Levels in 35Cl: Experimental

1971 ◽  
Vol 49 (19) ◽  
pp. 2396-2414 ◽  
Author(s):  
W. J. Wiesehahn
Keyword(s):  
Gamma Rays ◽  
Energy Levels ◽  
Angular Distributions

Decay schemes, angular distributions, and polarizations of gamma rays from the reaction34S(p,γ)35Cl have been measured. The lifetimes of some of the levels which were populated in these reactions have been measured. The four resonances excited by protons of 1020, 1214, 1267, and 1510 keV were studied. Spin and parity assignments for the 1220, 1762, 2645, 2695, 3006, 3163, 4058, 4174, 7355, 7545, 7601, and 7845 keV energy levels and the lifetimes of the first six of these are discussed.

LOW-LYING ENERGY LEVELS IN Cl-35

1961 ◽  
Vol 39 (6) ◽  
pp. 917-925 ◽  
Author(s):  
R. S. Storey ◽  
L. W. Oleksiuk
Keyword(s):  
Gamma Radiation ◽  
Gamma Rays ◽  
Energy Levels ◽  
Distribution Functions ◽  
Angular Distributions ◽  
Excitation Functions

The reaction Cl35(p,p′γ)Cl35 has been observed by the gamma radiation arising from the first two excited levels of chlorine-35. Excitation functions for these radiations were measured for a range of proton energies from 2.3 to 3.25 Mev. Many sharp resonances are observed, of which a dozen are prominent. Angular distributions of the gamma rays from the 1.22-Mev and the 1.76-Mev excited levels of Cl35 have been measured over six resonances. The distribution functions, together with additional measurements by other investigators, yield spin assignments of 1/2 and 5/2 for the levels at 1.22 and 1.76 Mev respectively.

MEASUREMENTS OF SPECTRAL AND ANGULAR DISTRIBUTIONS OF SECONDARY GAMMA-RAYS IN MATTER

1955 ◽  
Vol 33 (2) ◽  
pp. 96-109 ◽  
Author(s):  
G. N. Whyte
Keyword(s):  
Gamma Rays ◽  
Pulse Height ◽  
Energy Spectra ◽  
Angular Distributions ◽  
Barrier Thickness ◽  
Crystal Spectrometer ◽  
Theoretical Predictions ◽  
The Face ◽  
Concrete Barrier ◽  
Secondary Gamma Radiation

The distribution in energy and angle of the secondary gamma radiation emerging from the face of a concrete barrier containing a point source of cobalt-60 has been measured as a function of barrier thickness. Results on energy spectra and angular distributions are presented, and some of their features are compared with theoretical predictions. The operation of the two-crystal spectrometer and the photographic system for recording pulse-height distributions are described in some detail.

Using a clinical linac to determine the energies of gamma-ray transitions and half-lives of barium nuclei

2020 ◽  
Vol 35 (10) ◽  
pp. 2050062
Author(s):  
Abdullah Engin Çalık ◽  
Kaan Manisa ◽  
Ahmet Biçer ◽  
Mehmet Erdoğan ◽  
Mürsel Şen ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Linear Accelerator ◽  
Nuclear Physics ◽  
Hpge Detector ◽  
Gamma Ray ◽  
Energy Levels ◽  
Photonuclear Reactions ◽  
High Purity Germanium ◽  
Physics Experiment ◽  
First Time

Photonuclear reactions have great importance in understanding the structure of the nuclei. These reactions, performed using the gamma rays obtained by way of bremsstrahlung, are a standard nuclear physics experiment. In this study, a non-enriched barium sample was activated for the first time by using a clinical linear accelerator (cLINACs). The spectrum of barium radioisotopes was obtained by using a gamma spectrometry with a high purity germanium (HPGe) detector. The obtained spectroscopic data were analyzed and energy levels and half-life values together with their uncertainties were obtained. Some energy levels and half-lives of [Formula: see text]Ba were determined with more precision than those of literature values.

