High energy gamma-ray production in heavy ion reactions

doi:10.1016/0375-9474(88)90605-7

Nuclear Physics A

Volume 482, Issues 1–2, May 1988, Pages 489-501

https://doi.org/10.1016/0375-9474(88)90605-7 Get rights and content

Abstract

We have studied the hard photon production at bombarding energy between 30 and 85 MeV/n. The main characteristics of the photon emission suggest strongly that neutron-proton collisions in the early stage of the reaction are the main source of high energy γ-rays. Theoretical calculations are in good agreement with this hypothesis at beam energies between 20 and 44 MeV/n. However the models underpredict the photon production yield at 85 MeV/n.

References (16)

R. Hingmann et al.
Phys. Rev. Lett.
(1987)
Cheng Ming Ko et al.
Phys. Rev.
(1987)
W. Benenson, private...
E. Grosse et al.
Europhys. Lett.
(1986)
E. Grosse
J. Stevenson et al.
Phys. Rev. Lett.
(1986)
N. Alamanos et al.
Phys. Lett.
(1986)
R. Bertholet et al.
Journal de Physique C4
(1986)
M. Kwato Njock et al.
Phys. Lett.
(1986)
R. Bertholet et al, Nucl. Phys. in...
W. Cassing et al.
Phys. Lett.
(1986)

There are more references available in the full text version of this article.

Cited by (10)

Photon production in heavy-ion collisions and nuclear equation of state
1991, Nuclear Physics, Section A
Photon-production cross sections in ¹²C + ¹²C, ⁴⁰Ca + ⁴⁰Ca and ⁹³Nb + ⁹³Nb collisions at E_lab = 84 and 200 MeV are calculated within the framework of the quantum molecula dynamics approach. The sensitivity of the photon-production cross section to the different types of nuclear equation of state and the momentum dependence in the in-medium NN interaction is studied in detail. Although we found some difference between the soft and hard equation of state in the calculated photon-production cross section, it is suppressed strongly by the momentum dependence in the interaction. There is a sizeable difference between the results calculated with or without taking into account the momentum dependence in the in-medium interaction. The time dependence of the production of the high-energy photons arising from incoherent pn collisions is also studied. The heavier the masses of colliding nuclei, the more number of energetic photons are produced after the system reaches the maximum density, at the expansion stage. Therefore, the photon-production data for heavy colliding nuclei might provide sc me information on the in-medium NN interaction during the time evolution of the heavy-ion reaction.
Energy levels of light nuclei A = 11-12
1990, Nuclear Physics, Section A
Production of energetic photons via excitation of the Δ resonance in heavy ion collisions
1989, Physics Letters B
Effects of neutron-skin thickness on direct hard photon emission from reactions induced by the neutron-rich projectile Ca 50
2022, Physical Review C
Effects of neutron-skin thickness on direct hard photon emission from reactions induced by the neutron-rich projectile <sup>50</sup>Ca
2022, arXiv
Azimuthal anisotropy and multiplicities of hard photons and free nucleons in intermediate-energy heavy-ion collisions
2020, arXiv

View all citing articles on Scopus

View full text

Designing a range modulator wheel to spread-out the Bragg peak for a passive proton therapy facility
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 806, 2016, pp. 101-108
S. Bijan Jia, …, L. Raffaele
Prompt-gamma monitoring in hadrontherapy: A review
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 878, 2018, pp. 58-73
J. Krimmer, …, É. Testa
Prompt-gamma emission in GEANT4 revisited and confronted with experiment
Physica Medica, Volume 88, 2021, pp. 250-261
Aleksandra Wrońska, …, Mirosław Ziębliński
Prompt-gamma fall-off estimation with C-ion irradiation at clinical energies, using a knife-edge slit camera: A Monte Carlo study
Physica Medica, Volume 107, 2023, Article 102554
Andrea Missaglia, …, Carlo Fiorini
Trilateration-based reconstruction of ortho-positronium decays into three photons with the J-PET detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 819, 2016, pp. 54-59
A. Gajos, …, P. Moskal

High energy gamma-ray production in heavy ion reactions

Abstract

Phys. Rev. Lett.

Phys. Rev.

Europhys. Lett.

Phys. Rev. Lett.

Phys. Lett.

Journal de Physique C4

Phys. Lett.

Phys. Lett.