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In situ micro gas tungsten constricted arc welding of ultra-thin walled 2.275 mm outer diameter grade 2 commercially pure titanium tubing
/ Cooper, L (Rutherford) ; Crouvizier, M (CERN) ; Edwards, S ; French, R (CERN) ; Gannaway, F (Queen Mary, U. of London) ; Kemp-Russell, P (Sheffield U.) ; Marin-Reyes, H (CERN) ; Mercer, I (Lancaster U.) ; Rendell-Read, A (Unlisted, UK) ; Viehhauser, G (Oxford U.) et al.
Ultra-thin walled cooling tubes for heat exchangers and condenser units have applications in multiple high-value manufacturing industries. Grade 2 commercially pure titanium (CP-2 Ti) requires far less mass to achieve the same mass flow handling abilities as stainless steel tubing yet it is more challenging to join, particularly at wall thicknesses less than 500 μm (termed ultra-thin walled tube). [...]
2020 - 25 p.
- Published in : JINST 15 (2020) P06022
Fulltext: PDF;
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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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Development of n$^+$-in-p large-area silicon microstrip sensors for very high radiation environments – ATLAS12 design and initial results
/ Unno, Y (KEK, Tsukuba) ; Edwards, S O (Birmingham U.) ; Pyatt, S (Birmingham U.) ; Thomas, J P (Birmingham U.) ; Wilson, J A (Birmingham U.) ; Kierstead, J (Brookhaven) ; Lynn, D (Brookhaven) ; Carter, J R (Cambridge U.) ; Hommels, L B A (Cambridge U.) ; Robinson, D (Cambridge U.) et al.
We have been developing a novel radiation-tolerant n + -in-p silicon microstrip sensor for very high radiation environments, aiming for application in the high luminosity large hadron collider. The sensors are fabricated in 6 in., p-type, float-zone wafers, where large-area strip sensor designs are laid out together with a number of miniature sensors. [...]
2014 - 11 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 765 (2014) 80-90
In : 9th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Hiroshima, Japan, 2 - 6 Sep 2013, pp.80-90
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Scanning facility to irradiate mechanical structures for the LHC upgrade programme
/ Dervan, P (UNILIV) ; French, R (USFD) ; Hodgson, P (USFD) ; Marin-Reyes, H (USFD) ; Parker, K (USFD) ; Wilson, J (UoB) ; Baca, M (UoB)
The existing luminosity of the LHC will be increased in stages to a factor of 10 above its current level (HL-LHC) by 2022. This planned increase in luminosity results in significantly higher levels of radiation inside the proposed ATLAS Upgrade detector. [...]
AIDA-CONF-2015-021.-
Geneva : CERN, 2015
- Published in : PoS TIPP2014 (2014) 419
Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics 2014, Amsterdam, Netherlands, 2 - 6 Jun 2014, pp.419
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