Dr
Gabriele Bigongiari
(Università di Siena/INFN-Sezione di Pisa)
10/4/18, 2:30 PM
Poster
Unambiguous measurements of the energy spectra and of the composition of cosmic rays up to the knee region, around 1 PeV, could provide important clues on their origin, acceleration mechanism, propagation, and composition. A space experiment dedicated to measurements in this energy region has to achieve a balance between the requirements of lightness and compactness, with that of a large...
Dr
Antonella De Ninno
(ENEA FSN-TECFIS-DIM)
10/4/18, 2:30 PM
Poster
Classical theories of electrolytes are based on the picture of a fully ionised gas [1] because it is assumed that, during the solution, salts are completely dissociated in ions. This makes the theoretical problem of the electrolytic solutions equivalent to the problem of a fully ionised gas.
We studied the water molecule organization in chlorides salts by using the methods of the classical...
Mr
Philip Martin
(Queen's University Belfast)
10/4/18, 2:30 PM
Poster
Imaging Plates (IPs), relying on photo-stimulated luminescence (PSL) are amongst the most popular and reliable detectors for laser driven particle acceleration experiments. IPs are composed of an active layer on top of a magnetic base [1]. The Fujifilm BAS-SR and BAS-MS brands of imaging plate also have a protective layer over the active layer, however the BAS-TR, which this presentation will...
Mr
Aodhan McIlvenny
(Queen's University of Belfast)
10/4/18, 2:30 PM
Poster
Laser driven ions have gained significant attention due some of their unique properties making them a potential source of high energy radiation for a range of applications including particle therapy. Current facilities produce particles up to ~100 MeV with an ultra-short duration (~1ps at the source)1. Some of these facilities, typically the ones based on Ti:Sapphire, ultra-short pulse lasers,...
Dr
Valentina Gabbarini
(Department of Industrial Engineering, University of Rome “Tor Vergata”, Via del Politecnico 1, Rome, Italy, 00133)
10/4/18, 2:30 PM
Poster
Bacteria, viruses and fungi may proliferate in heating, ventilating, and air-conditioning (HVAC) systems, representing a serious concern in healthcare settings, due to the occurrence of nosocomial infections in vulnerable patients. Detection and classification of biological agents are not easy, especially at an early stage of contamination and when more than one species are aerodispersed. Our...
Dr
Francesca Fumian
(Joint NBC Defence school of Rieti)
10/4/18, 2:30 PM
Poster
During the latest decades, an increasing of threats associated to CBRN events took place.
For what regards break-out of chemical and radiological compounds, several episodes have occurred, such as unwanted industrial leakage, intentional use of chemical weapons by non-state actors or smuggling of nuclear material, that, by materializing a global threat, have conducted to casualties the actors...
Mr
Bohdan Bieg
(Maritime University of Szczecin, Poland)
10/4/18, 2:30 PM
Poster
Polarimetry measurement results are used in tokamak plasma equilibrium codes as a constraint, decreasing the measurement uncertainty in determination plasma current, safety factor and density profile. In numerical codes, instead of solving rigorous equation of polarimetric state evolution, approximate analytical expression could be used to increase computing efficiency. In this paper is...
Afra Romano
(ENEA, Fusion and Nuclear Safety Department, Via E. Fermi 45, 00044 Frascati (RM), Italy)
10/4/18, 2:30 PM
Poster
Studies of runaway electrons in tokamaks are essential to improve prediction and control of plasma disruptions, for a reliable application on nuclear fusion [1]. The potential damage of such a localised beam of highly-energetic particles striking the vessel wall is substantial, particularly in view of future large tokamaks, such as ITER, since the runaway generation rate increases...
Dr
Pasquale Gaudio
(Universita Roma2 Tor Vergata), Dr
edmondo giovannozzi
(enea frascati), Mr
riccardo Rossi
(Universita Roma2 Tor Vergata)
10/4/18, 2:30 PM
Poster
The absolute calibration in Thomson Scattering (TS) systems is done usually by measuring the scattered light by a gas like Nitrogen or Hydrogen at a given pressure[1,2]. The Raman lines of Nitrogen or Hydrogen are used to avoid the stray light at the laser wavelength. Since the measured signal can be accurately calculated knowing the cross section from this signal the spatial emission profile...
