2020-08-18
09:35 |
The HEV Ventilator
/ Buytaert, J (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Collins, P (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Abed Abud, A (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Allport, P (Particle Physics Group, School of Physics and Astronomy, University of Birmingham, B15 2TT, United Kingdom) ; Pazos Alvarez, A (Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, 15782 Galicia, Spain) ; Akiba, K (Nikhef National Institute for Subatomic Physics, Amsterdam, 1098 XG, Netherlands) ; Augusto de Aguiar Francisco, O (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Bay, A (Institute of Physics, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland) ; Bernard, F (Institute of Physics, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland) ; Baron, S (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) et al.
HEV is a low-cost, versatile, high-quality ventilator, which has been designed in response to the COVID-19 pandemic. The ventilator is intended to be used both in and out of hospital intensive care units, and for both invasive and non-invasive ventilation. [...]
EP-Tech-Note-2020-002.-
Geneva : CERN, 2020 - 8 p.
Fulltext: PDF;
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2020-04-01
08:59 |
The HEV Ventilator Proposal
/ Buytaert, J (CERN)
/HEV Collaboration
We propose the design of a ventilator which can be easily manufactured and integrated into the hospital environment to support COVID-19 patients. The unit is designed to support standard ventilator modes of operation, most importantly PRVC (Pressure Regulated Volume Control) and SIMV-PC (Synchronised Intermittent Mandatory Ventilation) modes. [...]
EP-Tech-Note-2020-001.-
Geneva : CERN, 2020 - 14 p.
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2019-07-30
15:42 |
Estimation of the Optical Aging Rate for 1.00 mm Plastic Scintillating Fibre of Type SCSF-78M
/ Shinji, O (Kuraray Co., Ltd.)
Natural aging, in absence of ionizing radiation, leads to a very slow decrease of the optical transparency in plastic scintillating fibres. This aging phenomenon is attributed to chemical reactions of the fibre core material polystyrene, which can be a photo-reaction by natural light or an oxidation reaction with oxygen diffused in from the surrounding atmosphere. [...]
EP-Tech-Note-2019-002.-
Geneva : CERN, 2019 - 23 p.
Fulltext: DOCX.PDF;
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2019-02-12
12:17 |
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2018-02-26
12:05 |
Elastic stability and HEP detectors: a primer
/ Wertelaers, P (CERN EP-DT)
Destabilizing -- or "buckling" -- phenomena can compromise the quality of a physics detector long before the point of collapse has been reached. We rehearse on the two types of buckling : snap-through versus bifurcation. [...]
EP-Tech-Note-2018-005.-
Geneva : CERN, 2018 - 1 p.
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2018-02-23
15:35 |
Downward transfer of a sub-cooled cryoliquid
/ Wertelaers, P (CERN EP-DT)
An alternative is proposed to the traditional transfer of a cryo fluid in gaseous -- and warm -- form, a method of low productivity and high energy cost. In order to prevent the much-feared geysering, focus is on sub-cooling of the liquid, and the safe maintaining of such state all along the journey [...]
EP-Tech-Note-2018-004.-
Geneva : CERN, 2016 - 19 p.
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2018-02-23
15:33 |
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2018-02-23
15:31 |
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2018-02-23
15:26 |
Simple-topology switched-mode DC-DC converters : dynamics and control
/ Wertelaers, P (CERN EP-DT)
After a rehearsal of the functioning mode and characteristics of the buck-boost and buck converters, we attempt to formalize a lower-frequency description of the converter, by smoothing the waveforms containing switching ripple. This framework enables the construction of a linear time-invariant computational model, to which voltage-regulating actions can then be added. [...]
EP-Tech-Note-2018-001.-
Geneva : CERN, 2018 - 26 p.
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2015-05-05
11:04 |
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