Jorge Giner Navarro
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View article: Numerical study of self-injected electron acceleration in CNT structured targets driven by an 800 nm laser
Numerical study of self-injected electron acceleration in CNT structured targets driven by an 800 nm laser Open
Laser wakefield acceleration (LWFA) may achieve TeV/m gradients using high-density solid-state plasmas as accelerating media. However, the application of bulk solid materials requires attosecond laser pulses, such as X-ray lasers, to drive…
View article: Numerical study of electron acceleration in structured CNT targets via self-injection in a wakefield bubble driven by an 800 nm laser
Numerical study of electron acceleration in structured CNT targets via self-injection in a wakefield bubble driven by an 800 nm laser Open
Laser wakefield acceleration (LWFA) may achieve TeV/m gradients using high-density solid-state plasmas as accelerating media. However, the application of bulk solid materials requires attosecond laser pulses, such as X-ray lasers, to drive…
View article: Electron Acceleration in Carbon Nanotubes
Electron Acceleration in Carbon Nanotubes Open
Wakefield wavelengths associated with solid-state plasmas greatly limit the accelerating length. An alternative approach employs 2D carbon-based nanomaterials, like graphene or carbon nanotubes (CNTs), configured into structured targets. T…
View article: Advanced Graphite Creep Uncertainty Analysis
Advanced Graphite Creep Uncertainty Analysis Open
Radiation damage estimation is an important component of the post irradiation analysis of the Advanced Graphite Creep (AGC) experiment. It depends primarily on the fast fluence, which is determined using well established methods of spectra…
View article: Radiation Shielding Analysis of Niowave’s Uranium Target Assembly 2 (UTA-2) Facility for Molybdenum-99 Production
Radiation Shielding Analysis of Niowave’s Uranium Target Assembly 2 (UTA-2) Facility for Molybdenum-99 Production Open
Niowave is seeking to develop a commercial medical isotope production process using a low-enriched uranium accelerator-driven subcritical reactor (ADSR) system to produce molybdenum-99. As part of the US Department of Energy national labor…
View article: Nuclear Power Concepts and Development Strategies for High-Power Electric Propulsion Missions to Mars
Nuclear Power Concepts and Development Strategies for High-Power Electric Propulsion Missions to Mars Open
Under the Mars Transportation Assessment Study, NASA and the U.S. Department of Energy are performing analyses and generating concepts for crewed nuclear electric propulsion (NEP) missions to Mars. This paper presents the results of trade …
View article: Impact of Flux Wire Selection on Neutron Spectrum Adjustment
Impact of Flux Wire Selection on Neutron Spectrum Adjustment Open
In reactor dosimetry, spectrum unfolding methods are used to assess the energy-dependent neutron flux following the irradiation of flux wires or foils. For some spectrum unfolding methods, an a priori, or initial guess, spectrum is necessa…
View article: Development of an Activation Analysis Methodology to Support the Disposal of the High Flux Isotope Reactor Original Reflector Container
Development of an Activation Analysis Methodology to Support the Disposal of the High Flux Isotope Reactor Original Reflector Container Open
The original beryllium reflector container was installed prior to the first ever High Flux Isotope Reactor (HFIR) cycle and was removed at the end of cycle 382. The original beryllium reflector was part of every HFIR irradiation cycle from…
View article: In-Canal Assay of High Specific Activity <sup>60</sup>Co at the Advanced Test Reactor
In-Canal Assay of High Specific Activity <sup>60</sup>Co at the Advanced Test Reactor Open
Production of High-Specific Activity (HSA) 60Co has recently resumed at the Advanced Test Reactor (ATR) at the Idaho National Laboratory (INL). The technical steps of performing in-canal assay of HSA 60Co targets at ATR are described herei…
View article: High-gradient behavior of a dipole-mode rf structure
High-gradient behavior of a dipole-mode rf structure Open
A normal-conducting, X-band traveling wave structure operating in the dipole mode has been systematically high-gradient tested to gain insight into the maximum possible gradients in these types of structure. Measured structure conditioning…
View article: Relativistic Ultrafast Electron Diffraction of Nanomaterials
Relativistic Ultrafast Electron Diffraction of Nanomaterials Open
Journal Article Relativistic Ultrafast Electron Diffraction of Nanomaterials Get access Daniel Durham, Daniel Durham University of California, Berkeley, Berkeley, California, United States Search for other works by this author on: Oxford A…
View article: A THz driven split-ring resonator based ultrafast relativistic electron streak camera
A THz driven split-ring resonator based ultrafast relativistic electron streak camera Open
The use of sub-wavelength metal structures to locally enhance high frequency electromagnetic fields, generally known as plasmonics, enables breakthrough opportunities across diverse fields of research such as nonlinear optics, biosensing, …
