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The clock distribution system for the ATLAS Liquid Argon Calorimeter Phase-I Upgrade Demonstrator
/ Deng, Binwei (Shandong U. ; Southern Methodist U.) ; Chen, Hucheng (Brookhaven) ; Chen, Kai (Brookhaven) ; Chen, Jinghong (Houston U. ; Southern Methodist U.) ; Gong, Datao (Southern Methodist U.) ; Guo, D. (Southern Methodist U. ; Hefei, CUST) ; Hu, Xueye (Brookhaven) ; Huang, Deping (Southern Methodist U.) ; Kierstead, James (Brookhaven) ; Li, Xiaoting (Southern Methodist U. ; Hua-Zhong Normal U.) et al.
A prototype Liquid-argon Trigger Digitizer Board (LTDB), called the LTDB Demonstrator, has been developed to demonstrate the functions of the ATLAS Liquid Argon Calorimeter Phase-I trigger electronics upgrade. Forty Analog-to-Digital converters and four FPGAs with embedded multi-gigabit-transceivers on each Demonstrator need high quality clocks. [...]
arXiv:2401.15750.-
2015-01-09 - 8 p.
- Published in : JINST
Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2014, Aix En Provence, France, 22 - 26 Sep 2014, pp.C01004
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Effect of gamma irradiation on leakage current in CMOS read-out chips for the ATLAS upgrade silicon strip tracker at the HL-LHC
/ Stucci, Stefania Antonia (Brookhaven Natl. Lab.) ; Burns, Russel (Brookhaven Natl. Lab.) ; Lynn, Dave (Brookhaven Natl. Lab.) ; Kierstead, James (Brookhaven Natl. Lab.) ; Kuczewski, Philip (Brookhaven Natl. Lab.) ; van Nieuwenhuizen, Gerrit J (Brookhaven Natl. Lab.) ; Rosin, Guy (UMass Amherst) ; Tricoli, Alessandro (Brookhaven Natl. Lab.)
The increase of the leakage current of NMOS transistors in detector readout chips in certain 130 nm CMOS technologies during exposure to ionising radiation needs special consideration in the design of detector systems, as this can result in a large increase of the supply current and power dissipation. As part of the R&D; program for the upgrade of the ATLAS inner detector tracker for the High Luminosity upgrade of the LHC at CERN, a dedicated set of irradiations have been carried out with the $^60$Co gamma-ray source at the Brookhaven National Laboratory. [...]
SISSA, 2017 - 5 p.
- Published in : PoS TWEPP-17 (2017) 094
Fulltext: PDF; External link: PoS server
In : Topical Workshop on Electronics for Particle Physics, Santa Cruz, Ca, United States Of America, 11 - 15 Sep 2017, pp.094
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Detailed studies of full-size ATLAS12 sensors
/ Hommels, L B A (Cambridge U.) ; Allport, P P (Birmingham U.) ; Baca, M (Birmingham U.) ; Broughton, J (Birmingham U.) ; Chisholm, A (Birmingham U.) ; Nikolopoulos, K (Birmingham U.) ; Pyatt, S (Birmingham U.) ; Thomas, J P (Birmingham U.) ; Wilson, J A (Birmingham U.) ; Kierstead, J (Brookhaven) et al.
The “ATLAS ITk Strip Sensor Collaboration” R&D; group has developed a second iteration of single-sided n + -in-p type micro-strip sensors for use in the tracker upgrade of the ATLAS experiment at the High-Luminosity (HL) LHC. The full size sensors measure approximately 97×97mm2 and are designed for tolerance against the 1.1×1015neq/cm2 fluence expected at the HL-LHC. [...]
Elsevier, 2016 - 7 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 831 (2016) 167-173
In : 10th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Xi'an, China, 25 - 29 Sep 2015, pp.167-173
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Charge collection and field profile studies of heavily irradiated strip sensors for the ATLAS inner tracker upgrade
/ Hara, K (Tsukuba U., GSPAS ; KEK, Tsukuba) ; Allport, P P (Birmingham U.) ; Baca, M (Birmingham U.) ; Broughton, J (Birmingham U.) ; Chisholm, A (Birmingham U.) ; Nikolopoulos, K (Birmingham U.) ; Pyatt, S (Birmingham U.) ; Thomas, J P (Birmingham U.) ; Wilson, J A (Birmingham U.) ; Kierstead, J (Brookhaven) et al.
