Characterization of Pixirad-1 photon counting detector for X-ray imaging

被引：40

作者：

Delogu, P. ^{[1
,2
]}

Oliva, P. ^{[3
,4
]}

Bellazzini, R. ^{[2
,5
]}

Brez, A. ^{[2
,5
]}

de Ruvo, P. L. ^{[2
,5
]}

Minuti, M. ^{[2
,5
]}

Pinchera, M. ^{[2
,5
]}

Spandre, G. ^{[2
,5
]}

Vincenzi, A. ^{[2
,5
]}

机构：

[1] Univ Pisa, Dept Phys E Fermi, L Bruno Pontecorvo 3, I-56127 Pisa, Italy

[2] Ist Nazl Fis Nucl, Sez Pisa, L Bruno Pontecorvo 3, I-56127 Pisa, Italy

[3] Univ Sassari, Dept Chem & Pharm, Via Vienna 2, I-07100 Sassari, Italy

[4] Ist Nazl Fis Nucl, Sez Cagliari, SP Sestu Km 0-70009042, Cagliari, Italy

[5] Pixirad Imaging Counters Srl, L Bruno Pontecorvo 3, I-56127 Pisa, Italy

来源：

JOURNAL OF INSTRUMENTATION | 2016年 / 11卷

关键词：

X-ray detectors; Large detector-systems performance; Pixelated detectors and associated VLSI electronics; X-ray radiography and digital radiography (DR);

D O I：

10.1088/1748-0221/11/01/P01015

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The aim of this work is the characterization of the Pixirad-1 detector system with monochromatic synchrotron radiation at different energies. The linearity of the system has been investigated varying the impinging photon flux up to paralyzation. The ratio between detector counts and number of impinging photons, as a function of energy and discriminator thresholds, has been measured. The pixel noise has been evaluated and the result compared with the theoretical Poisson model. Eventually, the spatial resolution has been evaluated by measuring the line-spread function at different energies and discriminator thresholds.

引用

页数：13

共 8 条

[1] PIXIE III: a very large area photon-counting CMOS pixel ASIC for sharp X-ray spectral imaging [J].