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1. APD readout for Belle II endcap calorimeter upgrade with undoped Cesium Iodide crystals

Author

Alessandro Rossi, Crisostomo Sciacca, Claudia Cecchi, P. Patteri, Elisa Manoni, Alessia Cemmi, I. M. Peruzzi, D. Tagnani, R. de Sangro, Alberto Aloisio, P. Branchini, R. Giordano, G. Finocchiaro, M. Piccolo, P. Lubrano, B. Oberhof, Sergio Cavaliere, A. Passeri, S. Fiore, G. Corradi, E. De Lucia, G. De Nardo, Stefania Baccaro, A. Ordine, G. Felici, M. Montecchi, Fiore, S., Aloisio, Alberto, Baccaro, S., Branchini, P., Cavaliere, S., Cecchi, C., Cemmi, A., Corradi, G., De Lucia, E., DE NARDO, Guglielmo, De Sangro, R., Felici, G., Finocchiaro, G., Giordano, Raffaele, Lubrano, P., Manoni, E., Montecchi, M., Oberhof, B., Ordine, A., Passeri, A., Patteri, P., Peruzzi, I., Piccolo, M., Rossi, A., Sciacca, C., and Tagnani, D.

Subjects
Physics, Nuclear and High Energy Physics, Meson, Calorimeter (particle physics), Radiology, Nuclear Medicine and Imaging, Physics::Instrumentation and Detectors, Physics::Medical Physics, Gamma ray, Physics::Optics, Photodetector, Optical coupling, Nuclear physics, Cesium iodide, Upgrade, Nuclear Medicine and Imaging, Physics::Accelerator Physics, High Energy Physics::Experiment, Irradiation, Radiology
Abstract

The above-mentioned measurements, on crystals, photodetectors and optical couplings, performed at INFN and ENEA laboratories and irradiation facilities, represent a thorough study of options, that will allow the optimal solution for the upgrade of the Belle II end cap calorimeter to be found. © 2014 IEEE.

Published
2014
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2. GARFIELD: A general ARray for fragment identification and for emitted light particles in dissipative collisions

Author

Gramegna, F., Moroni, A., Casini, G., Bruno, M., Abbondanno, U., Bassini, R., Barlini, S., Boiano, A., Boiano, C., Brambilla, S., Cavaletti, R., Chiari, M., Cortesi, A., D Agostino, M., Del Carmine, P., Falsiroli, M., Geraci, E., Giacchini, M., Giussani, A., Kravchuk, V. L., Lanchais, A. L., Malatesta, M., Giacomo Margagliotti, Mastinu, P. F., Milazzo, P. M., Nannini, A., Ordine, A., Tobia, G., Tonetto, F., Travaglini, L., Vannini, G., Vannucci, L., Gramegna, F, Moroni, A, Casini, G, Bruno, M, Abbondanno, U, Bassini, R, Barlini, S, Boiano, A, Boiano, C, Brambilla, S, Cavaletti, R, Chiari, M, Cortesi, A, D'Agostino, M, DEL CARMINE, P, Falsiroli, M, Geraci, E, Giacchini, M, Giussani, A, KRAVCHUK V., L, LANCHAIS A., L, Malatesta, M, Margagliotti, Giacomo, MASTINU P., F, MILAZZO P., M, Nannini, A, Ordine, A, Tobia, G, Tonetto, F, Travaglini, L, Vannini, G, and Vannucci, L.