The ATLAS group has evaluated the charge collection in silicon microstrip sensors irradiated up to a fluence of 1×1016 n eq /cm 2 , exceeding the maximum of 1.6×1015 n eq /cm 2 expected for the strip tracker during the high luminosity LHC (HL-LHC) period including a safety factor of 2. The ATLAS12, n + -on-p type sensor, which is fabricated by Hamamatsu Photonics (HPK) on float zone (FZ) substrates, is the latest barrel sensor prototype. [...]
2016 - 8 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 831 (2016) 181-188
In : 10th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Xi'an, China, 25 - 29 Sep 2015, pp.181-188
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Study of surface properties of ATLAS12 strip sensors and their radiation resistance
/ Mikestikova, M (Prague, Inst. Phys.) ; Allport, P P (Birmingham U.) ; Baca, M (Birmingham U.) ; Broughton, J (Birmingham U.) ; Chisholm, A (Birmingham U.) ; Nikolopoulos, K (Birmingham U.) ; Pyatt, S (Birmingham U.) ; Thomas, J P (Birmingham U.) ; Wilson, J A (Birmingham U.) ; Kierstead, J (Brookhaven) et al.
A radiation hard n + -in- p micro-strip sensor for the use in the Upgrade of the strip tracker of the ATLAS experiment at the High Luminosity Large Hadron Collider (HL-LHC) has been developed by the “ATLAS ITk Strip Sensor collaboration” and produced by Hamamatsu Photonics..
2016 - 10 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 831 (2016) 197-206
In : 10th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Xi'an, China, 25 - 29 Sep 2015, pp.197-206
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Embedded pitch adapters: A high-yield interconnection solution for strip sensors
/ Ullán, M (Barcelona, Inst. Microelectron.) ; Allport, P P (Birmingham U.) ; Baca, M (Birmingham U.) ; Broughton, J (Birmingham U.) ; Chisholm, A (Birmingham U.) ; Nikolopoulos, K (Birmingham U.) ; Pyatt, S (Birmingham U.) ; Thomas, J P (Birmingham U.) ; Wilson, J A (Birmingham U.) ; Kierstead, J (Brookhaven) et al.
A proposal to fabricate large area strip sensors with integrated, or embedded, pitch adapters is presented for the End-cap part of the Inner Tracker in the ATLAS experiment. To implement the embedded pitch adapters, a second metal layer is used in the sensor fabrication, for signal routing to the ASICs. [...]
2016 - 8 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 831 (2016) 221-228
In : 10th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Xi'an, China, 25 - 29 Sep 2015, pp.221-228
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Evaluation of the performance of irradiated silicon strip sensors for the forward detector of the ATLAS Inner Tracker Upgrade
/ Mori, R (Freiburg U.) ; Allport, P P (Birmingham U.) ; Baca, M (Birmingham U.) ; Broughton, J (Birmingham U.) ; Chisholm, A (Birmingham U.) ; Nikolopoulos, K (Birmingham U.) ; Pyatt, S (Birmingham U.) ; Thomas, J P (Birmingham U.) ; Wilson, J A (Birmingham U.) ; Kierstead, J (Brookhaven) et al.
The upgrade to the High-Luminosity LHC foreseen in about ten years represents a great challenge for the ATLAS inner tracker and the silicon strip sensors in the forward region. Several strip sensor designs were developed by the ATLAS collaboration and fabricated by Hamamatsu in order to maintain enough performance in terms of charge collection efficiency and its uniformity throughout the active region. [...]
2016 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 831 (2016) 207-212
In : 10th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Xi'an, China, 25 - 29 Sep 2015, pp.207-212
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Ionizing Energy Depositions After Fast Neutron Interactions in Silicon
/ Bergmann, Benedikt (IEAP CTU, Prague) ; Pospisil, Stanislav (IEAP CTU, Prague) ; Caicedo, Ivan (IEAP CTU, Prague) ; Kierstead, James (Brookhaven) ; Takai, Helio (Brookhaven) ; Frojdh, Erik (CERN)
In this study we present the ionizing energy depositions in a 300 μm thick silicon layer after fast neutron impact. With the Time-of-Flight (ToF) technique, the ionizing energy deposition spectra of recoil silicons and secondary charged particles were assigned to (quasi-)monoenergetic neutron energies in the range from 180 keV to hundreds of MeV. [...]
2016
- Published in : IEEE Trans. Nucl. Sci. 63 (2016) 2372-2378
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