Mrs
Martina Salvadori
(Sapienza University of Rome and ENEA)
10/4/18, 2:30 PM
Poster
A promising field of application of the X-ray radiation generated by intense laser-matter interaction is the contact-microscopy of biological samples. In order to optimize the yield on the desired spectral window, it is fundamental to have accurate characterization of this emitted radiation. To this purpose, an experimental campaign is underway with the three-nanosecond phosphate Nd:glass...
Dr
Massimo Piccinini
(ENEA Frascati)
10/4/18, 2:30 PM
Poster
Recently, novel solid-state radiation detectors, based on the photoluminescence of stable point defects in lithium fluoride (LiF) crystals, have been used for advanced diagnostics of the segment up to 27 MeV of the TOP-IMPLART proton linear accelerator for protontherapy applications, under development at ENEA C.R. Frascati.
Due to the peculiar particle-matter interactions, in the LiF...
Dr
Teddy Craciunescu
(National Institute for Lasers, Plasma and Raadiation Physics, Bucharest, Romania)
10/4/18, 2:30 PM
Poster
Gamma-ray diagnostics are some of the most important tools for the fast-ion studies in fusion devices. Intense gamma-ray emission is produced when fast ions (fusion products, ICRF driven ions and NBI-injected ions) react either with plasma fuel ions or with the plasma impurities such as beryllium and carbon [1]. On JET, the gamma-ray emission measurements are routinely used to interpret...
Dr
Benedetta Baiocchi
(Consiglio Nazionale delle Ricerche)
10/4/18, 2:30 PM
Poster
A certain number of plasma parameters can be diagnosed with a technique implemented in the last decades in several tokamak devices, which exploits the detection of emissions due to Collective Thomson Scattering (CTS) of a probe radiation by plasma ion populations. Since the beginning, this diagnostic was mainly developed to locally measure the spectral power density which gives information...
Ms
Kathryn Polin
(Queen's University Belfast)
10/4/18, 2:30 PM
Poster
Due to the phenomenon of the Bragg Peak, the use of charged particle beams in cancer treatment allows for precise energy deposition in a tumour, whilst largely reducing the dose deposited to the surrounding healthy tissue in comparison with treatment from traditional photon radiotherapy. However, the residual dose that is deposited to the surrounding area is non-negligible and may result in...
Mr
Paweł Linczuk
(Institute of Plasma Physics and Laser Microfusion)
10/4/18, 2:30 PM
Poster
Plasma magnetic confinement with tokamak device usage is a complex phenomenon. To understand it clearly, various diagnostics must be used. One of them is plasma impurities monitoring, which can be done with measurement of their soft X-ray radiation. Our system implements such functionality [1].
Done from scratch with Gas Electron Multiplier (GEM) based detector, analog and digital (with...
Dr
benedetta baiocchi
(IFP CNR Milano), Dr
francesco paolo orsitto
(CREATE Consortium and ENEA Frascati), Dr
william Bin
(IFP CNR Milano)
10/4/18, 2:30 PM
Poster
The low temperature kinetic model was introduced in the context of interpretation of Collective Thomson Scattering measurements. The key hypothesis of the model is related to the physical as- sumption that in the context of unmagnetised plasma the phase velocity of the plasma fluctuations which scatter the incident beam is higher than the thermal velocity of the electrons. The physics scheme...
Mr
Giuseppe Galatola Teka
(ENEA)
10/4/18, 2:30 PM
Poster
Proto-Sphera is an innovative plasma confinement concept based on the formation of a toroidal plasma around an axial screw pinch which provides the toroidal magnetic field. Optical emission (OE) from the Proto-Sphera device is detected by a compact spectrometer array covering the range 235-790 nm with the resolution from 0.09 nm in UV to 0.14 nm in IR. Plasmas formed in both Argon and Hydrogen...
Dr
J. Chrzanowski
(Maritime University of Szczecin, Szczecin, Poland), Dr
francesco paolo orsitto
(CREATE Consortium and ENEA Frascati)
10/4/18, 2:30 PM
Poster
The study is dedicated to the evaluation of the effects of the input polarisation angle with the respect to the toroidal magnetic feld on the values of the Faraday Rotation, Cotton-Mouton phase shift angle (and then ellipticity) . The need of this evaluation is connected to the optimisation of the polarimetry quantities in view of having a complete information related to magnetic fields,...
