Search results for "TEE"
showing 10 items of 8497 documents
Avoimen tieteen eri puolet
2022
Näkökulmia tutkijoiden ja tutkittavien väliseen vuoropuheluun
2021
Konfliktit ja vaikeat tunteet muistitietohaastatteluissa
2022
Avoin julkaisutoiminta Jyväskylän yliopistossa 2014
2015
The MARA-LEB ion transport system
2020
A low-energy branch is under development for the MARA vacuum-mode recoil separator at the Accelerator Laboratory of the University of Jyväskylä. This development will allow for the study of proton-rich nuclei through laser ionisation spectroscopy and mass measurements. After stopping and extraction from a buffer gas cell, the ions of interest will be accelerated and transported to dedicated experimental setups by an ion transport system consisting of several focusing, accelerating and mass-separating elements. This article presents the current design and simulations for the ion transport. peerReviewed
Mass testing and characterization of 20-inch PMTs for JUNO
2022
Main goal of the JUNO experiment is to determine the neutrino mass ordering using a 20 kt liquid-scintillator detector. Its key feature is an excellent energy resolution of at least 3% at 1 MeV, for which its instruments need to meet a certain quality and thus have to be fully characterized. More than 20,000 20-inch PMTs have been received and assessed by JUNO after a detailed testing program which began in 2017 and elapsed for about four years. Based on this mass characterization and a set of specific requirements, a good quality of all accepted PMTs could be ascertained. This paper presents the performed testing procedure with the designed testing systems as well as the statistical charac…
Extending Physics Potential of Large Liquid Scintillator Neutrino Detectors
2016
Production of a 15C radioactive ion beam based on 18O(n, α)
2019
In the context of the SPIRAL2 radioactive beam facility the production rate of the neutron-rich 15C nucleus by 18O(n,α) has been investigated. In a water target of 20 cm3, enriched in 18O and placed behind the neutron converter, a rate of a few 1010 nuclei per second can be reached with 1mA of 40MeV deuterons. A 18O(n,α) cross-section based on the activation method is proposed. It is intermediate between the highest and lowest evaluations available to date. peerReviewed
Katsaus : Valokuvaelisitaatio teemahaastattelussa
2022
Kykeneekö viherala hyödyntämään tieteellistä tietoa?
2023
Viherala on merkittävä ja kasvava toimiala. Ilmastonmuutos ja lajien monimuotoisuuden suojelu lisäävät entisestään viheralan painoarvoa. Viheralan kehittäminen edellyttää monipuolista tieteellistä tutkimusta ja kykyä soveltaa uutta tietoa luovasti. Tutkimusta tehdään huomattavan paljon mutta sen vaikuttavuudesta tiedämme suhteellisen vähän. Tämä näkyi myös kevään 2023 Viherpäivien teemassa: Viisas, älykäs, vihreä – muuttuuko tieto teoiksi? Tässä artikkelissa filosofi, professori emeritus Antti Hautamäki selventää, mitä tieteellinen tutkimus on ja miten sitä voidaan soveltaa viheralalla. nonPeerReviewed