Examinations Of Detector Systems For High Photon Rates In The Ultrasoft X-Ray Region

Peter Guttmann

doi:10.1117/12.964952

1 January 1986 Examinations Of Detector Systems For High Photon Rates In The Ultrasoft X-Ray Region

Peter Guttmann

Proceedings Volume 0733, Soft X-Ray Optics and Technology; (1986) https://doi.org/10.1117/12.964952
Event: Soft X-Ray Optics and Technology, 1987, Berlin, Germany

Abstract

For biological and medical examinations ultrasoft x-rays in the wavelength range of 2.3 nm up to 4.5 nm are well suited. To get good images of objects with low contrast such as biological specimens a high signal to noise ratio is, required. As example in a scanning x-ray microscope high photon rates with more than 10° photons/s in the scanning spot are needed. The radiation dose of the specimens should be as small as possible. For that reason the Gottingen scanning x-ray microscope working at BESSY is best suited. To use for the image formation as much photons as possible it is necessary to build up a detector system with a high detective quantum efficiency (DQE) and with the possibility to process high photon rates. In form of a short review the advantages and disadvantages of detector systems for ultrasoft x-rays are described. Detailled examinations of a photon counting detector system with a proportional counter are described. Results of detector systems with two different diodes - one passivated ion-implanted silicon junction diode and one GaAsP-Schottky diode are given. New results with an integrating GaAsP-Schottky diode detector system will be presented.

Citation Download Citation

Peter Guttmann "Examinations Of Detector Systems For High Photon Rates In The Ultrasoft X-Ray Region", Proc. SPIE 0733, Soft X-Ray Optics and Technology, (1 January 1986); https://doi.org/10.1117/12.964952

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