Published
2004

3. A mechanism to enforce TCP Fairness in 802.11 wireless LANs and its performance evaluation in a real test-bed

Author

Nicola Blefari-Melazzi, Andrea Detti, Stefano Salsano, and Alessandro Ordine

Subjects
TCP acceleration, Settore ING-INF/03 - Telecomunicazioni, Computer science, business.industry, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, TCP tuning, H-TCP, TCP global synchronization, TCP Friendly Rate Control, Zeta-TCP, Fairness measure, Compound TCP, business, Computer network
Abstract

In this paper, we study the problem of maintaining fairness for TCP connections in wireless local area networks (WLANs), based upon the IEEE 802.11 standard and operating in DCF mode. Although this mode of operation ensures fair access to the medium at the MAC level, it does not provide fairness among TCP connections. TCP unfairness may result in significant degradation of performance, leading to users perceiving unsatisfactory quality of service. We propose and analyze a solution capable of enabling TCP fairness with minimal additional complexity. The proposed solution is based on utilizing an IP rate-limiter with an adaptive rate control mechanism and does not require modifying existing standards at the MAC or network layers. The solution is fully compatible with existing devices and can be integrated either within the access point or within and external device (e.g., the network gateway). The performance analysis is performed in a real test-bed and proves the feasibility and effectiveness of our mechanism. To allow fellow researchers to reproduce our work we published on the WEB all the implementation code.

Published
2007
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4. SIP roaming solution amongst different WLAN-based service providers

Author

Alessandro Ordine, Luca Veltri, and Julian F. Gutierrez

Subjects
Authentication, Session Initiation Protocol, Access network, Computer science, business.industry, computer.internet_protocol, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Testbed, Access control, Service provider, Roaming, business, Internetworking, computer, Computer network
Abstract

Deployment of 802.11 wireless LANs is increasingly on the rise leading to new service scenarios in which users are connected everywhere - every time. However the IEEE 802.11 standard was designed for short range wireless data transmissions and does not natively provide any support for roaming amongst different access networks. In the more general case, a mobile user should be expected to be able to roam into a visited domain and gain access to the network on the basis of some credentials shared with his home domain or WISP. There are several mechanisms that can be involved in providing such access control and roaming functionality but no any standard has overcome. In this paper, a new SIP based solution is proposed. SIP-based authentication is provided end-to-end between user-to-network and network-to-network. The proposed solution realizes full proxy-to-proxy authentication at SIP level, enabling dynamic and secure WISP-to-WISP interworking. The proposed solution has been also implemented and successfully tested in a demonstrating testbed

Published
2006
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5. GARFIELD:a general array for fragment identification and for emitted light particles in dissipative collisions 2004 IEEE nuclear science symposium, medical imaging conference, and workshop of room-temperature semiconductor detectors

Author

F. Gramegna, A. Moroni, G. Casini, M. Bruno, U. Abbondanno, R. Bassini, S. Barlini, A. Boiano, C. Boiano, S. Brambilla, R. Cavaletti, M. Chiari, A. Cortesi, M. D'Agostino, P. Del Carmine, M. Falsiroli, E. Geraci, M. Giacchini, A. Giussani, V.L. Kravchuk, A.L. Lanchais, M. Malatesta, G.V. Margagliotti, P.F. Mastinu, P.M. Milazzo, A. Nannini, A. Ordine, G. Tobia, F. Tonetto, L. Travaglini, G. Vannini, and L. Vannucci

Subjects
Nuclear physics, Physics, Range (particle radiation), Photon, Physics::Instrumentation and Detectors, Ionization, Detector, Spark chamber, Particle detector, Charged particle, Semiconductor detector
Abstract

GARFIELD, an apparatus designed to study complex nuclear events produced in the medium-low energy range (5-20 A MeV) heavy ion induced reactions, is presented. Its main components are two newly conceived drift chambers, based on the ∆E-E technique, for fragment and light charged particle identification (θ=30°-150°). The ∆E signals are delivered by 180 micro-strip detectors that amplify the primary ionization produced along the track left by the particle in the gas. The residual energy signals are given by 180 CsI(Tl) crystals. Details both on the main characteristics of the single parts and of the

Published
2005
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6. APD readout for Belle II endcap calorimeter upgrade with undoped Cesium Iodide crystals