Giulia Becatti
(University of Pisa)
10/4/18, 2:30 PM
Poster
Lanthanum hexaboride hollow cathodes have been the prime choice for high power Hall thruster applications, under development for the next generation of manned and robotic interplanetary missions. In this scenario, SITAEL is actively developing high current hollow cathodes capable of providing discharge current in the range 10-100 A to be coupled with high power Hall thrusters.
Despite the...
Dr
Fabrizio Consoli
(ENEA - Centro Ricerche Frascati)
10/4/18, 2:30 PM
Poster
Radiofrequency-microwave electromagnetic pulses (EMPs) of high intensity generated by powerful pulsed laser-matter interaction are a very hot topic of research. They are often detrimental for active diagnostics placed around the interaction region, but could be used for diagnostic purposes or for application to studies on materials and devices in these extreme conditions. This is a common and...
Dr
Maciej Linczuk
(Warsaw University of Technology, Institute of Electronics Systems)
10/4/18, 2:30 PM
Poster
Scintillators are commonly used in many gamma-ray experiments because they are characterized by a good energy resolution and a rather high detection efficiency for a few MeV gamma-rays. Gamma-ray peaks, especially full energy, single escape and double escape peaks registered in scintillators, are relatively broad and observed on a high non-linear background. Any software dealing with the...
Dr
Gerardo Claps
(ENEA)
10/4/18, 2:30 PM
Poster
The x-rays and gammas diagnostic on Laser Produced Plamas (LPPs) is a challenging task. In both cases the photons emission comes in burst that last from few tens of ps to few ns, depending on the power and the laser pulse time width. A measurement of the photon flux cannot be performed using traditional diagnostics systems. In this work we propose the innovative usage of two detectors: the...
Dr
Zhimeng Hu
(Università degli Studi di Milano-Bicocca)
10/4/18, 2:30 PM
Poster
A time-of-flight enhanced diagnostic (TOFED) neutron spectrometer has been developed as a neutron emission spectroscopy for plasma physics study in the Experimental Advanced Superconducting Tokamak (EAST). The TOFED was previously installed in a shield positioned inside the EAST experimental hall, but could not work well because of high γ-ray background. A new neutron diagnostic house was...
Dr
Riccardo Rossi
(1Department of Industrial Engineering, University of Rome “Tor Vergata”, Via del Politecnico 1, Rome, Italy, 00133)
10/4/18, 2:30 PM
Poster
Nowadays, the monitoring of air in the environment is crucial to prevent chemical poisoning and disease onsets. Among the several techniques used to monitor the environment, the DIAL method has a very interesting approach. It is a remote technique able to give linear, areal or volumetric information. The range can be very large (until than 2 km) and the response is fast. Contrariwise, the...
Dr
Salvatore Macis
(Università Roma Tor Vergata)
10/4/18, 2:30 PM
Poster
One of the main goals of the next generation of accelerators is to use cavities with higher RF fields, reducing significantly the length of particle accelerators. In order to accomplish these objectives is necessary to reduce the overheating effects due to the RF and to the electrical breakdown that induce damages on the surface of any RF device. In order to accomplish these objectives is...
Mr
David Rohrbach
(University of Bern)
10/4/18, 2:30 PM
Poster
In a free-electron laser a beam of relativistic electrons is moving in vacuum trough a magnetic undulator producing electromagnetic radiation with high brightness and narrow bandwidth. In order to build a table-top source one has to reduce the undulator periodicity. One approach for realizing such mini-undulator is by laser micromachining permanent magnets or by electroplating a magnetic...
Dr
Valentina Scuderi
(ELI-Beamlines, IoP-ASCR; INFN-LNS)
10/4/18, 2:30 PM
Poster
Significant challenges in the detection of laser-accelerated ions result from the high flux (10$^{10}$-10$^{12}$ ions/pulse) and the short bunch duration (0.1 - 1 ns near the source), which are intrinsic to laser-driven sources. While the progress towards the stringent requirements of such applications (higher energies, repeatable generation, mono-chromaticity) will be facilitated by the...
Mr
Mario Galletti
(Instituto Superior Tecnico)
10/4/18, 2:30 PM
Poster
The complete characterization of the laser pulse parameters was made using a new algorithmic method: GRenouille/FrOG (GROG), based on the 1D Conjugate Gradient Minimization Method. The purpose is, analyzing experimental FROG/GRENOUILLE traces, to accurately retrieve intensity and phase both in the temporal and spectral domain so as to completely characterize an Ultra Short High Power laser...
