Radiation-hard optical link for SLHC Gan, K K; Abi, B; Fernando, W ...
Journal of physics. Conference series,
05/2008, Volume:
110, Issue:
9
Journal Article
Peer reviewed
Open access
We study the feasibility of fabricating an optical link for the SLHC ATLAS silicon tracker based on the current pixel optical link architecture. The electrical signals between the current pixel ...modules and the optical modules are transmitted via micro-twisted cables. The optical signals between the optical modules and the data acquisition system are transmitted via rad-hard SIMM fibres spliced to rad-tolerant GRIN fibres. The link has several nice features. We have measured the bandwidths of the micro twisted-pair cables to be ∽ 1 Gb/s and the fusion spliced fibre ribbon to be ∽ 2 Gb/s. We have irradiated PIN and VCSEL arrays with 24 GeV protons and find the arrays survive to the SLHC dosage. We have also demonstrated the feasibility of fabricating a novel opto-pack for housing VCSEL and PIN arrays with BeO as the substrate.
Flex circuits for the ATLAS pixel detector Skubic, P.; Boyd, G.; Krishnama, S. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
06/2001, Volume:
465, Issue:
1
Journal Article
Peer reviewed
Recent progress on designs of flexible circuits for the ATLAS pixel detector will be discussed. Thin flexible circuits can be used to provide power and signal connections between front-end (FE) ...readout chips and data acquisition chips on the pixel detector module. Fabrication of a prototype design has been completed and test beam measurements with a 16 FE chip flex module gave an efficiency of 98.4% and a position resolution of
13.8
μm
for clusters consisting of one or two pixels.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
The CLEO III silicon vertex detector Kass, R.; Alam, M.S.; Alexander, J.P. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
03/2003, Volume:
501, Issue:
1
Journal Article
Peer reviewed
The design and operation of the CLEO III silicon vertex detector is described in this report. This detector consists of four layers of double-sided silicon wafers covering 93% of the solid angle. ...After initially meeting its signal-to-noise and spatial resolution design goals, the
r−
φ side efficiency of layers 1 and 2 decreased dramatically due to radiation-induced sensor effects.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
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CMK, CTK, FMFMET, IJS, NUK, PNG, UM
7.
Status of the CLEO III silicon tracker von Toerne, E.; Alam, M.S.; Alexander, J.P. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
09/2003, Volume:
511, Issue:
1
Journal Article
Peer reviewed
The CLEO-III silicon vertex detector is a 4-layer device with double-sided silicon sensors arranged in a barrel design, covering 93% of the solid angle. After initially meeting its design goals of ...signal-to-noise performance and spatial resolution, the signal efficiency deteriorated on the rφ sensor side in the two innermost layers due to radiation induced sensor effects. Operation of the two outermost layers and the
z-coordinate readout in all layers is stable.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
8.
Design and initial performance of the CLEO III silicon tracker von Toerne, E; Alam, M.S; Alexander, J.P ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
11/2001, Volume:
473, Issue:
1
Journal Article
Peer reviewed
CLEO III is the new experimental phase of the CLEO experiment at the CESR accelerator. Both the accelerator and the detector have recently been upgraded. A new charged particle tracking system with ...the addition of a ring imaging Cherenkov particle identification system has been installed. A major part of the tracking system upgrade was the construction of a new four-layer double-sided silicon tracker with 93% solid angle coverage and new readout electronics. The CLEO III upgrade was completed in February 2000 with the installation of the silicon detector. CLEO III has finished the commissioning phase and is now taking data. The design of the detector and first performance results are presented here.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
We measure the cross section and the difference in rapidities between photons and charged leptons for inclusive W({yields}l{nu})+{gamma} production in e{gamma} and {mu}{gamma} final states. Using ...data corresponding to an integrated luminosity of 4.2 fb{sup -1} collected with the D0 detector at the Fermilab Tevatron Collider, the measured cross section times branching fraction for the process pp{yields}W{gamma}+X{yields}l{nu}{gamma}+X and the distribution of the charge-signed photon-lepton rapidity difference are found to be in agreement with the standard model. These results provide the most stringent limits on anomalous WW{gamma} couplings for data from hadron colliders: -0.4<{Delta}{kappa}{sub {gamma}<}0.4 and -0.08<{lambda}{sub {gamma}<}0.07 at the 95% C.L.
Full text
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CMK, CTK, FMFMET, IJS, NUK, PNG, UM
Radiation-hard optical link for SLHC Gan, K.K.; Fernando, W.; Kagan, H. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
10/2008, Volume:
596, Issue:
1
Journal Article
Peer reviewed
Open access
We study the feasibility of fabricating an optical link for the SLHC ATLAS silicon tracker based on the current pixel optical link architecture. The electrical signals between the current pixel ...modules and the optical modules are transmitted via micro-twisted cables. The optical signals between the optical modules and the data acquisition system are transmitted via radiation-hard/low-bandwidth SIMM fibres fusion spliced to radiation-tolerant/medium-bandwidth GRIN fibres. The link has several nice features. We have measured the bandwidths of the micro-twisted-pair cables to be ∼1
Gb/s and the fusion spliced fibre ribbon to be ∼2
Gb/s. We have irradiated PIN and VCSEL arrays with 24
GeV protons and find the arrays can operate up to the SLHC dosage. We have also demonstrated the feasibility of fabricating a novel opto-pack for housing VCSEL and PIN arrays with BeO as the substrate.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
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