Showing papers in "Nuclear Instruments and Methods in 1965"

TL;DR: The kinematic and phase space formulae which are relevant to nuclear reactions in which three final particles are produced are summarized in this article, where the detection of one or of two of the final particles is considered.

TL;DR: In this paper, the effects of fringing fields of electric and magnetic sector fields on the trajectories of charged particles are determined in a second order approximation, which means that all terms are included which are of the same magnitude as the second order aberrations of ideal fields.

TL;DR: In this article, the possible electronic transitions of ionized and excited atoms at small distances from metal surfaces are investigated and the results are applied to sputtered copper atoms, assuming that sputtered ion and excited atom are converted into atoms in the ground state by resonance processes.

TL;DR: Three new computer programs which have been written at Argonne National Laboratory, in collaboration with Stanley Ruby, for the purpose of computing Mossbauer spectra should need very little modification to be usable with any large enough computer which has a FORTRAN compiler.

TL;DR: In this paper, the pulse height spectra from a lithium-drifted germanium gamma-ray detector bombarded with mono-energetic neutrons have been measured at neutron energies of 1.2, 2.4, 4.7 and 16.3 MeV.

TL;DR: In this article, a treatment of the error propagation in mass spectrometric quantitative determinations by means of isotope dilution is made, and a choice of optimal conditions are given.

TL;DR: In this article, the maximum energy loss of perfectly channeled particles is related to the displacement energy of lattice atoms perpendicular to the channel, and a simple collision model is proposed to calculate energy losses.

TL;DR: In this paper, a method for locating track coordinates in a wire spark chamber is described, where the transducer is a nickel magnetostrictive ribbon which is coupled to the chamber wires magnetically.

TL;DR: A universal ion source is described in this article in which ions of any metal or gas may be produced by using sputtering from a metal electrode to release atoms into a plasma where they become ionised.

TL;DR: In this article, the (p, γ) resonance yield of the penetration of a proton beam through a crystal lattice (Al) was investigated using the resonance process to detect close collisions between protons and Al atoms.

TL;DR: In this article, it was shown that when the charged particles enter a single crystal within a certain critical angle of a low-index direction or plane, the yield is strongly decreased, which is explained as being due to the regularity of the crystal structure.

TL;DR: In this paper, an attempt has been made to improve the output of negative hydrogen ions, which are extracted directly from a hot-cathode Philips-ion-gauge type of discharge.

TL;DR: A series of Monte Carlo computer programs were used to calculate the energy deposition that results from high-energy incident nucleons as a function of depth in a slab of tissue, which included nonelastic and elastic interactions, as well as evaporation processes and nuclear recoils.

TL;DR: In this article, the axial trajectories of charged particles are derived in a second order approximation and presented together with the radial trajectories, if the trajectories under consideration do not deviate very much from a circular main path.

TL;DR: In this paper, a proton recoil spectrometer with γ-ray discrimination was used to measure the neutron energy spectra obtained from the sources Am-α-Be and Ra-αBe.

TL;DR: In this article, a three-dimensional gamma-ray spectrometer with a 4096-channel multiparameter analyzer is presented, where the three detectors view the source and the coincidence spectrum of any two can be recorded while the third detector serves as the coincidence monitor.

TL;DR: In this article, a method to determine the distribution of the stable isotope 18O in a solid, and its application to the study of the diffusion of 18O (p, α) in quartz, is described.

TL;DR: In this paper, a method for rapid electrodeposition and preparation of extremely uniform films of plutonium using isopropylalcohole as solvent is described, which is suitable for activity measurements by gas flow counting and α-spectroscopy.

TL;DR: In this paper, the origin of the plasma vibrations in ion sources and the rise of the degree of ionization of the source gas in the plasma cap are discussed and a simple discussion of electrostatic double layers in connection with ion source plasmas has been given.

TL;DR: In this article, delayed coincidence techniques have been applied to investigate the resolving time properties of NaI and NaI(Tl) scintillators, and the results can be described by the theory of Gatti and Svelto.

TL;DR: In this article, a device was designed for the measurement on internal conversion coefficients by simultaneous observation of electron and gamma spectra with lithium-drifted silicon and germanium detectors, respectively.

TL;DR: In this paper, the scintillation decay of some commercial available organic scintillators has been studied on the interval 0-100 ns by a delayed coincidence method, and the results of the measurement indicate that on the investigated time interval the SCI decay of most organic SCI contains two exponential components, the longer decay time being dependent on the ionisation density produced by the exciting radiation.

TL;DR: In this article, a focusing system consisting of a series of einzel lens units is inserted in the hole to reduce divergence of the beam due to space charge, and the beam is deflected electrostatically through 90° into a system of grid wires situated in the dees.

TL;DR: In this article, the collection time of the charge released in the depletion layer of a solid state radiation detector is measured to obtain information about the ionizing particle impact angle or its range in a depletion layer.

TL;DR: In this paper, a tungsten single crystal cut perpendicular to the 〈111〉 direction has been measured, and the intensity of α-particles emitted in different directions have been measured.