Open AccessA large‐area CMOS imager as an X‐ray detector for synchrotron radiation experiments
Author(s) -
Yagi Naoto,
Yamamoto Masaki,
Uesugi Kentaro,
Inoue Katsuaki
Publication year - 2004
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049504008519
Subject(s) - detector , synchrotron radiation , optics , physics , frame rate , synchrotron , photonics , pixel , x ray detector , high energy x rays , cmos , radiation , optoelectronics , materials science , beam (structure) , beamline
The performance of a CMOS flatpanel imager from Hamamatsu Photonics (C7942) has been tested in various synchrotron radiation experiments. This detector has a detection area of about 120 mm × 120 mm with 0.05 mm pixels, and a frame rate of 2 s −1 . The commercially available product was insensitive to X‐rays with an energy lower than 15 keV, but slight modifications solved this problem. Images obtained in small‐angle scattering, protein crystallography and medical imaging experiments were all of high quality. The fast readout and the large area are advantageous in real‐time imaging. Although its noise level is higher than the area detectors that are currently used in synchrotron radiation experiments, it is particularly useful in experiments where other bulky detectors cannot be used. Its relatively low price (about USD 30000) makes it a unique option in the choice of detectors.