Exciton Model Analysis of Double Differential Neutron Production Cross Sections for 113-MeV Protons

Kishida, Norio; Kadotani, Hiroyuki

doi:10.1007/978-3-642-58113-7_283

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…We have performed detailed analyses of more than 600 excitation functions for interactions of protons with energies from 10 MeV to 5 GeV with nuclei of 12 We have compared our results with all reliable experimental data available to us and with predictions of other models realized in several codes: ALICE LIV-ERMORE 87 [11], HETC/KFA-2 [12], ALICE91 [13], LAHET [14], ALICE-F [15], NUCLEUS [16], MCEXCITON [17], ALICE82 [18], DISCA2 [19], CASCADE [20], HETC [21], INUCL [22], ALICE75 [23], ALICE LIVERMORE 82 [24], ALICE 87 MOD [25], PEQAQ2 [26], ALICE92 [27], CEM92M [28], with the Milan version of the exciton model of nuclear reactions with preformed α-clusters in nuclei [29], and with calculations using phenomenological systematics from Refs. [30]- [33].…”

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confidence: 99%

Cascade-exciton model analysis of proton induced reactions from 10 MeV to 5 GeV

Mashnik

Sierk

Bersillon

et al. 1998

Nuclear Instruments and Methods in Physics Research Section A:

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We have used an extended version of the Cascade-Exciton Model (CEM) to analyze more than 600 excitation functions for proton induced reactions on 19 targets ranging from 12 C to 197 Au, for incident energies ranging from 10 MeV to 5 GeV. We have compared the calculations to available data, to calculations using approximately two dozen other models, and to predictions of several phenomenological systematics. We present here our conclusions concerning the relative roles of different reaction mechanisms in the production of specific final nuclides. We comment on the strengths and weaknesses of the CEM and suggest possible further improvements to the CEM and to other models. * On leave of absence from Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, RussiaPrecise nuclear data on excitation functions for reactions induced by nucleons in the energy range up to several GeV are of great importance both for fundamental nuclear physics and for many applications. Such data are necessary to understand the mechanisms of nuclear reactions, to study the change of properties of nuclei with increasing excitation energy, and to study the effects of nuclear matter on the properties of hadrons and their interactions. Excitation functions are more sensitive to the detailed mechanisms of nuclear reactions than are double differential cross sections of emitted particles or their integrals over energy and/or angles. Therefore, excitation functions are a convenient tool to test models of nuclear reactions.Second, and perhaps more important today, expanded nuclear data bases in this intermediate energy range are required for several important applications. Recently, one of the most challenging problems requiring reliable nuclear data files is Accelerator-Driven Transmutation Technology (ADTT) for elimination of nuclear waste [1]. The problems of Accelerator Transmutation of Waste (ATW) are closely connected with Accelerator-Based Conversion (ABC) [2] aimed to complete the destruction of weapons plutonium, and with Accelerator-Driven Energy Production (ADEP) [3] which proposes to derive fission energy from thorium with concurrent destruction of the long-lived waste and without the production of weapons-usable material, though substantial differences among these systems do exist [2]. Precise nuclear data are needed for solving problems of radiation damage to microelectronic devices [4] and not only of radiation protection of cosmonauts and aviators or workers at nuclear installations, but also to estimate the radiological impact of radionuclides such as 39 Ar arising from the operation of fusion reactors or high-energy accelerators and the population dose from such radionuclides retained in the atmosphere so as to avoid possible problems of radiation health effects for the whole population (see, e.g. [5]). Another important new application which requires large nuclear data libraries at energies up to several hundreds of MeV is the radiation transport simulation of cancer radiotherapy used f...

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confidence: 99%

Cascade-exciton model analysis of proton induced reactions from 10 MeV to 5 GeV

Mashnik

Sierk

Bersillon

et al. 1998

Nuclear Instruments and Methods in Physics Research Section A:

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“…where R represents the branching ratio obtained by theoretical calculation. In addition, since the branching ratios must be known before the fitting, we calculate those ratios using evaporation and pre-equilibrium nuclear model codes ALICE-F [4] and MCPHOTO [5].…”

Section: Evaluation Methodsmentioning

confidence: 99%

JENDL Photonuclear Data File

Kishida¹,

Murata²,

Asami³

et al. 2005

AIP Conference Proceedings

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JENDL Photonuclear Data File 2004 was released in March 2004 and contains the photonuclear data for 68 nuclides from 2 H to 237 Np. We were proceeding on the evaluation work with the help of theoretical calculations based on statistical nuclear reaction models. The photonuclear cross sections that are to be contained in the file are as follows: photoabsorption cross sections, yield cross sections, and double-differential cross sections for photoneutrons, photoprotons, photodeuterons, phototritons, photo-3 He-particles and photoalpha-particles, and isotope production cross sections. For the actinide nuclides, physical quantities related to photofission reactions are also included. The maximum energy of incident photons is 140 MeV, which is the energy at which the pion production channel opens.

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“…Therefore, the photoabsorption cross section can be expressed by a sum of these two processes. We evaluated photonuclear data by using the evaporation model codes ALICE-F [29] and MCPHOTO [30]. The 2004 version was already released as JENDL/PD-2004 [31], which contained data for 68 nuclei from 2 H to 237 Np.…”

Section: Jendl Photonuclear Data Filementioning

confidence: 99%

Recent advances in the JENDL project

Shibata

Nakagawa

Fukahori

et al. 2007

Nd2007

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Abstract. General-and special-purpose JENDL data files are being produced in cooperation with the Japanese Nuclear Data Committee. Nuclear model codes have been developed in order to raise the reliability of the fourth version of JENDL General-Purpose File (JENDL-4). MA and FP data have been evaluated for JENDL-4. The capture cross section of 235 U was examined in the energy region from 2 keV to 1 MeV. As a follow-up action on the previous library JENDL-3.3, covariances of several nuclei were estimated for a study on ADS. The evaluation for the 2007 versions of JENDL High Energy File (JENDL/HE) and JENDL Photonuclear Data File (JENDL/PD), which are regarded as special-purpose files, is in the final stage. Analyses of neutron transmission experiments reveal the reliability of JENDL/HE.

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Exciton Model Analysis of Double Differential Neutron Production Cross Sections for 113-MeV Protons

Cited by 3 publications

References 4 publications

Cascade-exciton model analysis of proton induced reactions from 10 MeV to 5 GeV

Cascade-exciton model analysis of proton induced reactions from 10 MeV to 5 GeV

JENDL Photonuclear Data File

Recent advances in the JENDL project

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