57 citations · 253 across the 17 of their papers we have counts for
18 papers
Automated control and optimisation of laser driven ion acceleration
B. Loughran, M. J. V. Streeter, H. Ahmed +32
The interaction of relativistically intense lasers with opaque targets represents a highly non-linear, multi-dimensional parameter space. This limits the utility of sequential 1D s…
Assessment of the reliability of Deconvolution Procedures for RCF Spectroscopy of Laser-Driven Ion Beams
S. McCallum, G. Milluzzo, M. Borghesi +2
Laser-driven ion beams are defined by a number of unique features, including a large spread in energy. A stack configuration of radiochromic film (RCF) can be utilized to character…
Dynamics of nanosecond laser pulse propagation and of associated instabilities in a magnetized underdense plasma
W. Yao, A. Higginson, J. -R. Marquès +19
The propagation and energy coupling of intense laser beams in plasmas are critical issues in laser-driven inertial confinement fusion. Applying magnetic fields to such a setup has…
Investigating particle acceleration dynamics in interpenetrating magnetized collisionless super-critical shocks
W. Yao, A. Fazzini, S. N. Chen +9
Colliding collisionless shocks appear in a great variety of astrophysical phenomena and are thought to be possible sources of particle acceleration in the Universe. We have previou…
Heisenberg's uncertainty principle in the PTOLEMY project: a theory update
PTOLEMY Collaboration, A. Apponi, M. G. Betti +58
We discuss the consequences of the quantum uncertainty on the spectrum of the electron emitted by the -processes of a tritium atom bound to a graphene sheet. We analyze quantita…
Calibration of BAS-TR image plate response to GeV gold ions
D. Doria, P. Martin, H. Ahmed +17
The response of the BAS-TR image plate (IP) was absolutely calibrated using CR-39 track detector for high linear energy transfer (LET) Au ions up to 1.6 GeV (8.2 MeV/nucleon)…
Detector Array Readout with Traveling Wave Amplifiers
A. Giachero, C. Barone, M. Borghesi +35
Noise at the quantum limit over a large bandwidth is a fundamental requirement for future applications operating at millikelvin temperatures, such as the neutrino mass measurement,…
Bimodal Approach for Noise Figures of Merit Evaluation in Quantum-Limited Josephson Traveling Wave Parametric Amplifiers
L. Fasolo, C. Barone, M. Borghesi +37
The advent of ultra-low noise microwave amplifiers revolutionized several research fields demanding quantum-limited technologies. Exploiting a theoretical bimodal description of a…
Implementation and Optimization of the PTOLEMY Transverse Drift Electromagnetic Filter
A. Apponi, M. G. Betti, M. Borghesi +53
The PTOLEMY transverse drift filter is a new concept to enable precision analysis of the energy spectrum of electrons near the tritium beta-decay endpoint. This paper details the i…
Processing of non-constant baseline pulses: a matrix technique
C. Ferrari, M. Borghesi, M. Faverzani +3
For a high source activity experiment, such as HOLMES, non-constant baseline pulses could constitute a great fraction of the data-set. We test the optimal filter matrix technique,…
Progress in the development of TES microcalorimeter detectors suitable for neutrino mass measurement
A. Giachero, B. Alpert, D. T. Becker +19
The HOLMES experiment will perform a precise calorimetric measurement of the end point of the Electron Capture (EC) decay spectrum of 163Ho in order to extract information on neutr…
A novel approach for nearly-coincident events rejection
M. Borghesi, M. De Gerone, M. Faverzani +6
We present a novel technique, called DSVP (Discrimination through Singular Vectors Projections), to discriminate spurious events within a dataset. The purpose of this paper is to l…
Working principle and demonstrator of microwave-multiplexing for the HOLMES experiment microcalorimeters
D. T. Becker, D. A. Bennett, M. Biasotti +21
The determination of the neutrino mass is an open issue in modern particle physics and astrophysics. The direct mass measurement is the only theory-unrelated experimental tool capa…
General features of experiments on the dynamics of laser-driven electron-positron beams
J. R. Warwick, A. Alejo, T. Dzelzainis +14
The experimental study of the dynamics of neutral electron-positron beams is an emerging area of research, enabled by the recent results on the generation of this exotic state of m…
Experimental observation of a current-driven instability in a neutral electron-positron beam
J. Warwick, T. Dzelzainis, M. E. Dieckmann +16
We report on the first experimental observation of a current-driven instability developing in a quasi-neutral matter-antimatter beam. Strong magnetic fields ( 1 T) are measur…
Shocks in unmagnetized plasma with a shear flow: Stability and magnetic field generation
M. E. Dieckmann, A. Bock, H. Ahmed +4
A pair of curved shocks in a collisionless plasma is examined with a two-dimensional particle-in-cell (PIC) simulation. The shocks are created by the collision of two electron-ion…
Selective Deuterium Ion Acceleration Using the Vulcan PW Laser
AG Krygier, JT Morrison, S Kar +17
We report on the successful demonstration of selective acceleration of deuterium ions by target-normal sheath acceleration (TNSA) with a high-energy petawatt laser. TNSA typically…
Particle simulation study of electron heating by counterstreaming ion beams ahead of supernova remnant shocks
M. E. Dieckmann, A. Bret, G. Sarri +3
The growth and saturation of Buneman-type instabilities is examined with a particle-in-cell (PIC) simulation for parameters that are representative for the foreshock region of fast…