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Observational study of a gas giant exoplanet showing ongoing atmospheric mass loss through measurements of the metastable helium 1083 nm line during transits.
Year: 2021
Authors: S. Vissapragada, H. A. Knutson, A. Oklopčić
Type of Document: Research Article
Field: Exoplanetary Science / Astronomy
Observatory: Palomar Observatory
Telescope: 200” Hale Telescope
Method: He 1083 nm line transit spectroscopy
Target: Gas giant HAT-P-18b
Observation Date: January 11, 2021
License: Creative Commons Attribution 4.0 International (CC-BY 4.0)
Price: 8 / 10 USD
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Mechanical Analysis of Helium Inlet and Outlet Structures in the Central Solenoid of the Next-Generation Fully Superconducting Tokamak
Year: 2023
Region / City: Hefei, PR China
Theme: Superconducting Tokamak, Plasma Physics
Document Type: Research Paper
Institution: Institute of Energy, Hefei Comprehensive National Science Center, Institute of Plasma Physics, Chinese Academy of Sciences
Author: Yi Yu, Houxiang Han
Target Audience: Researchers, Plasma Physicists, Engineers in Fusion Energy
Period of Validity: Not applicable
Approval Date: Not specified
Modification Date: Not specified
Regulation Impact Statement – Proposed mandatory safety standard on non-refillable helium cylinders, October 2022
Year: 2022
Region / Country: Australia
Subject: Consumer product safety, helium cylinders
Document type: Regulation Impact Statement
Issuing authority: Australian Competition and Consumer Commission (ACCC)
Author: ACCC
Target audience: Policymakers, regulators, industry stakeholders
Implementation period: Upon ministerial approval
Consultation: Wholesalers, retailers, coroners, public submissions
Purpose: To evaluate and recommend mandatory safety standards for non-refillable helium cylinders
Regulatory framework: Australian Consumer Law (ACL)
Date of approval: October 2022
System Definition – Requirements for Target Helium Cooling Systems
Year: Not specified
Region / Country: Sweden
Organization: European Spallation Source (ESS)
Department: Target Division
Document Type: System definition and requirements specification
System: Target Helium Cooling Systems
Sub-systems: Target Primary Cooling (1010); Target Primary Cooling Pressure Control (1011); Helium Injection (1013)
Author: Jens Harborn
Author Role: Work Unit Leader – Target Helium Cooling
Reviewers: Ulf Oden; Per Nilsson
Reviewer Roles: Lead Engineer – Target Systems; CFD Specialist – Target Station
Approver: Eric Pitcher
Approver Role: Deputy Head of Target Division
Project: ESS Target Station Systems
Main Topics: Cooling system functions; pressure control; helium circulation; radiation safety; system interfaces; engineering requirements
Standards and Codes: RCC-MRx Class 3; EN 13445; EN 13480; ESS Technical and Quality Regulations
Stakeholders: Target station operators; maintenance personnel; waste management personnel; radioprotection team; engineering work package leaders
Lifecycle Phases Covered: Design; prototyping; manufacturing; installation; commissioning; operation; decommissioning
Procedure for transferring liquid helium to TRIUMF Transfer Dewars
Year: 2026
Location: TRIUMF, Vancouver, Canada
Subject: Cryogenic helium handling
Document type: Operational procedure
Department: Physical Science Division (PSD)
Author: TRIUMF Cryogenics Team
Intended audience: Laboratory personnel handling liquid helium
Equipment: Mother Dewar, Transfer Dewars, Level controllers, Solenoid valves, Pneumatic actuators
Safety requirements: Personal protective equipment (PPE) including face shield, cryogenic gloves, apron, high-topped shoes
Operational conditions: Liquefier running, pressure control settings, autofill procedure
Associated documents: Safety Note 5.3 “Safe Handling and Use of Cryogenic Liquefied Gases” (Document-862)
Supporting Information: Synthesis and Helium Separation Performance of Polycrystalline Membranes of the High Precision Molecular Sieve MIL-116(Ga)
Document type: Supporting information for a scientific research article
Field of study: Materials science; membrane technology; metal–organic frameworks
Research topic: Synthesis and gas separation performance of MIL-116(Ga) membranes
Authors: Ayisha Komal; Laura Calderón-Rodríguez; Franziska Scheffler; Eren Grossmann; Roman Sajzew; Ralf Wyrwa; Thomas Hoyer; Felix H. Schacher; Alexander Knebel
Corresponding author: Alexander Knebel
Affiliated institutions: Friedrich Schiller University Jena; Leibniz Institute of Photonic Technology; Fraunhofer Institute for Ceramic Technologies and Systems; Helmholtz Institute for Polymers in Energy Applications Jena
Institution location: Jena, Germany; Hermsdorf, Germany
Organizations: Otto Schott Institute of Materials Research; Institute of Organic Chemistry and Macromolecular Chemistry; Center for Energy and Environmental Chemistry; Fraunhofer IKTS
Materials studied: MIL-116(Ga) metal–organic framework membranes supported on porous Al2O3
Experimental methods: solvothermal synthesis; APTES surface functionalization; XRD characterization; SEM characterization; gas permeation testing
Equipment mentioned: Rigaku MiniFlex diffractometer; JEOL 6510LV scanning electron microscope; TESCAN MIRA FE-SEM; Leica EM ACE600 sputter coater
Chemical compounds: gallium(III) nitrate hydrate; mellitic acid; APTES; toluene; hydrochloric acid; acetone
Measured properties: gas permeance; ideal selectivity; helium separation performance
Analyzed gases: helium; methane and other gases used for permeation measurements
Figures: XRD patterns and SEM images of MIL-116(Ga) synthesized under varying conditions
Tables: synthesis conditions, gas permeance values, selectivity data, and comparison with other MOF-based membranes
Sections included: materials; synthesis procedures; surface functionalization; membrane preparation; structural and morphological characterization; gas permeation calculations and tests; references
Topics: Metastable HAT-P-18b Helium