نتایج جستجو برای: neutron spectrometer
تعداد نتایج: 67078 فیلتر نتایج به سال:
The Penning trap mass spectrometer JYFLTRAP was used to measure the atomic masses of radioactive nuclei with an uncertainty better than 10 keV. The atomic masses of the neutron-deficient nuclei around the N = Z line were measured to improve the understanding of the rp-process path and the SbSnTe cycle. Furthermore, the masses of the neutron-rich gallium (Z = 31) to palladium (Z = 46) nuclei hav...
Dedicated to Prof. G. Hildebrandt on the occasion of his 60th birthday A diffractometer using perfect crystals in symmetric Bragg arrangement, hence being useful for both neutron and X-ray radiation, has been built. The angular resolution of that instrument is better than 1 microradian, which corresponds to a scattering vector resolut ion of about 10~ 6 A _ 1 . This spectrometer was equipped wi...
The analysing power of the reaction np → ppπ − for neutron energies between threshold and 570 MeV has been determined using a transversely polarised neutron beam at PSI. The reaction has been studied in a kinematically complete measurement using a time-of-flight spectrometer with large acceptance. Analysing powers have been determined as a function of the c.m. pion angle in different regions of...
A new design is presented for a time-ofight neutron spectrometer that uses a shaped scattering foil to generate deuteron recoils. It is shown that the number of recoils can be substantially increased by utilizing a three-dimensional, deuterated scattering foil in the shape of an ellipsoid, which maintains the time-ofight dispersion present originally in the neutrons. The time-integrated neutron...
The Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility measures the DT neutron spectrum from cryogenically layered inertial confinement fusion implosions. Yield, areal density, apparent ion temperature, and directional fluid flow are inferred from the MRS data. This paper describes recent advances in MRS measurements of the primary peak using new, thinner, reduced-area...
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