Isochronal recovery of fast neutron irradiated metals

Horak, J.A.; Blewitt, T.H.

doi:10.1016/0022-3115(73)90005-6

Cited by 72 publications

(27 citation statements)

References 12 publications

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“…Note that the neutron resonance cross-section for the PHITS results disagrees with the KIT data because of the different meshes of neutron energy. Table 2 summarizes displacement cross-sections in aluminum and copper that were irradiated with fast neutrons [23] and 14-MeV neutrons [24], and in copper and tungsten that were irradiated with 1.1-and 1.94-GeV protons [3,25]. For the PHITS calculations, the cross-section σ BCA-MD for aluminum was derived with the averaged η as given in [19] because the equation of η with the energy dependence for aluminum was not found in the literature search [19].…”

Section: Calculation Of Displacement Cross-sectionmentioning

confidence: 99%

“…The peak structure is seen at around 13.5 cm corresponding to the stopping Table 2. The calculated and experimental displacement cross-sections in aluminum and copper irradiated with fast neutrons [23] and 14-MeV neutrons [24], and in copper and tungsten irradiated with 1.1-and 1.94-GeV protons [3,25]. For the PHITS calculations, the cross-section σ BCA-MD for aluminum was derived with the averaged η given as in [19].…”

Section: Tef-t Target Assemblymentioning

confidence: 99%

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Calculation of displacement cross-sections for structural materials in accelerators using PHITS event generator and its applications to radiation damage

Iwamoto¹,

Iwamoto²,

Harada³

et al. 2013

Journal of Nuclear Science and Technology

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The displacement cross-sections, implemented in the particle and heavy ion transport code system (PHITS), have been calculated to estimate the radiation damage in structural materials used at accelerator facilities. The event generator in PHITS was used to calculate displacement cross-sections for 14 elemental targets and two practical alloys irradiated with neutrons at energies from 10 −10 MeV to 3 GeV, and protons and deuterons at energies from several keV to 3 GeV. These displacement cross-sections were used to estimate the displacement per atom (DPA) in the target assembly at accelerator driven system (ADS) Target Test Facility (TEF-T) using 400-MeV protons, and in the Type 316 stainless steel target using 40-MeV deuterons. For the target assembly at TEF-T using 400-MeV protons, the DPA value for the proton component was approximately twice higher than that for the neutron component. For the Type 316 target using 40-MeV deuterons, radiation damage took place near the surface of Type 316 because of the Coulomb scattering effect between the incident deuterons and the material.

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Section: Calculation Of Displacement Cross-sectionmentioning

confidence: 99%

Section: Tef-t Target Assemblymentioning

confidence: 99%

Calculation of displacement cross-sections for structural materials in accelerators using PHITS event generator and its applications to radiation damage

Iwamoto¹,

Iwamoto²,

Harada³

et al. 2013

Journal of Nuclear Science and Technology

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show abstract

“…The measure of radiation damage in material is DPA (Displacements per Atom). Based on the cryogenic irradiation experiments [14], it is expected that the RRR of Al stabilizer will degrade to the minimum allowed value of 100 in one year of operation. At that point, the magnet will need to be thermo-cycled as the resistivity of Al recovers to its non-irradiated value after warming up to the room temperature [14].…”

Section: Radiation Analysismentioning

confidence: 99%

Conceptual design of the Mu2e production solenoid cold mass

Kashikhin¹,

Ambrosio²,

Andreev³

et al. 2012

AIP Conference Proceedings

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The Muon-to-Electron conversion experiment (Mu2e), under development at Fermilab, seeks to detect direct muon to electron conversion to provide evidence for a process violating muon and electron lepton number conservation that cannot be explained by the Standard Model of particle physics.The required magnetic field is produced by a series of superconducting solenoids. This paper describes the conceptual design of the 5 T, 4 m long solenoid cold mass with 1.67 m bore with the emphasis on the magnetic, radiation and thermal analyses.

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“…The magnet will be equipped with the witness samples made of Al and Cu, placed at the strategic locations on the inner cold mass surface. Once the critical degradation is detected, the magnet will be thermo-cycled by warming up to the room temperature that restores 100% of the original resistivity in Al and ~87% of that in Cu [5]- [6].…”

Section: Introductionmentioning

confidence: 99%

Quench protection analysis of the Mu2e production solenoid

Kashikhin¹,

Ambrosio²,

Andreev³

et al. 2014

AIP Conference Proceedings

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Abstract. The Muon-to-Electron conversion experiment (Mu2e), under development at Fermilab, seeks to detect direct muon to electron conversion to provide evidence for a process violating muon and electron lepton number conservation that cannot be explained by the Standard Model of particle physics. The Mu2e magnet system consists of three large superconducting solenoids. In case of a quench, the stored magnetic energy is extracted to an external dump circuit. However, because of the fast current decay, a significant fraction of the energy dissipates inside of the cryostat in the coil support shells made of structural aluminum, and in the radiation shield. A 3D finite-element model of the complete coldmass was created in order to simulate the quench development and understand the role of the quench-back. The simulation results are reported at the normal and non-standard operating conditions.

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Isochronal recovery of fast neutron irradiated metals

Cited by 72 publications

References 12 publications

Calculation of displacement cross-sections for structural materials in accelerators using PHITS event generator and its applications to radiation damage

Calculation of displacement cross-sections for structural materials in accelerators using PHITS event generator and its applications to radiation damage

Conceptual design of the Mu2e production solenoid cold mass

Quench protection analysis of the Mu2e production solenoid

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