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001-es BibID:	BIBFORM086134
035-os BibID:	(WoS)000454236100008 (Scopus)85056178968
Első szerző:	Aidala, C. A.
Cím:	Design and Beam Test Results for the sPHENIX Electromagnetic and Hadronic Calorimeter Prototypes / C. A. Aidala, V. Bailey, S. Beckman, R. Belmont, C. Biggs, J. Blackburn, S. Boose, M. Chiu, M. Connors, E. Desmond, A. Franz, J. S. Haggerty, X. He, M. M. Higdon, J. Huang, K. Kauder, E. Kistenev, J. LaBounty, J. G. Lajoie, M. Lenz, W. Lenz, S. Li, V. R. Loggins, E. J. Mannel, T. Majoros, M. P. McCumber, J. L. Nagle, M. Phipps, C. Pinkenburg, S. Polizzo, C. Pontieri, M. L. Purschke, J. Putschke, M. Sarsour, T. Rinn, R. Ruggiero, A. Sen, A. M. Sickles, M. J. Skoby, J. Smiga, P. Sobel, P. W. Stankus, S. Stoll, A. Sukhanov, E. Thorsland, F. Toldo, R. S. Towell, B. Ujvari, S. Vazquez-Carson, C. L. Woody
Dátum:	2018
ISSN:	0018-9499
Megjegyzések:	The super Pioneering High Energy Nuclear Interaction eXperiment (sPHENIX) at the Relativistic Heavy Ion Collider will perform high-precision measurements of jets and heavy flavor observables for a wide selection of nuclear collision systems, elucidating the microscopic nature of strongly interacting matter ranging from nucleons to the strongly coupled quark-gluon plasma. A prototype of the sPHENIX calorimeter system was tested at the Fermilab Test Beam Facility as experiment T-1044 in the spring of 2016. The electromagnetic calorimeter (EMCal) prototype is composed of scintillating fibers embedded in a mixture of tungsten powder and epoxy. The hadronic calorimeter (HCal) prototype is composed of tilted steel plates alternating with the plastic scintillator. Results of the test beam reveal the energy resolution for electrons in the EMCal is 2.8%? 15.5%/?E and the energy resolution for hadrons in the combined EMCal plus HCal system is 13.5%?64.9%/?E. These results demonstrate that the performance of the proposed calorimeter system satisfies the sPHENIX specifications.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	IEEE Transactions On Nuclear Science. - 65 : 12 (2018), p. 2901-2919. -
További szerzők:	Bailey, Virginia Beckman, S. Belmont, R. Biggs, C. Blackburn, J. Boose, S. Chiu, M. Connors, M. Desmond, E. Franz, A. Haggerty, J. S. He, Xiaochun Higdon, M. M. Huang, Jin Kauder, Kolja Kistenev, E. LaBounty, J. Lajoie, J. G. Lenz, M. Lenz, W. Li, S. Loggins, V. R. Mannel, Eric J. Majoros Tamás (1991-) (mérnök, informatikus) McCumber, M. P. Nagle, J. L. Phipps, M. Pinkenburg, Christopher Polizzo, S. Pontieri, C. Purschke, M. L. Putschke, J. Sarsour, M. Rinn, T. Ruggiero, R. Sen, A. Sickles, A. M. Skoby, M. J. Smiga, J. Sobel, P. Stankus, P. W. Stoll, S. Sukhanov, A. Thorsland, E. Toldo, F. Towell, R. S. Ujvári Balázs (1977-) (fizikus) Vazquez-Carson, S. Woody, C. L.
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001-es BibID:	BIBFORM134115
035-os BibID:	(WOS)001402495600001 (Scopus)85213843689
Első szerző:	Baranyai Dávid (Mérnökinformatikus)
Cím:	Fast spark-detection system for GEM detectors / David Baranyai, Tamas Majoros, Balazs Ujvari, Julian Driebeek, Thomas Hemmick, Gabor David, Evgeny Shulga, Ross Corliss, Charles Hughes, Babak Azmoun, Jin Huang, Takao Sakaguchi, John Kuczewski, Prakhar Garg
Dátum:	2025
ISSN:	0168-9002 1872-9576
Megjegyzések:	The sPHENIX experiment is currently under commissioning at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Lab (BNL). The Time Projection Chamber (TPC) serves as a tracking detector for the experiment. The sPHENIX TPC uses a stack of four Gas Electron Multipliers (GEMs) as again stage in a reduced ion back-flow configuration. To mitigate the damaging effects of sparks in the GEMs, an online spark monitoring system was created. Once the system detects a spark in a GEM stack, the voltages across the GEMs in that stack can be lowered to prevent further sparking without affecting the gain and efficiency of the other modules. Spark signals are coupled out of the GEM stack by a pick-off capacitor attached to the bottom of the bottom GEM. Custom PCBs convert the oscillatory spark signal into a mono-polar pulse that is then digitized. The software then saves the waveform in a server and uses experimentally derived thresholds to determine how to react. The system has so far proven to be effective at improving the stability of the TPC and preventing damaging events while collecting cosmic ray data.
Tárgyszavak:	idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Gas Electron Multiplier GEM Spark-protection Time Projection Chamber TPC Capacitive pickoff
Megjelenés:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. - 1072 (2025), p. 1-4. -
További szerzők:	Majoros Tamás (1991-) (mérnök, informatikus) Ujvári Balázs (1977-) (fizikus) Driebeek, Julian Hemmick, Thomas David, Gabor Shulga, Evgeny Corliss, Ross Hughes, Charles Azmoun, Babak Huang, Jin Sakaguchi, Takao Kuczewski, John Garg, Prakhar
Pályázati támogatás:	OTKA-131991 OTKA
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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