A Large Area Detector proposed for the Large Observatory for X-ray Timing (LOFT)

  • Behalf of the LOFT Consortium

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

21 Scopus citations

Abstract

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 m2-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 m2 (@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.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2012
Subtitle of host publicationUltraviolet to Gamma Ray
PublisherSPIE
ISBN (Print)9780819491442
DOIs
StatePublished - 2012
EventSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam, Netherlands
Duration: Jul 1 2012Jul 6 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8443
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Country/TerritoryNetherlands
CityAmsterdam
Period07/1/1207/6/12

Keywords

  • Compact objects
  • X-ray Timing

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