View article: Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids
Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids Open
This study details the development of a single-shot diagnostic technique for the 4D average and core phase space densities of low-charge, high-brightness electron beams, based on the analysis of shadow point-projection images of metal grid…
View article: Electron Microscopy Inspired Setup for Single-Shot 4-D Trace Space Reconstruction of Bright Electron Beams
Electron Microscopy Inspired Setup for Single-Shot 4-D Trace Space Reconstruction of Bright Electron Beams Open
In the development of low charge, single-shot diagnostics for high brightness electron beams, Transmission Electron Microscopy (TEM) grids present certain advantages compared to pepper pot masks due to higher beam transmission. In this pap…
View article: Statistics of vacuum breakdown in the high-gradient and low-rate regime
Statistics of vacuum breakdown in the high-gradient and low-rate regime Open
In an increasing number of high-gradient linear accelerator applications, accelerating structures must operate with both high surface electric fields and low breakdown rates. Understanding the statistical properties of breakdown occurrence…
View article: Commissioning of XBox-3: A Very High Capacity X-band Test Stand
Commissioning of XBox-3: A Very High Capacity X-band Test Stand Open
The Compact Linear Collider (CLIC) beam-based acceleration baseline uses high-gradient travelling wave accelerating structures at a frequency of 12 GHz. In order to prove the performance of these structures at high peak power and short pul…
View article: Design and Construction of a High-Gradient RF Lab at IFIC-Valencia
Design and Construction of a High-Gradient RF Lab at IFIC-Valencia Open
The IFIC High-Gradient (HG) Radio Frequency (RF) laboratory is designed to host a high-power infrastructure for testing HG S-band normal-conducting RF accelerating structures and has been under construction since 2016. The main objective o…
View article: Results of the Beam-Loading Breakdown Rate Experiment at the CLIC Test Facility CTF3
Results of the Beam-Loading Breakdown Rate Experiment at the CLIC Test Facility CTF3 Open
The RF breakdown rate is crucial for the luminosity performance of the CLIC linear collider. The required breakdown rate at the design gradient of 100 MV/m has been demonstrated, without beam presence, in a number of 12 GHz CLIC prototype …
View article: Fabrication and High-Gradient Testing of an Accelerating Structure Made From Milled Halves
Fabrication and High-Gradient Testing of an Accelerating Structure Made From Milled Halves Open
Accelerating structures made from parts which follow symmetry planes offer many potential advantages over traditional disk-based structures: more options for joining (from bonding to welding), following this more options for material state…
View article: Fabrication and Testing of a Novel S-Band Backward Travelling Wave Accelerating Structure for Proton Therapy Linacs
Fabrication and Testing of a Novel S-Band Backward Travelling Wave Accelerating Structure for Proton Therapy Linacs Open
Compact and more affordable, facilities for proton therapy are now entering the market of commercial medical accelerators. At CERN, a joint collaboration between CLIC and TERA Foundation led to the design, fabrication and testing of a high…
View article: Design and High Power Measurements of a 3 GHz Rotary Joint for Medical Applications
Design and High Power Measurements of a 3 GHz Rotary Joint for Medical Applications Open
The TUrning LInac for Protontherapy (TULIP) project requires the transport of RF power from modulator/klystron systems at rest on the floor to the linac structures mounted on a rotating gantry, via a waveguide system that can operate over …
View article: Comparison of the conditioning of high gradient accelerating structures
Comparison of the conditioning of high gradient accelerating structures Open
Accelerating gradients in excess of 100 MV/m, at very low breakdown rates, have been successfully achieved in numerous CLIC prototype accelerating structures. The conditioning and operational histories of several structures, tested at KEK …
View article: Beam-Loading Effect on Breakdown Rate in High-Gradient Accelerating Structures
Beam-Loading Effect on Breakdown Rate in High-Gradient Accelerating Structures Open
The Compact Linear Collider (CLIC) study for a future electron-positron collider with a center-of-mass energy up to 3 TeV aims for an accelerating gradient of 100 MV/m. The gradient is limited by RF breakdowns, and the luminosity requireme…
View article: Gamma-Ray Simulated Spectrum Deconvolution of a LaBr<sub>3</sub> 1-×1-in. Scintillator for Nondestructive ATR Fuel Burnup On-Site Predictions
Gamma-Ray Simulated Spectrum Deconvolution of a LaBr<sub>3</sub> 1-×1-in. Scintillator for Nondestructive ATR Fuel Burnup On-Site Predictions Open
A deconvolution method for a LaBr₃ 1"x1" detector for nondestructive Advanced Test Reactor (ATR) fuel burnup applications was developed. The method consisted of obtaining the detector response function, applying a deconvolution algorithm t…