The large area detector for the eXTP mission

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00604785" target="_blank" >RIV/67985815:_____/24:00604785 - isvavai.cz</a>

Result on the web

<a href="https://www.spiedigitallibrary.org/search?term=10.1117%2F12.3019868" target="_blank" >https://www.spiedigitallibrary.org/search?term=10.1117%2F12.3019868</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.3019868" target="_blank" >10.1117/12.3019868</a>

Result language

angličtina

Original language name

The large area detector for the eXTP mission

Original language description

The Large Area Detector (LAD) is the high-throughput, spectral-timing instrument designed for the eXTP (enhanced Xray Timing and Polarimetry) mission, a major project of the Chinese Academy of Sciences and China National Space Administration. The eXTP science case involves the study of matter under extreme conditions of gravity, density and magnetism. The eXTP mission is currently performing a phase B study, expected to be completed by the end of 2024. The target launch date is end-2029. Until recently, the eXTP scientific payload included four instruments (Spectroscopy Focusing Array, Polarimetry Focusing Array, Large Area Detector and Wide Field Monitor) offering unprecedented simultaneous wide-band X-ray timing and polarimetry sensitivity. The mission designed was however rescoped in early 2024 to meet the programmatic requirements of a final mission adoption in the context of the Chinese Academy of Sciences. Negotiations are still ongoing at agency level to assess the feasibility of a European participation to the payload implementation, by providing the LAD and WFM instruments, through a European Consortium composed of institutes from Italy, Spain, Austria, Czech Republic, Denmark, France, Germany, Netherlands, Poland, Switzerland and Turkey. At the time of writing, the LAD instrument is thus a scientific payload proposed for inclusion on eXTP. The LAD instrument for eXTP is based on the design originally proposed for the LOFT mission within the ESA-M3 context. The eXTP/LAD envisages a deployed >3 m2 effective area in the 2-30 keV energy range, achieved through the technology of the large-area Silicon Drift Detectors - offering a spectral resolution of up to 200 eV FWHM at 6 keV and of capillary plate collimators - limiting the field of view to about 1 degree. In this paper we provide an overview of the LAD instrument design and the status of its maturity when approaching nearly the end of its phase B study.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of SPIE - the International Society for Optical Engineering

ISBN

978-1-5106-7509-4

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

15

Pages from-to

130931X

Publisher name

The Society of Photo-Optical Instrumentation Engineers (SPIE)

Place of publication

Bellingham

Event location

Yokohama

Event date

Jun 16, 2024

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

001338129600050