Gamma-Rays from Light Elements Due to Proton Bombardment

1937 ◽  
Vol 51 (9) ◽  
pp. 691-698 ◽  
Author(s):  
R. G. Herb ◽  
D. W. Kerst ◽  
J. L. McKibben
Keyword(s):  
Gamma Rays ◽  
Light Elements ◽  
Proton Bombardment

DISCOVERY OF Pr137

1958 ◽  
Vol 36 (11) ◽  
pp. 1483-1486 ◽  
Author(s):  
Carl Dahlstrom ◽  
J. S. Foster ◽  
A. L. Thompson
Keyword(s):  
Gamma Rays ◽  
Half Life ◽  
Chemical Separation ◽  
Mass Determination ◽  
Proton Bombardment ◽  
End Point ◽  
Neutron Deficient Isotope ◽  
Positron Spectrum

The neutron-deficient isotope Pr137 has been discovered by proton bombardment of natural cerium, chemical separation, and mass determination. Its half-life is 1.5 ± 0.1 hours and the end point of its positron spectrum is 1.7 ± 0.1 Mev. No gamma rays were observed.

Gamma-Rays from Fluorine Due to Proton Bombardment

1938 ◽  
Vol 54 (6) ◽  
pp. 398-408 ◽  
Author(s):  
E. J. Bernet ◽  
R. G. Herb ◽  
D. B. Parkinson
Keyword(s):  
Gamma Rays ◽  
Proton Bombardment

GAMMA RADIATION FROM THE PROTON BOMBARDMENT OF BORON TEN

1956 ◽  
Vol 34 (4) ◽  
pp. 381-388 ◽  
Author(s):  
G. B. Chadwick ◽  
T. K. Alexander ◽  
J. B. Warren
Keyword(s):  
Angular Distribution ◽  
Cross Section ◽  
Gamma Rays ◽  
Lower Energy ◽  
Sodium Iodide ◽  
Scintillation Counter ◽  
Proton Bombardment ◽  
Broad Resonance ◽  
Energy Formula ◽  
Cascade Transitions

The gamma rays resulting from the bombardment of B10 with protons of energies from 0.5 to 2.0 Mev. have been observed with a sodium iodide scintillation counter. Capture radiation, of energy[Formula: see text]showed a broad resonance at Ep = 1135 ± 15 kev. At this energy, the radiation had an angular distribution of the form 1 + (0.50 ± 0.05)cos2θ and a total cross section (3.5 ± 1.0)10−30 cm.2 Several lower energy radiations were also observed and assigned tentatively to cascade transitions in C11.The cross section for the 430 kev. radiation from the reaction B10(p, αγ)Be7 was found to be 0.21 ± 0.05 barn at Ep = 1.52 Mev. This radiation was found to be isotropic.

The Angular Distribution of 12-Mev Gamma Rays from Proton Bombardment ofB11

1953 ◽  
Vol 91 (4) ◽  
pp. 915-917 ◽  
Author(s):  
G. L. Jenkins ◽  
L. W. Cochran ◽  
B. D. Kern ◽  
T. M. Hahn
Keyword(s):  
Angular Distribution ◽  
Gamma Rays ◽  
Proton Bombardment

Capture Gamma Rays from the Proton Bombardment ofBe9

1953 ◽  
Vol 92 (3) ◽  
pp. 675-680 ◽  
Author(s):  
W. F. Hornyak ◽  
T. Coor
Keyword(s):  
Gamma Rays ◽  
Proton Bombardment

Gamma Rays from the Proton Bombardment ofMg24

1956 ◽  
Vol 102 (1) ◽  
pp. 208-222 ◽  
Author(s):  
A. E. Litherland ◽  
E. B. Paul ◽  
G. A. Bartholomew ◽  
H. E. Gove
Keyword(s):  
Gamma Rays ◽  
Proton Bombardment

Gamma Rays from the Low-Energy Proton Bombardment of Beryllium

1955 ◽  
Vol 98 (5) ◽  
pp. 1310-1315 ◽  
Author(s):  
R. R. Carlson ◽  
E. B. Nelson
Keyword(s):  
Gamma Rays ◽  
Low Energy ◽  
Proton Bombardment ◽  
Energy Proton
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