Author

Fiore, S., primary, Aloisio, A., additional, Baccaro, S., additional, Branchini, P., additional, Cavaliere, S., additional, Cecchi, C., additional, Cemmi, A., additional, Corradi, G., additional, De Lucia, E., additional, De Nardo, G., additional, de Sangro, R., additional, Felici, G., additional, Finocchiaro, G., additional, Giordano, R., additional, Lubrano, P., additional, Manoni, E., additional, Montecchi, M., additional, Oberhof, B., additional, Ordine, A., additional, Passeri, A., additional, Patteri, P., additional, Peruzzi, I., additional, Piccolo, M., additional, Rossi, A., additional, Sciacca, C., additional, and Tagnani, D., additional

Published
2014
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7. Proton displacement damage in optocouplers

Author

M. D'Ordine

Subjects
Aerospace testing, Optics, Materials science, Proton, urogenital system, business.industry, Absorbed dose, Optoelectronics, Displacement (orthopedic surgery), Irradiation, business, Optical switch
Abstract

Proton testing has been performed on an optocoupler and a slotted optical switch. Test samples were biased while being irradiated to include total ionizing dose effects as well as displacement damage.

Published
2002
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8. A compendium of recent optocoupler radiation test data

Author

J.L. Wert, L.X. Nguyen, J. Mann, R. Koga, A.H. Johnston, S. Crain, G.L. Hash, L. Simpkins, D.L. Oberg, G.K. Lum, M.A. Carts, C.M. Seidleck, Hak Kim, E. Normand, J.W. Howard, Robert A. Reed, J.R. Schwank, S.D. Kniffin, M.V. O'Bryan, Raymond L. Ladbury, S. P. Buchner, Ken LaBel, M. D'Ordine, and C.A. Marshall

Subjects
Physics, Proton, Quantitative Biology::Tissues and Organs, Nuclear Theory, Radiation, Compendium, Ionizing radiation, Nuclear physics, Absorbed dose, Physics::Atomic and Molecular Clusters, Neutron, Heavy ion, Physics::Atomic Physics, Nuclear Experiment, Test data
Abstract

We present a compendium of optocoupler radiation test data including data on neutron, proton and heavy ion displacement damage (DD), single event transients (SET) and degradation due to total ionizing dose (TID). Proton data includes ionizing and non-ionizing damage mechanisms.

Published
2002
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13. A compendium of recent optocoupler radiation test data.

Author

LaBel, K.A., Kniffin, S.D., Reed, R.A., Kim, H.S., Wert, J.L., Oberg, D.L., Normand, E., Johnston, A.H., Lum, G.K., Koga, R., Crain, S., Schwank, J.R., Hash, G.L., Buchner, S., Mann, J., Simpkins, L., D'Ordine, M., Marshall, C.A., O'Bryan, M.V., and Seidleck, C.M.

Published
2000
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14. TCP Fairness Issues in IEEE 802.11 Networks: Problem Analysis and Solutions Based on Rate Control.

Author

Blefari-Melazzi, N., Detti, A., Habib, I., Ordine, A., and Salsano, S.

Abstract

In this paper, we study the problem of maintaining fairness for TCP connections in wireless local area networks (WLANs) based upon the IEEE 802.11 standard. Current implementations of 802.11 use the so-called distributed coordination function (DCF), which provides similar medium access priority to all stations. Although this mode of operation ensures fair access to the medium at the MAC level, it does not provide any provisions for ensuring fairness among the TCP connections. TCP unfairness may result in significant degradation of performance leading to users perceiving unsatisfactory quality of service. We propose and analyze two solutions that are capable of enabling TCP fairness with minimal additional complexity. The proposed solutions are based on utilizing a rate-control mechanism in two modes: static or adaptive. They do not require modifying existing standards at the MAC or network layers. Hence, they are fully compatible with existing devices. Our performance analysis results prove the efficaciousness of our proposed solutions in achieving TCP fairness compared to existing approaches. We have, also, implemented the proposed solutions in an ad-hoc experimental test-bed, and performed measurements to demonstrate the validity of our approach and results [ABSTRACT FROM PUBLISHER]

Published
2007
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15. A Compact Digital Delay Module With VME and FAIR Interfaces.

