TY - JOUR
T1 - X-ray fluorescence hologram data collection with a cooled avalanche photodiode
AU - Hayashi, Kouichi
AU - Takahashi, Yukio
AU - Matsubara, Ei ichiro
AU - Kishimoto, Shunji
AU - Mori, Takeharu
AU - Tanaka, Masahiko
N1 - Funding Information:
This work was performed with the approval of the Photon Factory Program Advisory Committee (PF-PAC no. 99G207). This study was supported by Industrial Technology Research Grant Program in 2000 from the New Energy and Industrial Development Organization (NEDO) of Japan. Part of this work was financially supported by a Grant-in-Aid for Scientific Research on Priority Areas (B)(2) ‘Localized Quantum Structures’ (12130201) from the Ministry of Education, Science, Sports and Culture.
PY - 2002/11
Y1 - 2002/11
N2 - A high counting rate X-ray detector with an appropriate energy resolution is desired for high quality X-ray fluorescence hologram measurements because a holographic pattern is detected as extremely small intensity variations of X-ray fluorescence on a large intensity background. A cooled avalanche photodiode (APD), which has about 10% energy resolution and is designed for a high counting rate, fits the above requirements. Reconstructed atomic images from experimental holograms using the APD system provide us a clear view of the first and second neighbor atoms around an emitter. The present result proved that a combination of this APD system and a synchrotron X-ray source enables us to measure a high quality hologram for a reasonable measurement time.
AB - A high counting rate X-ray detector with an appropriate energy resolution is desired for high quality X-ray fluorescence hologram measurements because a holographic pattern is detected as extremely small intensity variations of X-ray fluorescence on a large intensity background. A cooled avalanche photodiode (APD), which has about 10% energy resolution and is designed for a high counting rate, fits the above requirements. Reconstructed atomic images from experimental holograms using the APD system provide us a clear view of the first and second neighbor atoms around an emitter. The present result proved that a combination of this APD system and a synchrotron X-ray source enables us to measure a high quality hologram for a reasonable measurement time.
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U2 - 10.1016/S0168-583X(02)01145-X
DO - 10.1016/S0168-583X(02)01145-X
M3 - Article
AN - SCOPUS:0036843493
SN - 0168-583X
VL - 196
SP - 180
EP - 185
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 1-2
ER -