High-accuracy X-ray detector calibration at PTB

Michael K. Krumrey; Frank Scholze

doi:10.1117/12.550467

29 September 2004 High-accuracy x-ray detector calibration at PTB

Michael K. Krumrey, Frank Scholze

Proceedings Volume 5501, High-Energy Detectors in Astronomy; (2004) https://doi.org/10.1117/12.550467
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Many experiments in X-ray astronomy require absolutely calibrated detectors. Calibrations can be performed in the Radiometry Laboratory of the Physikalisch-Technische Bundesanstalt (PTB) at the electron storage ring BESSY II in Berlin. This synchrotron radiation source can be operated as primary source standard, providing a calculable spectral photon flux for the calibration of energy-dispersive detectors like Si(Li), HPGe or cryogenic STJ detectors. All detectors including non energy-dispersive devices like semiconductor photodiodes can be calibrated with monochromatized synchrotron radiation of high spectral purity against a primary detector standard, mainly a cryogenic electrical substitution radiometer, in the photon energy range from the UV up to about 60 keV with relative uncertainties of 1% or less. By using pencil beams, the homogeneity of the detector responsivity and the response function can be investigated, also for pixel detectors.

Citation Download Citation

Michael K. Krumrey and Frank Scholze "High-accuracy x-ray detector calibration at PTB", Proc. SPIE 5501, High-Energy Detectors in Astronomy, (29 September 2004); https://doi.org/10.1117/12.550467

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