FPIX is an X-ray deector using 64 chqnnel Si-APD(avalanche photodiode) linear arry.

Purpose and Vision

1. Ultra-fast signal processing : Sub-nanosecond width pulse & 10-GHz waveform sampling


2. Signal read-out for >103 pixels: Ultra-fast analog memory & Low Temperature Co-fired Ceramics board

3. Fast-response X-ray detector: Si-APD linear array detector (ramdaT:100 ps)& two-dimensional detector with stacking the linear arrays.




A new circuit board for 64 channel Si-APD linear array detector was developed for us the 1 nano sec time-resolved X-ray experimants.

The circuit board consisted of an ultra-fast frontend application-specific integrated circuit (0.8-μm BiCMOS process), field-programmed gate array (Xilinx Spartan6), and hardware-based transmission control protocol processor for Gigabit Ethernet (SiTCP). We tested the performance of the multi-scaling measurements using the detector system at the Photon Factory beam line BL-14A.

Related WEB site

DTP "FPIX" project http://rd.kek.jp/project/fpix/index_j.html
IMSS http://pfwww.kek.jp/KeisokuSystem/index.html
Open source consortium of instruction(OSC) http://www-osc.kek.jp/Plone/osc/

Related research group

KEK-IMSS PF BL-14A: http://pfwww.kek.jp/users_info/station_spec/bl14/bl14a.html
KEK-IMSS PF-AR AR-NW14A: http://pfwww.kek.jp/adachis/NW14/NW14.htm
SPring-8 BL11XU: http://www.spring8.or.jp/wkg/BL11XU/instrument/lang/INS-0000001388/instrument_summary_view

Related facility

KEK PF http://pfwww.kek.jp/indexj.html
SPring-8 http://www.spring8.or.jp/ja/