionarios que acercaban la actividades, la opinión del oficio de enfermera y paciente, el conocimiento y lo uso del proceso de enfermería y de los problemas decurrentes de la no sistematización. Los resultados identificaron que las actividades de enfermería están basadas en el tecnicismo y en la gerencia del servicio; que el oficio de enfermera estaba relacionado con la atención a las necesidades basicas de los seres humanos y el holismo, siendo el paciente definido como el individuo que necesita cuidados; que la mayoría conocia en teoría el proceso de enfermería, pero no lo aplicó en la práctica. Los problemas más citados decorrientes de la sistematización de la asistencia fueron: comprometimiento de la calidad de la asistencia, la desorganización del servicio y del conflicto de papeles.<br>Descriptive and qualitative study carried out to subsidize the implementation process of Nursing systematization in a University Hospital. It was used questionnaires approaching activities, perception on Nursing and customer, knowledge and application of the Nursing process and problems which are consequence of non systemized assistance. Results identified that the nurses activities are based on the technique and on the service administration; that nursing was related to the help of the human beings' basic needs and holism, being the customer defined as the one that needs care; that the majority of nurses knew, in theory, the Nursing process, but did not apply it in practice. The most mentioned problems which were consequence of the non systemized assistance were the following: the quality assistance detriment, the service disorganization and the conflict of roles