NDLI: LSO-Based Single Crystal Film Scintillator for Synchrotron-Based Hard X-Ray Micro-Imaging

Content Provider	IEEE Xplore Digital Library
Author	Martin, T. Douissard, P.-A. Couchaud, M. Cecilia, A. Baumbach, T. Dupre, K. Rack, A.
Copyright Year	1963
Abstract	X-ray detector systems are powerful tools: in combination with tomographic methods they provide volumetric data of samples in a non-destructive manner which is of high interest for, e.g., biology, medicine or materials research. The detector able to provide images with submicrometer spatial resolution frequently consists of a scintillator screen, light microscopy optics and a digital camera. Here, the scintillator converts the X-rays into a visible light image which is projected onto the camera by the light optics. In order to perform high resolution imaging Single Crystal Film (SCF) scintillators 1 mum to 30 mum thin are required due to the limited depth of focus of the microscopy optics. Thin SCFs can be obtained via liquid phase epitaxy (LPE). A drawback is that a detector working with SCFs suffers from low efficiency (2% at 50 keV) owing to their limited thickness. The detective quantum efficiency (DQE) is here mainly limited by the low absorption of X-rays and the light yield in the thin scintillator layer. Performances, i.e absorption, light yield, afterglow of operational systems at the European Synchrotron Radiation Facility (ESRF) using YAG:Ce (Y₃Al₅O₁₂:Ce), LAG:Eu (Lu₃Al₅O₁₂:Eu) and GGG:Eu (Gd₃Ga₅O₁₂:Eu) scintillators will be presented and compared to new LSO:Tb (Lu₂SiO₅:Tb) scintillators developed in the framework of an European project , . A new concept to improve the efficiency of detection in the 20 keV - 40 keV energy range with 1 mum spatial resolution will be presented. This concept based on multilayer scintillators is realised by the LPE process as well. First results will be illustrated with X-ray images and will demonstrate the absorption efficiency improvement of the X-ray detector. The expected performance is 7 times better than the LAG-based scintillators.
Sponsorship	IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD
Starting Page	1412
Ending Page	1418
Page Count	7
File Size	1777211
File Format	PDF
ISSN	00189499
Volume Number	56
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical films X-ray imaging X-ray detectors Biomedical optical imaging Electromagnetic wave absorption Spatial resolution Optical microscopy Tomography Systems biology Biomedical imaging X-ray detector LSO:Tb luminescence micro-imaging micro-tomography submicrometer resolution synchrotron instrumentation thin screen scintillator
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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