Showing papers in "Nuclear Instruments and Methods in 1978"

TL;DR: In this paper, a commercially available, optically clear, amorphous, thermoset plastic in which nuclear particle tracks can be revealed by etching in a hot NaOH solution is described.

TL;DR: In this article, a consensus profile of hydrogen ion-implanted into silicon has been produced, which is used as a calibration standard for silicon ion-beam profiling, with capabilities ranging from very high depth resolution to high sensitivity.

TL;DR: The 15 N hydrogen profiling method is discussed in this paper, together with its use in a number of applications and it is shown that the width of the nuclear resonance used in this method is 0.4 keV (c.m.) which is less than half the published value.

TL;DR: In this paper, a pulse shape discriminator is described whose operating principle is based on the comparison of two weighted time integrals of the detector signal, which can be used experimentally in the detection of neutrons useful separation from gg-rays.

TL;DR: In this article, a two parallel crystal monochromator was used in the soft X-ray range with the synchrotron radiation emitted by the A.C.O. storage ring.

TL;DR: In this paper, four aspects of the sputtering phenomenon are considered with reference to binary targets and the actual responses of a rather large number of binary oxide and alloy targets are most simply summarized by noting the following: (a) CdO preferentially loses.

TL;DR: The Grasshopper monochromator was installed on the four degree line at Stanford Synchrotron Radiation Laboratory (SRL) as discussed by the authors, where it was one of the first bakeable high vacuum instruments for use with a storage ring source in the photon energy range 25 to 1000 eV.

TL;DR: In this article, the total transmission as well as the transmission into various angular and energy intervals of electrons from different depths in a CEMS 57 Fe absorber has been computed, mainly by means of the Monte Carlo method.

TL;DR: In this paper, a new highly sensitive phosphors of LiF-TLD were prepared for use in a low dose measurement, which were doped with three kinds of impurities which are Cu, Mg, and P, Si or B ion.

TL;DR: In this article, the solution obtained by Cox and Isham to correct coincidence counting data for the effects of dead time and accidental coincidences between events in the two detectors, where one non-extending dead time is an integer multiple of the other, is discussed in detail.

TL;DR: In this paper, electric field ionization of a molten metal film on a wetted needle is used to generate a liquid cusp at the needle apex, which is then used to produce atomic-ion emission by field ionisation.

TL;DR: In this paper, a Ge crystal is shaped to an elongated triangle and mounted as a cantilever so that a cylindrical curvature is obtained with a single micrometer screw; thus, the focus distance can be purposely adjusted.

TL;DR: In this paper, a new high resolution electron spectrometer (BILL) was constructed at the High Flux Reactor in Grenoble and used for measurements of conversion electrons after thermal neutron capture.

TL;DR: In this article, the transport of electrons in molecular nitrogen and air has been studied in the energy range between 50 eV and 5 keV using the Monte Carlo method and simulating the trajectories of the electrons directly from elastic and inelastic cross-section data avoiding the continuous slowing down approximation and multiple scattering theories.

TL;DR: In this paper, a set of previously published γ-ray energies, from 45 to 1300 keV, that are useful for calibration of Ge(Li) spectrometers has been reevaluated to be consistent with both a new reference value for the γray energy scale and the 1973 least squares adjustment of the fundamental constants.

TL;DR: In this paper, the position of the ion cloud, using pulses induced in cathode strips arising from absorption of low-energy X-rays, is defined for ionizing events punctually localized in the volume of a proportional chamber, and the mean position of corresponding avalanches are well defined.

TL;DR: In this article, an iterative procedure to achieve spectral deconvolution by application of Bayes' postulate is presented, and an analytical treatment for a Gaussian response function is used to indicate how the resolution attained depends upon the number of iterations.

TL;DR: In this article, two aspects of high resolution Rutherford backscattering are treated in some detail: (1) the factors which effectively limit the depth-resolution and (2) the application of low-angle backscatter for surface analysis and channelling studies.

TL;DR: In this article, the optimum depth resolution for C, Al, and Cu targets as a function of analysis depth for 2 MeV 4 He + backscattering at a low-angle scattering geometry, employing a solid-state detector.

TL;DR: In this paper, the theory of charged particle activation analysis is discussed and a new method is reported based on the use of average stopping power, and the formula error by this method is smaller than by other known methods.

TL;DR: In this paper, the authors discussed and analyzed with respect to detection sensitivity, depth resolution, and feasibility of channeling/blocking experiments with the isotopes 3He, 6Li, 7Be and 10B.

TL;DR: In this paper, the spectrum of a weak undulator field is calculated by going into a moving frame and the spectrum consists of one line with its width depending on the solid angle of the accepted radiation.

TL;DR: In this article, the pulse-height defect (PHD) of a Si surface barrier detector (1000 ωcm resistivity) has been measured with a cyclotron for elements from Kr to Au between energies of 15 to 160 MeV, and for Ne to Fe between 5 and 50 MeV.

TL;DR: In this paper, the energy distributions of backscattered ions and neutral atoms were measured and the charged fractions were calculated as a function of emergent energies, and it was shown that the charged fraction increases almost linearly with energy.

TL;DR: In this paper, the authors measured the trapping of 7 keV deuterium in 316 stainless steel at room temperatures, as a function of current density, fluence and time.

TL;DR: In this paper, the neutrons were obtained from the T(d, n)α reaction and the measured response (in units of electron energy) for protons above 5 MeV in NE- 102 is about 8% higher than that assumed in popular computer programs for calculating the neutron detection efficiency of plastic scintillators.

TL;DR: In this article, the behavior of electrons in different gases (argon, carbon dioxide, isobutane, methane, methylal) and various mixtures of these gases, using calculations based on simple classical relations, in order to choose the best gas mixture for drift chambers and to optimize their stability.

TL;DR: In this paper, the authors describe the design, construction and performance of a large mass detector used at CERN to study high-energy neutrino interactions in iron, which combines magnetic spectrometry and hadron calorimetry techniques.

TL;DR: In this paper, the characteristics of a multi-element, ionization-type focal plane detector with an effective length of 53 cm have been evaluated for various ions ranging between protons and 32 S. The position resolution obtained is typically 1 mm.