نتایج جستجو برای: ionisation

تعداد نتایج: 2202  

2006
C. Rubbia

This novel type of particle “cooling”, called Ionization Cooling, is applicable to slow ( ) ions stored in a small ring. The many traversals through a thin foil enhance the nuclear reaction probability, in a steady configuration in which ionisation losses are recovered at each turn by a RF-cavity. For a uniform target “foil”, typically few hundred v ≈ 0.1c μg cm thick, transverse betatron oscil...

Journal: :Le Journal de Physique Colloques 1989

Journal: :Monthly Notices of the Royal Astronomical Society 1924

1999
P. N. Best H. J. A. Röttgering M. S. Longair

An analysis of the kinematics and ionisation state of the emission line gas of a sample of 14 3CR radio galaxies with redshifts z ∼ 1 is carried out. The data used for these studies, deep long–slit spectroscopic exposures from the William Herschel Telescope, are presented in an accompanying paper. It is found that radio sources with small linear sizes ( ∼ < 150kpc) have lower ionisation states,...

Journal: :Radiation protection dosimetry 2011
E Fuks Y S Horowitz A Horowitz L Oster S Marino M Rainer A Rosenfeld H Datz

The shape of composite peak 5 in the glow curve of LiF:Mg,Ti (TLD-100) following (90)Sr/(90)Y beta irradiation, previously demonstrated to be dependent on the cooling rate used in the 400°C pre-irradiation anneal, is shown to be dependent on ionisation density in both naturally cooled and slow-cooled samples. Following heavy-charged particle high-ionisation density (HID) irradiation, the temper...

Journal: :The Analyst 2010
F M Green T L Salter I S Gilmore P Stokes G O'Connor

In desorption electrospray ionisation (DESI) the interaction between the electrospray and the surface is key to two important analytical parameters, the spatial resolution and the sensitivity. We evaluate the effect of the electrospray solvent type, organic solvent fraction with water, analyte solubility and substrate wettability on DESI erosion diameter and material transferral into useful ion...

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