4 research outputs found

    Towards Precision Muonic X-Ray Measurements of Charge Radii of Light Nuclei

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    Precision studies of the properties of nuclei are essential both for understanding nuclear physics at low energy, and for confronting experiment and theory in simple atomic systems. Such comparisons advance our understanding of bound-state quantum electrodynamics and are useful for searching for new physics beyond the Standard Model. The energy levels of muonic atoms are highly susceptible to nuclear structure, especially to the RMS charge radius. The radii of the lightest nuclei (Z=1,2Z=1,2) have been determined with high accuracy via laser spectroscopy in muonic atoms, while those of medium mass and above, from X-ray spectroscopy with semiconductor detectors. In this communication we present a new experiment aiming at precision measurements of the radii of light nuclei 3≀Z≀103 \leq Z \leq 10 via single-photon energy measurements with cryogenic microcalorimeters; a quantum sensing technology capable of high efficiency and outstanding resolution for low-energy X-rays

    VÀgledningens betydelse för rörlighet pÄ arbetsmarknaden

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    Denna studies syfte Àr att se pÄ rörlighet pÄ arbetsmarknaden utifrÄn ett individperspektiv och hur vÀgledning kan vara till stöd pÄ individnivÄ. De frÄgestÀllningar arbetet behandlar innefattar sju individers erfarenheter av arbete,vÀgledning och utbildning. UtifrÄn dessa faktorer behandlar vi teorier kring rörlighet och matchning till arbetsmarknaden. Vi har genomfört en litteraturstudie i kombination med en empirisk undersökning med sju kvalitativa intervjuer. De slutsatser vi drar Àr att vÀgledning kan pÄverka individers rörlighet pÄ arbetsmarknaden och att vÀgledning kan bidra till att individer matchas till utbildning och arbete. Fem av sju intervjuade har saknat vÀgledning vid nÄgot tillfÀlle, andra faktorer som efterfrÄgas Àr personliga möten med ett professionellt bemötande samt relevant innehÄll i vÀgledningen. The purpose of this studie is to research the mobility in the labour market in an individual perspective, and to see how guidance can support the individual. The questions treated in this studie includes seven individuals' experiences of work, counselling and education. On the basis of these factors, we treat theories around mobility and matching to the labour market. We have implemented a literature study combined with an empirical survey with seven qualitative interviews. The conclusions we draw is that counselling can influence individuals' mobility on the labour market and that counselling can contribute so that individuals are matched to education and work. Five out of seven interviewed has lacked counselling at some occasion, other factors requested is personal meetings with a professional treatment and relevant contents in the counselling
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