A new design for the gas pixel detector

Fabio Muleri; Ronaldo Bellazzini; Alessandro Brez; Enrico Costa; Sergio Fabiani; Massimo Minuti; Michele Pinchera; Alda Rubini; Paolo Soffitta; Gloria Spandre

doi:10.1117/12.926006

25 September 2012 A new design for the gas pixel detector

Fabio Muleri, Ronaldo Bellazzini, Alessandro Brez, Enrico Costa, Sergio Fabiani, Massimo Minuti, Michele Pinchera, Alda Rubini, Paolo Soffitta, Gloria Spandre

Author Affiliations +

Proceedings Volume 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray; 84430L (2012) https://doi.org/10.1117/12.926006
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The Gas Pixel Detector, developed and continuously improved by Pisa INFN in collaboration with INAF-IAPS, can visualize the tracks produced within a low Z gas by photoelectrons of few keV. By reconstructing the impact point and the original direction of the photoelectrons, the GPD can measure the linear polarization of X-rays, while preserving the information on the absorption point, the energy and the time of arrival of individual photons. The Gas Pixel Detector filled with He-DME mixture at 1 bar is sensitive in the 2-10 keV energy range and this configuration has been the basis of a number of mission proposals, such as POLARIX or XPOL on-board XEUS/IXO, or the X-ray Imaging Polarimetry Explorer (XIPE) submitted in response to ESA small mission call in 2012. We have recently improved the design by modifying the geometry of the absorption cell to minimize any systematic effect which could leave a residual polarization signal for non polarized source. We report on the testing of this new concept with preliminary results on the new design performance.

Citation Download Citation

Fabio Muleri, Ronaldo Bellazzini, Alessandro Brez, Enrico Costa, Sergio Fabiani, Massimo Minuti, Michele Pinchera, Alda Rubini, Paolo Soffitta, and Gloria Spandre "A new design for the gas pixel detector", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84430L (25 September 2012); https://doi.org/10.1117/12.926006

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available