Determination of the cross-section self-shielding effect with doppler broadening of resonances over the entire energy range

1964 ◽  
Vol 14 (6) ◽  
pp. 612-613
Author(s):  
L. P. Abagyan
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Shielding Effect ◽  
Doppler Broadening ◽  
Entire Energy Range ◽  
Entire Energy ◽  
The Cross

Determination of the cross section of the pion and nucleon interaction with iron nuclei in the energy range 0.5–5.0 TeV

1985 ◽  
Vol 259 (1) ◽  
pp. 163-169
Author(s):  
V.V. Avakian ◽  
A.T. Avundjian ◽  
L.S. Bagdasarian ◽  
S.R. Gevorkian ◽  
G.V. Karagjozian ◽  
...  
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Nucleon Interaction ◽  
The Cross

scholarly journals CROSS SECTION ASYMMETRY OF THE 12C(γ,p0)11B AND 12C(γ,p1)11B REACTIONS AT PHOTON ENERGIES 40...55MeV

2019 ◽  
pp. 26-37
Author(s):  
D.D. Burdeinyi ◽  
J. Brudvik ◽  
V.B. Ganenko ◽  
K. Hansen ◽  
K. Fissum ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Energy Range ◽  
Cross Section ◽  
Relative Contribution ◽  
Linearly Polarized ◽  
The Asymmetry ◽  
The Cross ◽  
Tagged Photons

The asymmetry of the cross section of the 12C(γ,p0)11B and 12C(γ,p1)11B reactions has been measured in the energy range 40...55MeV using linearly polarized tagged photons of the MAX-lab facility. The asymmetry of the process 12C(⃗γ,p0)11B is Σ ≈ 0.85, that implies one-particle reaction mechanism. The asymmetry of the reaction 12C(⃗γ,p1)11B is smaller, Σ ≈ 0.6...0.7, that may be due to the stronger relative contribution of the 2h−1p mechanism to the dominant one-particle reaction mechanism.

DOUBLE PION PHOTOPRODUCTION EXPERIMENT AT LNS–TOHOKU

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2313-2316 ◽  
Author(s):  
◽  
H. KANDA ◽  
N. CHIGA ◽  
Y. FUJII ◽  
K. FUTATSUKAWA ◽  
...  
Keyword(s):  
Total Cross Section ◽  
Energy Range ◽  
Cross Section ◽  
Cross Sections ◽  
Pion Photoproduction ◽  
Total Cross Sections ◽  
Free Proton ◽  
Double Pion ◽  
The Cross

The total cross sections for the π+π− photoproduction on the deuteron were measured in an energy range of 0.8 to 1.1 GeV. The obtained total cross section for the quasi-free π+π− photoproduction on the deuteron was about 60 % of those on the free proton. The cross section for Δ++Δ− photoproduction was derived from the non-quasi-free π+π− photoproduction events. It was smaller than the previous data.

Merging beams study of ionization of positive ions by electrons

1972 ◽  
Vol 327 (1570) ◽  
pp. 317-328 ◽  
Keyword(s):  
Experimental Data ◽  
Energy Range ◽  
Cross Sections ◽  
Atomic Nitrogen ◽  
Efficiency Curve ◽  
Entire Energy Range ◽  
Positive Ions ◽  
Entire Energy ◽  
Product Ions ◽  
Scaling Rule

The technique of beam superposition is employed in the experimental study of ionization of He+, N+ and 0+ by electrons. The electron energy range extends up to 300 eV. The primary and product ions are mass selected. Relative cross-sections for ionization are obtained as a function of the laboratory energy of the electrons. The experimental data for He+ and N+ are quite consistent with published values of the absolute cross-sections for these systems. By using Thomson’s classical scaling rule for isoelectronic systems, the cross-sections for ionization of O+ are calculated from those for ionization of atomic nitrogen. These values, when normalized to the relative ionization efficiency curve obtained experimentally here, show close overlap over the entire energy range.

Determination of the cross section forTb159(n,2n)Tb158and the half-life ofTb158

1984 ◽  
Vol 30 (3) ◽  
pp. 823-825 ◽  
Author(s):  
R. J. Prestwood ◽  
D. B. Curtis ◽  
D. J. Rokop ◽  
D. R. Nethaway ◽  
N. L. Smith
Keyword(s):  
Cross Section ◽  
Half Life ◽  
The Cross

Experimental determination of mass velocity and enthalpy of flow on the cross section of models of water-cooled nuclear reactors

2020 ◽  
Vol 12 (6) ◽  
pp. 260-270
Author(s):  
Alexander Basov ◽  
Edyard Boltenko ◽  
Mikhail Davydov ◽  
Igor Kononenko
Keyword(s):  
Experimental Determination ◽  
Cross Section ◽  
Mass Velocity ◽  
Nuclear Reactors ◽  
The Cross

Some Remarks on the Density of Interplanetary Dust Grains

1985 ◽  
Vol 85 ◽  
pp. 137-140
Author(s):  
P.L. Lamy
Keyword(s):  
Kinetic Energy ◽  
Bulk Density ◽  
Cross Section ◽  
Optical Sensors ◽  
Interplanetary Dust ◽  
Relevant Parameter ◽  
Dust Grains ◽  
Gravitational Forces ◽  
The Cross

AbstractThe relevance of the bulk density as a physical parameter characterizing interplanetary dust grains is discussed. The various measurements which lead to a determination of this parameter are reviewed. The specific case of the collected interplanetary dust grains is considered.The bulk density of interplanetary dust grains has been and is still a matter of controversy. This quantity cannot, in general, be directly measured; it is used to relate the mass and the size of a grain. This duality stems from physics itself as there are interactions sensitive to the mass (e.g., gravitational forces) while others are sensitive to the size or the cross-section (e.g., light scattering, radiation pressure, gas and plasma interactions). The measuring technics of the grains reflect this duality as, for instance, impact sensors are generally sensitive to the kinetic energy and thus to the mass, while optical sensors are sensitive to the cross-section. One sees that the density is not strictly speaking the relevant parameter, but what is needed is a relationship between mass and average cross-section.

scholarly journals The Photoneutron Cross Section of 9Be in the Intermediate Energy Range

1959 ◽  
Vol 12 (1) ◽  
pp. 21 ◽  
Author(s):  
HH Thies ◽  
BM Spicer ◽  
JEE Baglln
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Level Scheme ◽  
Complex Shape ◽  
Intermediate Energy ◽  
Bremsstrahlung Radiation ◽  
Integrated Cross Section ◽  
The Cross

The photoneutron cross section of DBe has been measured in the region from 6�5 to 18 MeV, using filtered bremsstrahlung radiation from an 18 MeV synchrotron. The integrated cross section is in agreement with an earlier experiment, but increased resolution has shown a more complex shape, with sharp maxima at 1l�25�O�2 and 13� 25 � 0�2 MeV. The significant features of the cross section are discussed and compared with the level scheme as it is known at present.

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