SPring-8 — 大型放射光施設

MPCCD

　X線パルスの2次元信号を取得するX線イメージング検出器として、Multiport CCD (MPCCD) 検出器が利用可能です。

基本性能

Sensor type	MPCCD Phase Ib	MPCCD Phase III/III-L
特徴	標準センサー	標準センサーと比較し [ Phase III ] ● 高QE、大PSF [ Phase III-L ] ● 高QE、大PSF ● 低ピーク信号・低ノイズ
センサー構造	50 μm-thick Epitaxial silicon, Front illumination	300 μm-thick Bulk silicon, Back illumination
フレームレート	60 fps	30 fps
イメージフォーマット	512 x 1024, 50 μm pixels	512 x 1024, 50 μm pixels
イメージエリア	51.2 x 25.6 mm ²	51.2 x 25.6 mm ²
ピーク信号	3.8 x 10 ⁶ electrons = 2310 photons @6keV	[ Phase III ] 3.2 x 10 ⁶ electrons = 1950 photons @6keV [ Phase III-L ] 1.7 x 10 ⁶ electrons = 1030 photons @6keV
システムノイズ	110 ~ 180 electrons = 0.07 ~ 0.11 photons @6keV	[ Phase III ] 130~230 electrons = 0.08~0.14 photons @6keV [ Phase III-L ] 130~230 electrons = 0.02~0.03 photons @6keV
リニアリティエラー	~1 % max.	~1 % max.
ポート間クロストーク	50 ppm (after calibration)	50 ppm (after calibration)
背景ドリフト (12 hours)	< 90 electrons = 0.05 photons @ 6keV	< 45 electrons = 0.03 photons @ 6keV
パラレル転送アンダーシュート	< 0.01 %	< 0.4 %
シリアル転送アンダーシュート	0.2 % max.	0.3 % max.
Point spread function	3.3 μm @ 12 keV 830 photons injection	13.9 μm @ 12 keV 1030 photons injection

Table 1. Performance of MPCCD sensor system

Figure 1. MPCCD quantum efficiency

ー　Figure 1. MPCCD quantum efficiency

MPCCD搭載カメラには以下の種類があり、用途に応じて使い分けることができます。

　A multiport CCD (MPCDD) detector is available as an X-ray imaging detector that can acquire two-dimensional signals from X-ray pulses.

Basic performance

Sensor type	MPCCD Phase Ib	MPCCD Phase III/III-L
Features	Standard sensors	Compared to standard sensors [ Phase III ] ● High QE, Large PSF [ Phase III-L ] ● High QE, Large PSF ● Low peak signal / Low noise
Sensor structure	50 μm-thick Epitaxial silicon, Front illumination	300 μm-thick Bulk silicon, Back illumination
Frame rate	60 fps	30 fps
Image format	512 x 1024, 50 μm pixels	512 x 1024, 50 μm pixels
Image area	51.2 x 25.6 mm ²	51.2 x 25.6 mm ²
Peak signal	3.8 x 10 ⁶ electrons = 2310 photons @6keV	[ Phase III ] 3.2 x 10 ⁶ electrons = 1950 photons @6keV [ Phase III-L ] 1.7 x 10 ⁶ electrons = 1030 photons @6keV
System noise	110 ~ 180 electrons = 0.07 ~ 0.11 photons @6keV	[ Phase III ] 130~230 electrons = 0.08~0.14 photons @6keV [ Phase III-L ] 130~230 electrons = 0.02~0.03 photons @6keV
Linearity error	~1 % max.	~1 % max.
Cross talk between ports	50 ppm (after calibration)	50 ppm (after calibration)
Background drift (12 hours)	< 90 electrons = 0.05 photons @ 6keV	< 45 electrons = 0.03 photons @ 6keV
Parallel transfer under shoot	< 0.01 %	< 0.4 %
Serial transfer under shoot	0.2 % max.	0.3 % max.
Point spread function	3.3 μm @ 12 keV 830 photons injection	13.9 μm @ 12 keV 1030 photons injection

Table 1. Performance of MPCCD sensor system

Figure 1. MPCCD quantum efficiency

ー　Figure 1. MPCCD quantum efficiency

The following types of built-in MPCCD cameras can be selected depending on the requirements.