Technology R&D (CSN5)

 

APEIRON (R. Ammendola)
 

            

APEIRON (Abstract Processing Environment for Intelligent Read-Out systems based on Neural networks) is a framework built upon a distributed computing general architecture for heterogeneous platforms and its software stack (from device drivers to high level programming environment). This framework is meant to be effectively used in the study, prototyping and deployment of TDAQ smart systems for HEP experiments. The architecture is organized in layers of distributed processing nodes, starting from a number of data sources (typically detectors or sub-detectors), following a streaming approach from data readout to low lever trigger or data storage. The computing platform consists of a modular and scalable network infrastructure, and a specialized set of computing devices (CPU, FPGA, GPU) in order to exploit hardware acceleration and use case adaptability in terms of latency and computing throughput.

 


 

FEEL (G. Salina)
 

           

The DIGITHEL2 experiment is dedicated to the design of high-speed ultra low-power digital gates with superconducting technologies and is conducted by INFN Roma Tor Vergata and the University of Roma Tor Vergata Physics Detartment in close collaboration with Hypres inc.
Two different kinds of technologies are studied: the Energy-efficient Rapid Single Flux Quantum (ERSFQ) and the negative-inductance SQUID (nSQUID). A series of toggle Flip Flops in ERSFQ technology, a NOT gate and a shift register in nSQUID technology were designed and successfully tested.
The final goal of the DIGITHEL2 experiment is the design of a 4 bit Arithmetic Logic Unit in nSQUID technology.

 


 

LAG (M. Visco)

          
A gravitation laboratory experiment invariably consists of one or more field masses interacting with a test mass, usually suspended on a torsion pendulum. Due to the physical dimensions of the interacting masses, comparable to their mutual distance, an important element of the experiment is a careful characterization and modeling of the interaction.
The LAG (Liquid Actuated Gravity) experiment aims to develop and test a new kind of field mass for a laboratory gravity experiment based on a varying amount a liquid in a container near the test mass. The change of the liquid level modulates the force and allows a reduction of low frequency noises. The LAG's liquid actuator should introduce less systematic errors than the solid field masses used so far in similar experiments. Within LAG experiment duration,  we aim to build a prototype of a liquid field mass to be tested on  PETER, a unique instrument based on a double torsion.

 


 

MC-INFN (MC. Morone)

Under construction.

 


 

QUICHE (A. Salamon)

Under construction.

 


 

SLICE (D. Badoni)
 

            

Slice aims to investigate on small and high-performance detectors realization feasibility, mainly based on SiPM, but also on other detectors such as CzTe solid-state detectors, using programmable, sophisticated mixed electronics (analog/digital) with high integration density (90-40 nm), large consumption and low-cost SoC (System on a Chip). These systems can be used as an alternative to the realization of ASIC (application-specific integrated circuit) which have their limitation in the very high development and construction costs, in the foundry dependence and the rapid obsolescence as well as often, in the missing of DAQ and transmission devices.
Specifically, the idea is to investigate on the possible use of the latest generation SoC microcontrollers, with bluetooth and wifi connections on-chip, low power long-range communication systems such as LoRa, TDC based on the TOF of the range finders or Lidars (Light Detection and Ranging) with a precision of about ten picoseconds, time tag systems based on GPS chip or on Chip Scale Atomic Clock in the absence of the GPS signal. Analog signals conditioning and power supply circuits will be obtained using high densities discrete components such as opamps, discriminators and dc-dc converters.

 


 

SL_COMB2FEL (A. Cianchi)

The SL_COMB experiment aims at realizing an accelerated beam by the interaction of charged particles with a ionized plasma.
A so-called driver beam excites a plasma wave giving its energy to the plasma. After the driver beam a so-called witness beam is injected in the excited plasma with the appropriate phase and is accelerated by the plasma waves.
This accelerator technique has been already successfully proven in the past. The accelerating gradient of a plasma accelerator machine is at least two order of magnitude bigger than in conventional machines. The possibility to achieve such big accelerating gradients will allow to significantly reduce accellerator machine dimensions with obvious advantages in many applications from high energy physics, to material science and medical applications.
The main goal of the SL_COMB collaboration is to provide plasma based acceleration with a beam quality comparable to conventional acceleration techniques. In particular, the Tor Vergata group is involved in the design of the machine diagnostic system.

 


 

SR3T (G. Paradossi)

          

Aim of the project is developing a phase shift dosimeter, triggered by ionizing photons for radiotherapy.
Biocompatible microdroplets, made of a liquid perfluorocarbon in supercritical conditions, under a radioactive beam undergo a transition to microbubbles. Their density can be detected by ultrasound imaging and linked to the dose effectively delivered to the organ.
Hospital/IRCCS involved in the research - University hospital (PTV), in collaboration with Prof. Rolando D~Angelillo, Dr. Roberto Miceli, Radiotherapy Department.
The irradiation experiment, carried out with Dr. Miceli using a linear accelerator (Elekta Precise) at 6 MV, has highlighted the effective capability of the microdroplet to make a phase transition at a dose of 10 Gy and a dose rate of 5 Gy/min (± 5%).