Large area silicon drift detector for the ALICE experiment

Rashevsky, A.; Bonvicini, V.; Burger, P.; Piano, S.; Piemonte, C.; Vacchi, A.

doi:10.1016/s0168-9002(02)00531-4

Cited by 48 publications

(25 citation statements)

References 12 publications

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“…The primary enabling technology for the LAD is the large-area Silicon Drift Detectors (SDDs) based on the heritage of the detectors developed for the Inner Tracking System (ITS) in the ALICE experiment of the Large Hadron Collider (LHC) at CERN, by INFN Trieste, Italy -in co-operation with Canberra Inc. [23,30]. The LAD detector design is indeed an optimization of the ALICE detector: 6-inch, 450 µm thick wafers will be used to produce 76 cm 2 monolithic SDDs (108.52 mm×70.00 mm active area).…”

Section: The Detectormentioning

confidence: 99%

The Large Observatory for X-ray Timing (LOFT)

et al. 2011

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M. Feroci et al.Abstract High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultradense matter and to black hole masses and spins. A 10 m 2 -class instrument in combination with good spectral resolution is required to exploit the relevant diagnostics and answer two of the fundamental questions of the European Space Agency (ESA) Cosmic Vision Theme "Matter under extreme conditions", namely: does matter orbiting close to the event horizon follow the predictions of general relativity? What is the equation of state of matter in neutron stars? The Large Observatory For X-ray Timing (LOFT), selected by ESA as one of the four Cosmic Vision M3 candidate missions to undergo an assessment phase, will revolutionise the study of collapsed objects in our galaxy and of the brightest supermassive black holes in active galactic nuclei. Thanks to an innovative design and the development of large-area monolithic silicon drift detectors, the Large Area Detector (LAD) on board LOFT will achieve an effective area of ∼12 m 2 (more than an order of magnitude larger than any spaceborne predecessor) in the 2-30 keV range (up to 50 keV in expanded mode), yet still fits a conventional platform and small/medium-class launcher. With this large area and a spectral resolution of <260 eV, LOFT will yield unprecedented information on strongly curved spacetimes and matter under extreme conditions of pressure and magnetic field strength.

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Section: The Detectormentioning

confidence: 99%

The Large Observatory for X-ray Timing (LOFT)

et al. 2011

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“…The large-area SDDs were originally developed [11,12] The working principle of such detectors, described in detail in Rachevsky et al [13], is as follows. An X-ray photon is absorbed in the Silicon bulk by photo-electric effect and generates a charge cloud which drifts to the collecting anodes due to an electric field, sustained by a voltage drop of 1300V from the median plane to the edges.…”

Section: The Large Area Detectormentioning

confidence: 99%

The Large Observatory for x-ray timing

et al. 2014

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The Large Observatory For x-ray Timing (LOFT) was studied within ESA M3 Cosmic Vision framework and participated in the final downselection for a launch slot in 2022-2024. Thanks to the unprecedented combination of effective area and spectral resolution of its main instrument, LOFT will study the behaviour of matter under extreme conditions, such as the strong gravitational field in the innermost regions of accretion flows close to black holes and neutron stars, and the supranuclear densities in the interior of neutron stars. The science payload is based on a Large Area Detector (LAD, 10 m2 effective area, 2-30 keV, 240 eV spectral resolution, 1° collimated field of view) and a Wide Field Monitor (WFM, 2-50 keV, 4 steradian field of view, 1 arcmin source location accuracy, 300 eV spectral resolution). The WFM is equipped with an on-board system for bright events (e.g. GRB) localization. The trigger time and position of these events are broadcast to the ground within 30 s from discovery. In this paper we present the status of the mission at the end of its Phase A study

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“…These were originally developed for the Inner Tracking System (ITS) in the ALICE experiment of the Large Hadron Collider (LHC) at CERN, by one of the scientific institutes in the LOFT Consortium, the INFN Trieste, Italy, in co-operation with Canberra Inc. 2,3,6 . The key properties of the SDDs are their capability to read-out a large photon collecting area with a small set of lowcapacitance (thus low-noise) anodes and their very small weight (∼ 1 kg m -2 ) 7 .…”

Section: The Silicon Drift Detectorsmentioning

confidence: 99%

A large area detector proposed for the Large Observatory for X-ray Timing (LOFT)

Zane¹,

Walton²,

Kennedy³

et al. 2012

SPIE Proceedings

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The Large Observatory for X-ray Timing (LOFT) is one of the four candidate ESA M3 missions considered for launch in the 2022 timeframe. It is specifically designed to perform fast X-ray timing and probe the status of the matter near black holes and neutron stars. The LOFT scientific payload is composed of a Large Area Detector (LAD) and a Wide Field Monitor (WFM). The LAD is a 10 m 2 -class pointed instrument with 20 times the collecting area of the best past timing missions (such as RXTE) over the 2-30 keV range, which holds the capability to revolutionize studies of X-ray variability down to the millisecond time scales. Its ground-breaking characteristic is a low mass per unit surface, enabling an effective area of ~10 m 2 (@10 keV) at a reasonable weight. The development of such large but light experiment, with low mass and power per unit area, is now made possible by the recent advancements in the field of large-area silicon detectors -able to time tag an X-ray photon with an accuracy <10 μs and an energy resolution of ~260 eV at 6 keV -and capillary-plate X-ray collimators. In this paper, we will summarize the characteristics of the LAD instrument and give an overview of its capabilities.

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Large area silicon drift detector for the ALICE experiment

Cited by 48 publications

References 12 publications

The Large Observatory for X-ray Timing (LOFT)

The Large Observatory for X-ray Timing (LOFT)

The Large Observatory for x-ray timing

A large area detector proposed for the Large Observatory for X-ray Timing (LOFT)

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