COMPARATIVE HEMATOPOIETIC CYTOKINETICS IN RATS EXPOSED TO EITHER 250 KVP X RAY OR MIXED GAMMA-NEUTRON RADIATION,

1968 ◽  
Author(s):  
S. J. Baum ◽  
D. E. Wyant ◽  
J. P. Vagher
Keyword(s):  
Neutron Radiation ◽  
X Ray

Modelling of ionization effects and the effects of displacement in digital chips for CAD

10.12737/8491 ◽  
2015 ◽  
Vol 4 (4) ◽  
pp. 280-290 ◽  
Author(s):  
Ачкасов ◽  
V. Achkasov ◽  
Чевычелов ◽  
Yu. Chevychelov ◽  
Анциферова ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Dose Rate ◽  
Fault Tolerant ◽  
Neutron Radiation ◽  
Operating Mode ◽  
Neutron Pulse ◽  
X Ray ◽  
Ionization Current ◽  
Collector Junction ◽  
The Impact

The methods of design of digital fault-tolerant bipolar integrated circuits to exposure to radiations such as gamma, x-ray and neutron radiation are considered, as well as the impact of the neutron pulse, which af-fect largely on the gain of the transistor. The operating mode of integrated circuits with change in the ini-tial values of voltages, as well as currents of the emitter and of the base is presented. Numerical calcula-tions of the ionization current in the base-collector junction are considered which allow pre-calculate dose rate of gamma, x-ray and neutron radiation.

scholarly journals Neutron Radiation Shielding for the NIF Streaked X-Ray Detector (SXD) Diagnostic

2007 ◽  
Vol 52 (4) ◽  
pp. 1035-1039
Author(s):  
Peter Song ◽  
Joe Holder ◽  
Bruce Young ◽  
Dan Kalantar ◽  
David Eder ◽  
...  
Keyword(s):  
Neutron Radiation ◽  
Radiation Shielding ◽  
X Ray

scholarly journals Comparison of Thermal Neutron and Hard X-ray Dark-Field Tomography

2020 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Alex Gustschin ◽  
Tobias Neuwirth ◽  
Alexander Backs ◽  
Manuel Viermetz ◽  
Nikolai Gustschin ◽  
...  
Keyword(s):  
Neutron Radiation ◽  
Dark Field ◽  
Silica Matrix ◽  
Beam Hardening ◽  
X Ray ◽  
Beneficial Effects ◽  
Potential Applications ◽  
Grating Interferometer ◽  
Ct Slices ◽  
Tomography Scan

High visibility (0.56) neutron-based multi-modal imaging with a Talbot–Lau interferometer at a wavelength of 1.6 Å is reported. A tomography scan of a strongly absorbing quartz geode sample was performed with both the neutron and an X-ray grating interferometer (70 kVp) for a quantitative comparison. Small scattering structures embedded in the absorbing silica matrix were well resolved in neutron dark-field CT slices with a spatial resolution of about 300 μm. Beneficial effects, such as monochromaticity and stronger penetration power of the used neutron radiation, helped to avoid the beam hardening-related artificial dark-field signal which was present in the X-ray data. Both dark-field modalities show mostly the same structures; however, some scattering features appear only in the neutron domain. Potential applications of combined X-ray and neutron multi-modal CT enabling one to probe both the nuclear and the electron density-related structural properties are discussed. strongly absorbing samples are now accessible for the dark-field modality by the use of thermal neutrons.

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