Steady State and Transient Capacitance Measurements of the Energy Levels of a Low Angle Tilt Boundary in a Germanium Bicrystal

1981 ◽  
Vol 5 ◽  
Author(s):  
A. Broniatowski ◽  
J.C. Bourgoin
Keyword(s):  
Steady State ◽  
Cross Section ◽  
Electron Microscope Study ◽  
Capture Cross Section ◽  
Energy Levels ◽  
Tilt Boundary ◽  
Capture Cross ◽  
Boundary Dislocation ◽  
Capacitance Measurements ◽  
Transient Capacitance

ABSTRACTSteady state and transient capacitance (DLTS) measurements have been performed on a low angle tilt boundary in a germanium bicrystal, in combination with an electron microscope study of the boundary dislocation structure. A characteristic level has been found at 0.42 eV below the bottom of the conduction band, with a density about 109 cm-2 and an electronic capture cross-section about 5 × 10-12 cm2.

Measurement of Grain Boundary Parameters by Laser-Spot Photoconductivity

1982 ◽  
Vol 17 ◽  
Author(s):  
E. Poon ◽  
H.L. Evans ◽  
W. Hwang ◽  
R.M. Osgood ◽  
E.S. Yang
Keyword(s):  
Steady State ◽  
Electrical Properties ◽  
Grain Boundary ◽  
Laser Beam ◽  
Cross Section ◽  
Capture Cross Section ◽  
Capture Cross ◽  
Transient Signals ◽  
Trap Energy ◽  
Interface Charge

ABSTRACTAn experimental technique has been developed to study the electrical properties of semiconductor grain boundaries (GBs) by a focused laser beam. The laser beam is trained on a GB while the photoconductivity of the sample is measured. Both the steady-state and transient signals are recorded as functions of temperature. From these data, we obtain well-defined GB parameters, including the barrier height, interface charge density, trap energy and thermal capture cross-section. This technique allows us to examine localized regions of individual GBs in a semiconductor with multiple grains.

Numerical Analysis of Transient Capacitance Data Obtained from Titanium Induced Levels in Silicon

1986 ◽  
Vol 69 ◽  
Author(s):  
E. Courcelle ◽  
A. Mesli ◽  
P. Siffert
Keyword(s):  
Cross Section ◽  
Capture Cross Section ◽  
Donor Level ◽  
Hole Trap ◽  
Capture Cross ◽  
Electron Capture Cross Section ◽  
Transient Capacitance ◽  
Capacitance Transient ◽  
Transient Measurements ◽  
Trap Filling

AbstractUsing electrical and optical DLTS analysis based on the capacitance transient measurements and taking into account the spatially dependent capture and the competition between emission and capture, parameters of Titanium levels in silicon are derived. By curve fitting the calculation to trap-filling data, the electron capture cross section of the first donor level (Ec - .284 eV) is found to be 5.8 10-15 exp (.013/kT)cm2 at ξ= 5 104 V/cm. The hole trap capture cross section of the second donor level (Ev + .260 eV) is found to be 1.97 10-17exp (-.017/kT)cm2 at zero electric field.

Measurements of the neutron capture cross section of 243Am around 23.5 keV

2021 ◽  
pp. 1-6
Author(s):  
Yu Kodama ◽  
Tatsuya Katabuchi ◽  
Gerard Rovira ◽  
Atsushi Kimura ◽  
Shoji Nakamura ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Capture Cross ◽  
Neutron Capture Cross Section

THERMAL NEUTRON CAPTURE CROSS-SECTION OF Na23 AND Mn55

1953 ◽  
Vol 31 (3) ◽  
pp. 204-206 ◽  
Author(s):  
Rosalie M. Bartholomew ◽  
R. C. Hawkings ◽  
W. F. Merritt ◽  
L. Yaffe
Keyword(s):  
Thermal Neutron ◽  
Cross Section ◽  
Cross Sections ◽  
Neutron Capture ◽  
Half Life ◽  
Capture Cross Section ◽  
Thermal Neutron Capture ◽  
Capture Cross ◽  
Neutron Capture Cross Section ◽  
Capture Cross Sections

The thermal neutron capture cross sections of Na23 and Mn55 have been determined using the activation method. The values are 0.53 ± 0.03 and 12.7 ± 0.3 barns respectively with respect to σAul97 = 93 barns. These agree well with recent pile oscillator results. The half-life for Mn56 is found to be 2.576 ± 0.002 hr.

scholarly journals The 236U neutron capture cross-section measured at the n_TOF CERN facility

2017 ◽  
Vol 146 ◽  
pp. 11054
Author(s):  
M. Mastromarco ◽  
M. Barbagallo ◽  
M.J. Vermeulen ◽  
N. Colonna ◽  
S. Altstadt ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Capture Cross ◽  
Neutron Capture Cross Section
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