Characterisation of HEXITECMHz- A 1 MHz continuous frame rate spectroscopic X-ray imaging detector system

被引：3

作者：

Cline, B. D. ^{[1
]}

Banks, D. ^{[1
]}

Bell, S. ^{[1
]}

Church, I. ^{[1
]}

Cross, S. ^{[1
]}

Davis, A. ^{[1
]}

Day, C. ^{[1
]}

French, M. ^{[1
]}

Gardiner, T. ^{[1
]}

Ghorbanian, N. ^{[1
]}

Harris, J. ^{[1
]}

Hart, M. ^{[1
]}

Holden, J. ^{[1
]}

Jones, L. ^{[1
]}

Lipp, J. ^{[1
]}

Nicholls, T. ^{[1
]}

Nobes, J. ^{[1
]}

Pradeep, S. ^{[1
]}

Prydderch, M. ^{[1
]}

Roberts, M. ^{[1
]}

Schneider, A. ^{[1
]}

Seller, P. ^{[1
]}

Sole, D. ^{[1
]}

Veale, M. C. ^{[1
]}

Wilson, M. D. ^{[1
]}

Helsby, W. ^{[2
]}

Dhamgaye, V. ^{[3
]}

Fox, O. ^{[3
]}

Sawhney, K. ^{[3
]}

机构：

[1] UKRI STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[2] UKRI STFC Daresbury Lab, Daresbury WA4 4AD, Warrington, England

[3] Diamond Light Source, Didcot OX11 0DE, Oxon, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2023年 / 1057卷

关键词：

Pixel detector; MHz imaging; P-type Si; Resolution; X-ray spectroscopy; X-ray imaging; PERFORMANCE; ENERGY;

D O I：

10.1016/j.nima.2023.168718

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Spectroscopic X-ray imaging techniques including Compton X-ray Imaging, X-ray Fluorescence Imaging and Hyperspectral X-ray Tomography require energy-resolving detectors capable of operating at high incident X-ray fluxes to make time resolved measurements. HEXITECMHz, operates at a continuous 1 MHz frame rate and can make fully spectroscopic measurements at >10(6) ph s(-1) mm(-2). This is enabled by an integrating Front End, in-pixel digitisation and high-speed serialisers. A 300 mu m thick p-type Si HEXITECMHz detector was characterised on the B16 Test Beamline at the Diamond Light Source and are the first measurements taken at a 1 MHz frame rate. At 10 keV and 15 keV) the device displayed average FWHM of 656 eV and 682 eV respectively, with minimal changes in spectroscopic performance over similar to 8 h. Analysis of charge-sharing events show low charge loss and a linear energy-signal response. Higher-flux measurements illustrated the capability of the ASIC to operate as a photon-counting device.

引用

页数：12

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