Lifetime measurements
Lifetime measurements probing shape coexistence in 175Au, 174Pt and 175Pt
... The accelerator laboratory at the University of Jyv¨askyl¨a, Finland, provides a set- ting for the lifetime measurements of excited states in nuclei far from stability. The facility consists of the JUROGAM ...
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Temperature and lifetime measurements in the SSX wind tunnel
... FIG. 1. Schematic of the SSX device in the wind tunnel configuration. The entire device is divided into three main sections: (i) plasma source region, (ii) turbulence studies region and (iii) the compression region. In ...
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Precision Lifetime Measurements Using LaBr3 Detectors With Stable and Radioactive Beams
... Such measurements can be compared with predic- tions of the single-particle make-up of nuclear excited state wavefunctions as predicted in, for example, trun- cated, valence-restricted shell model descriptions of ...
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Nuclear lifetime measurements from data with independently varying observation times
... As experiments start probing nuclei further away from the line of stability there is an inevitable drop in production cross-sections [1]. Therefore, obtaining estimates of the mean lifetimes of nuclei or nuclear states ...
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Transition lifetime measurements and correlation experiments with ultra cold metastable helium
... The use of a continuously outcoupled beam enables all the atoms to be detected without saturation by simply reducing the flux. However, the measurements are now being performed on a beam, rather than a cloud, and ...
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The Generalized Centroid Difference method for lifetime measurements via γ-γ coincidences using large fast-timing arrays
... (centroid) of the PRF P(t). The experimental PRF pro- vides important information on timing characteristics and is obtained for lifetimes which are smaller than 1 ps (sys- tematic errors are expected to be larger). For ...
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Lifetime measurements in mass regions A=100 and A=130 as a test for chirality in nuclear systems
... ses. The ordering of the transitions in the level scheme was determined according to γ-ray relative intensities, γ-γ co- incidence relationships, and γ-ray energy sums. The elec- tric or magnetic character and ...
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Lifetime measurements on fission fragments in the A ∼ 100 region
... Abstract. Lifetimes of first 4 + and 6 + states have been measured in neutron-rich isotopes of Zr, Mo, Ru and Pd using the recoil distance Doppler shift method at GANIL. The nuclei were produced through a fusion-fission ...
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Some lifetime measurements of isomeric states in the rare earth region with magnetic coincidence beta ray spectrometers
... spectrometers and an associated fast-slow coincidence system utilizing a time-to-pulse-height converter. The half-lives of the 8. 40-, 118- and 139-keV levels in Tm 1 69 were determined to be (4. 13 ± 0. 12) nsec, (63 ± ...
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Neutron radioactivity—Lifetime measurements of neutron-unbound states
... and depends on the lifetime, �(�) with � = �∕ (���). The decays can be measured and could be disentangled to inside and outside contributions to deduce the lifetime �. This analytical form of �(�) does not ...
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Lifetime measurements in A∼100 nuclei using LaBr3(Ce) arrays.
... figure 2 shows the sum of the background-subtracted time-di ff erence projections of the 579- and 1090 keV transitions which have been fitted to give a level lifetime of τ = 9.5(7) ns [5]. The hindrances of the ...
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ISOLDE highlights and the HIE-ISOLDE project
... nucleus 21 Al by resonance elastic and inelastic scattering using an active target. For middle mass nuclei, the validity of a shell model description around 78 Ni will be studied and shape coexistence in the region A = ...
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Minority carrier lifetime in indium doped silicon for photovoltaics
... “ lifetime ” ) in indium doped silicon for PV appli- ...effect measurements to determine the concentration of ionized indium, and make injection ‐ dependent lifetime measurements on the same ...
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Measurement of absolute transition probabilities for lines of Fe II
... 5 LIFETIME MEASUREMENTS The light decay curve was obtained by moving the mono- chromator along the lathe bed and measuring the light intensity of the beam, relative to the monitor curren[r] ...
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Defects Investigation in Neutron Irradiated Reactor Steels by Positron Annihialtion (O361)
... positron lifetime measurements using the Pulsed Low Energy Positron System (PLEPS) was applied for the investigation of defects of irradiated and thermally treated reactor pressure vessel (RPV) ...the ...
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NADPH as a potential intrinsic probe for tumour margin estimation
... fluorescence lifetime system was developed from a Horiba TemPro system, where the original arms of the instrument have been removed and instead have mounts for the liquid light guides to go in and out the sample ...
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Silicon Ingot Characterization using Photoconductance Lifetime Techniques
... One of the advantages of early material characterisation on silicon blocks and ingots is that there is no need for surface treatments or passivation prior to the lifetime measurements. As mentioned before ...
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Minority carrier lifetime in silicon photovoltaics : the effect of oxygen precipitation
... Single-crystal Czochralski silicon used for photovoltaics is typically supersaturated with interstitial oxygen at temperatures just below the melting point. Oxide precipitates therefore can form during ingot cooling and ...
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Ultra portable explosives sensor based on a CMOS fluorescence lifetime analysis micro system
... quencher. Measurements of PL lifetime are more readily quantifiable so can be less affected by internal and external environmental factors (for example the number of excited states in the poly- mer, ...
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Phonon induced line broadening and population of the dark exciton in a deeply trapped localized emitter in monolayer WSe2
... these lifetime measurements neatly matches the characteristic energy scale which we extracted as the activation energy of LO-phonons in our emitters and furthermore was extracted as the activation energy ...
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