Nuclear g Factors in 55Fe

1973 ◽  
Vol 51 (7) ◽  
pp. 707-712 ◽  
Author(s):  
P. G. Kerr ◽  
A. W. Gibb ◽  
J. A. Cameron
Keyword(s):  
Excited States ◽  
Gamma Rays ◽  
Target Material ◽  
Internal Field ◽  
Angular Distributions ◽  
Mixing Ratios ◽  
Decay Gamma ◽  
G Factors

The (α,n) reaction on natural chromium has been used to study levels in 55Fe up to 2.5 MeV excitation. Intensities and angular distributions of the decay gamma rays were measured, yielding branching and E2/M1 mixing ratios. In a magnetized target of the alloy Cr20Fe80, the rotation of the angular distributions was observed. Using recently determined lifetimes for the excited states and the average internal field of 277 kOe measured in the target material by Mössbauer absorption, the following g factors are obtained:[Formula: see text]

The 12 C(γ, 3α) reaction energy levels of 8 Be and 12 C

1955 ◽  
Vol 228 (1174) ◽  
pp. 376-396 ◽  
Keyword(s):  
Ground State ◽  
Energy Levels ◽  
Electric Quadrupole ◽  
Angular Distributions ◽  
Reaction Energy ◽  
Reaction Proceeds ◽  
Γ Ray ◽  
Relationship Of ◽  
The Relationship ◽  
Α Particles

The mechanism of the 12 C(γ, 3α) reaction, for γ-ray energies, E γ , up to about 40 MeV, has been determined from a study of over 2500 stars in nuclear emulsions. The study includes investigation of the angular distributions and correlations of the α-particles. The reaction is initiated mainly by electric-dipole and electric-quadrupole γ-ray interaction, the former being unexpectedly strong when E γ < 20 MeV. For E γ < 25 MeV the reaction proceeds mainly by transitions to the ground-state of 8 Be (spin J = 0), and to 2⋅95 ± 0⋅10 MeV ( J = 2) and 4⋅0 ± 0⋅1 MeV ( J = 2 or 4) levels of 8 Be. Transitions to levels near 6, 10 and 15 MeV (all J = 0, 2 or 4) become predominant when 25 MeV ≤ E γ <26 MeV. For E γ ≥ 26 MeV, most transitions lead to 16⋅8 ± 0⋅2 MeV ( J = 2) and 17⋅6 ± 0⋅2 MeV ( J = 2, possibly 0) levels, and possibly to a further 16⋅4 ± 0⋅2 MeV ( J = 0 or 2) level, levels which have not been detected in other reactions. The reaction mechanism is interpreted in terms of competing modes of decay of a compound nucleus, demonstrating the strong influence of the isotopic spins ( T ) of the levels of 12 C and 8 Be involved. For example, the 2 + levels of 12 C involved when 16 MeV ≤ E γ <20 MeV are (unexpectedly) found to have T = 1, and the 16⋅8 and 17⋅6 MeV levels of 8 Be are also found to have T = 1. The relationship of the 12 C (γ, 3α) reaction to other 12 C photodisintegration reactions (including some new reactions established during the present experiments) is discussed.

Energy levels ofCm249from measurements of thermal neutron capture gamma rays

1982 ◽  
Vol 25 (5) ◽  
pp. 2232-2254 ◽  
Author(s):  
R. W. Hoff ◽  
W. F. Davidson ◽  
D. D. Warner ◽  
H. G. Börner ◽  
T. von Egidy
Keyword(s):  
Thermal Neutron ◽  
Gamma Rays ◽  
Neutron Capture ◽  
Energy Levels ◽  
Thermal Neutron Capture

Gamma Rays from theHg199(n, γ)Hg200Reaction and Energy Levels inHg200

1967 ◽  
Vol 164 (4) ◽  
pp. 1548-1558 ◽  
Author(s):  
O. W. B. Schult ◽  
W. R. Kane ◽  
M. A. J. Mariscotti ◽  
J. M. Simic
Keyword(s):  
Gamma Rays ◽  
Energy Levels

Angular Distributions of the Gamma Rays from the ReactionNa23(p, γ)Mg24

1956 ◽  
Vol 104 (2) ◽  
pp. 369-375 ◽  
Author(s):  
F. W. Prosser ◽  
N. P. Baumann ◽  
D. K. Brice ◽  
W. G. Read ◽  
R. W. Krone
Keyword(s):  
Gamma Rays ◽  
Angular Distributions

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)Y89Reaction

1967 ◽  
Vol 158 (4) ◽  
pp. 1041-1049 ◽  
Author(s):  
Patricia S. Buchanan ◽  
Suresh C. Mathur ◽  
W. E. Tucker ◽  
I. L. Morgan ◽  
Emmett L. Hudspeth
Keyword(s):  
Gamma Rays ◽  
Angular Distributions
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