scholarly journals Generation Possibility of Gamma‐Ray Glows Induced by Photonuclear Reactions

2021 ◽  
Vol 126 (3) ◽  
Author(s):  
G. S. Diniz ◽  
I. S. Ferreira ◽  
Y. Wada ◽  
T. Enoto
Keyword(s):  
Gamma Ray ◽  
Photonuclear Reactions

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.

scholarly journals De-excitation Gamma-ray Technique for Improved Resolution in Intermediate Energy Photonuclear Reactions

1996 ◽  
Vol 49 (6) ◽  
pp. 1075 ◽  
Author(s):  
A Kuzin ◽  
R Rassool ◽  
MN Thompson
Keyword(s):  
Gamma Ray ◽  
Intermediate Energy ◽  
Photonuclear Reactions ◽  
State Decay ◽  
Γ Rays ◽  
First Time

Use of residual-state decay γ-rays could be a powerful tool in the study of photonuclear reactions. The practicality of this technique in a tagged-photon experiment is demonstrated for the first time with data on the 12C(γ,p) reaction.

Fair Weather Neutron Bursts From Photonuclear Reactions by Extensive Air Shower Core Interactions in the Ground and Implications for Terrestrial Gamma‐ray Flash Signatures

2021 ◽  
Vol 48 (6) ◽  
Author(s):  
Gregory S. Bowers ◽  
Xuan‐Min Shao ◽  
William Blaine ◽  
Brenda Dingus ◽  
David M. Smith ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Photonuclear Reactions ◽  
Fair Weather ◽  
Extensive Air Shower ◽  
Air Shower ◽  
Shower Core

Energy level and half-life determinations from photonuclear reaction on Ga target

2016 ◽  
Vol 25 (08) ◽  
pp. 1650045 ◽  
Author(s):  
Serkan Akkoyun ◽  
Tuncay Bayram ◽  
Fatih Dulger ◽  
Haris Đapo ◽  
Ismail Boztosun
Keyword(s):  
Energy Level ◽  
Half Life ◽  
Photonuclear Reaction ◽  
Linear Accelerator ◽  
Gamma Ray ◽  
Target Material ◽  
Photonuclear Reactions ◽  
Transition Energies ◽  
Endpoint Energy ◽  
Bremsstrahlung Photons

Photonuclear reactions are important tools in the understanding of the nucleus. These reactions are also interesting for realizing the element creation processes in stellar environment. The use of bremsstrahlung photons generated from clinic linear accelerator is practical for performing these type of reactions. In this study, the bremsstrahlung photons with endpoint energy of 18[Formula: see text]MeV have been used for activating gallium target material. After irradiation, the transition energies and half-lives associated with the decay of [Formula: see text], [Formula: see text] and [Formula: see text] isotopes have been determined The values obtained for half-life of [Formula: see text], [Formula: see text] and [Formula: see text] isotopes are [Formula: see text][Formula: see text]min, [Formula: see text][Formula: see text]min and [Formula: see text][Formula: see text]h, respectively. It has been seen that the values are consistent with the present literature values. In addition, the new measurements of gamma-ray energies for transition energies have been obtained comparable to the literature values with good uncertainties.

Transition energy and half-life determinations of photonuclear reaction products of erbium nuclei

2016 ◽  
Vol 25 (12) ◽  
pp. 1650107 ◽  
Author(s):  
Tuncay Bayram ◽  
Serkan Akkoyun ◽  
Serhat Uruk ◽  
Haris Dapo ◽  
Fatih Dulger ◽  
...  
Keyword(s):  
Half Life ◽  
Photonuclear Reaction ◽  
Gamma Ray ◽  
Radiation Transport ◽  
Reactor Core ◽  
Residual Activity ◽  
Radiation Shielding ◽  
Photonuclear Reactions ◽  
Reaction Products ◽  
Nuclear Science

Photon induced reactions are called as photonuclear reactions and used in many research fields of nuclear science and nuclear physics. The photonuclear data are used in many nuclear applications such as radiation shielding and protection, radiation transport analyses, reactor core design, activation analysis and nuclear waste transmutation. In the past, many studies had been devoted to extract photonuclear data covering the isotopic chart. However, there is still lack of existing data. In the present study, we have performed photonuclear reactions on erbium (Er) target by using clinical electron linear accelerators (cLINAC). By using measured residual activity of photonuclear reaction products of Er nuclei, we have determined the half-life of [Formula: see text]Er nucleus and transition energies of [Formula: see text]Ho nucleus. Also, new measurements on gamma-ray energies of the products have been determined accurately. Furthermore, this study shows that repurposed cLINAC with limited budget can contribute to the global nuclear science knowledge.

scholarly journals An Interpretation of De-excitation Gamma Ray Measurements Following the Photodisintegration of 12C, 16O, and 40Ca

1973 ◽  
Vol 26 (3) ◽  
pp. 269 ◽  
Author(s):  
BM Spicer
Keyword(s):  
Gamma Ray ◽  
Ground States ◽  
Radiation Absorption ◽  
Final States ◽  
Photonuclear Reactions ◽  
Absorption Process ◽  
The One

The relative populations of final states in photonuclear reactions for 12C, 160, and 40Ca are examined in the light of information on the known major configurations present in the wavefunctions of those final states, with the assumption that the nucleon excited in the radiation absorption process is in fact the one emitted. This assumption is investigated and found to be reasonable for 12C and 160 but not for 40Ca. The data on relative populations of final states are interpreted to give information on the relative strengths of configurations in the wavefunctions of the ground states of the three nuclei.

On the possible gamma-ray source in Cygnus

1967 ◽  
Vol 31 ◽  
pp. 469-471
Author(s):  
J. G. Duthie ◽  
M. P. Savedoff ◽  
R. Cobb
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
Right Ascension

A source of gamma rays has been found at right ascension 20h15m, declination +35°, with an uncertainty of 6° in each coordinate. Its flux is (1·5 ± 0·8) x 10-4photons cm-2sec-1at 100 MeV. Possible identifications are reviewed, but no conclusion is reached. The mechanism producing the radiation is also uncertain.

Solar Flare Energetic Neutral Emission Measurements in the Project Coronas-I

1994 ◽  
Vol 144 ◽  
pp. 635-639
Author(s):  
J. Baláž ◽  
A. V. Dmitriev ◽  
M. A. Kovalevskaya ◽  
K. Kudela ◽  
S. N. Kuznetsov ◽  
...  
Keyword(s):  
Solar Flare ◽  
Energy Range ◽  
Gamma Rays ◽  
Pulse Shape ◽  
Gamma Ray ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Solar Neutron ◽  
Low Altitude

AbstractThe experiment SONG (SOlar Neutron and Gamma rays) for the low altitude satellite CORONAS-I is described. The instrument is capable to provide gamma-ray line and continuum detection in the energy range 0.1 – 100 MeV as well as detection of neutrons with energies above 30 MeV. As a by-product, the electrons in the range 11 – 108 MeV will be measured too. The pulse shape discrimination technique (PSD) is used.

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