Author

Ordine, Antonio, Boiano, Alfonso, de Cesare, Walter, D'Onofrio, Antonio, Giordano, Gerardo, and Spadaccini, Giulio

Subjects
*COMPACTING, *COMPRESSIBILITY, *DIGITAL images, *INTERFACE circuits, *ELECTRONIC circuits, *LOGIC circuits
Abstract

A very compact 32-channel digital delay module has been designed to fit in a single VME 6U unit. It is equipped with both VME and Fast Intercrate Readout (FAIR) interfaces. Furthermore, a local manual programmability was implemented to use the modulealso in a stand-alone mode. A variety of NIM and ECL output have been implemented. A special ECL input allows the selection of different output regimes. The thermal stabilization is controlled via a PLL based circuit. The main features of the module are the wide range for the delay and the width of the output pulse: from 25 as up to 6400 ns, in 25 as steps; and the low jitter: values of the order of 27 ps (11 ppm) were measured in several bench tests. [ABSTRACT FROM AUTHOR]

Published
2004
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16. FAIR: A new fast trigger and readout bus system.

Author

Ordine, A., Boiano, A., Vardaci, E., Zaghi, A., and Brondi, A.

Subjects
*ELECTRONICS
Abstract

Presents information on a Fast Intercrate Readout (FAST) bus system. Provision of fast data transfer and event building by the system; In-depth look at the features and layout of the system; Details on the operational properties of the system.

Published
1998
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17. Proton-induced transients in optocouplers: In-flight anomalies, ground irradiation test,...

Author

LaBel, Kenneth A., Marshall, Paul W., Marshall, Cheryl J., D'Ordine, Mary, Carts, Martin, Lum, Gary, Kim, Hak S., Seidleck, Christina M., Powell, Timothy, Abbott, Randy, Barth, Janet, and Stassinopoulos, E.G.

Subjects
PROTONS
Abstract

Presents information pertaining to the proton-induced transients in optocouplers in connection with in-flight anomalies. Observation of proton-induced transients; Indication of results; Description of optocouplers.

Published
1997
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19. GARFIELD:a general array for fragment identification and for emitted light particles in dissipative collisions 2004 IEEE nuclear science symposium, medical imaging conference, and workshop of room-temperature semiconductor detectors

Author

Gramegna, F., primary, Moroni, A., additional, Casini, G., additional, Bruno, M., additional, Abbondanno, U., additional, Bassini, R., additional, Barlini, S., additional, Boiano, A., additional, Boiano, C., additional, Brambilla, S., additional, Cavaletti, R., additional, Chiari, M., additional, Cortesi, A., additional, D'Agostino, M., additional, Del Carmine, P., additional, Falsiroli, M., additional, Geraci, E., additional, Giacchini, M., additional, Giussani, A., additional, Kravchuk, V.L., additional, Lanchais, A.L., additional, Malatesta, M., additional, Margagliotti, G.V., additional, Mastinu, P.F., additional, Milazzo, P.M., additional, Nannini, A., additional, Ordine, A., additional, Tobia, G., additional, Tonetto, F., additional, Travaglini, L., additional, Vannini, G., additional, and Vannucci, L., additional

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20. A compendium of recent optocoupler radiation test data

Author

LaBel, K.A., primary, Kniffin, S.D., additional, Reed, R.A., additional, Kim, H.S., additional, Wert, J.L., additional, Oberg, D.L., additional, Normand, E., additional, Johnston, A.H., additional, Lum, G.K., additional, Koga, R., additional, Crain, S., additional, Schwank, J.R., additional, Hash, G.L., additional, Buchner, S., additional, Mann, J., additional, Simpkins, L., additional, D'Ordine, M., additional, Marshall, C.A., additional, O'Bryan, M.V., additional, Seidleck, C.M., additional, Nguyen, L.X., additional, Carts, M.A., additional, Ladbury, R.L., additional, and Howard, J.W., additional

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