WP 3

SYMPOSIUM ON APPLICATION OF LINEAR AND AREA DETECTORS FOR X-RAY AND NEUTRON DIFFRACTION AND SPECTROSCOPY

 

E-MRS Fall Meting

Symposium D

on

Applications of Linear and Area Detectors for X-ray and Neutron Diffraction and Spectroscopy

There is a permanently growing need of studying the properties of materials and devices in a small spatio-temporal scale and with good energy resolution. Studies of such kind became possible owing to development of modern position sensitive (PSD) detectors installed at classical and synchrotron radiation as well as neutron sources. Unique properties of linear and area detectors permit for collecting data with speed and quality much better in respect to any classical detector, making that many applications in materials science, physics, chemistry, crystallography, geology, medicine, biology and astrophysics have been found. The continued progress in development of such detectors leads to improvement of existing materials-characterisation methods and to creation of new ones. In connection with development of intense radiation sources, the in-situ time-resolved studies of phase transitions, the chemical reactions and other fast processes deciding about the material properties, can be studied. The observed progress would not be possible without work of scientist and technologists on detector materials, on physical principles of the detection processes, on fast low-noise electronics and hardware/software systems permitting collection and processing of huge amount of data. The scope of the symposium will cover the detectors used for detection of X-rays and neutrons in the domains of diffraction and spectroscopy methods of studies of materials properties: crystal structure, ordering, defects and electronic structure. Emphasis will be put on the detecting tools applicable with synchrotron radiation sources, as justified by fast development of these sources.

Motivation:

The meeting is thought to be especially valuable because of an opportunity given for users of such detectors to meet with those working on physics of detection process, with detectors producers and with authors of software. Exchanging ideas within this broad community is thought to be fruitful for future studies in materials science, where the use of PSD detectors is permanently growing.

 

Objectives:

The aim of the Symposium is to give an overview of the currently used LADs, their construction, methods of data processing as well as to inform about fields of their application. It will cover the detectors used for detection of X-rays and neutrons in diffraction and spectroscopy methods of studies of materials properties: crystal structure, atomic ordering, defects and electronic structure. In particular, the Symposium will:

Present a large variety of applications of linear and area detectors in materials science in studies involving X-ray and neutron diffraction and spectroscopy,

Present applications of position sensitive detectors as tools for studies of condensed matter, biological and medical materials,

Discuss and compare the classical and new materials used for detector construction,

Identify and discuss how to overcome technological and scientific barriers in this field,

Discuss the current physical limits of detector construction influencing their energy and spatial resolution, noise, counting rate and efficiency,

Present and review the recent advances and future limits in the development of linear and area detectors

Provide a common forum for discussion what the materials science can do for detector development and how the progress in detectors technology influences the materials science.

 

Main topics:

 

Detector design:

- physics of detector design,

- fast scintillators,

- state-of-the-art area and linear detectors for X-ray and neutron detection,

- ultrafast x-ray detectors and imaging systems,

- new trends, new concepts, new detector materials,

- future developments and perspectives.

 

Data collection and analysis:

- image analysis,

- data reduction,

- advanced software for data processing.

 

Applications of X-ray and neutron position sensitive detectors:

- in powder, single-crystal and thin-film diffraction studies,

- in high-pressure crystallography,

- in protein crystallography,

- in neutron and soft/hard X-ray spectroscopy,

- for nuclear resonant scattering,

- in time-resolved studies of materials processing, crystal growth etc.,

- in determination of crystal structure, local structure and defect structure,

- in materials science (phase transitions, stress studies, defectoscopy),

- in structural biology,

- for imaging spectrometry in space

 

Imaging:

- in X-ray microscopy and related techniques (holography, tomography, nanotomography),

- of structure and strain of textured materials,

- for medical applications.

 

Scientific Committee:

A. Burian, University of Silesia, Katowice, Poland,

F. Beckmann, Institute for Materials Research, GKSS-Res. Center, Hamburg, Germany

R.J. Cernik, Daresbury Laboratory, Daresbury, U.K.,

W. D¹browski, AGH University of Science and Technology, Cracow, Poland,

D.L. Ederer, OBES, Washington, USA

H. Fuess, DTU Darmstadt, Germany,

J.H. Je, Pohang Univ. of Science & Technoloogy, South Korea

M.M. Kocsis, ESRF, Grenoble, France,

W. Minor, University of Virginia, Charlottesville, USA,

R.J. Nelmes, University of Edinburgh, Scotland,

A. Pietraszko, Institute of Low Temperature & Structural Research, Wroc³aw, Poland,

R. Przenios³o, Warsaw University, Warsaw, Poland,

P.A. Rodnyi, St. Petersburg State Polytechnical University, St. Petersburg, Russia,

A.J. Wojtowicz, N. Copernicus Univ., Toruñ, Poland.

Organisers

Symposium is organised by:

Wojciech PASZKOWICZ, Institute of Physics, Polish Academy of Sciences

Jürgen HÄRTWIG, European Synchrotron Radiation Facility, Experiments Division

Krystyna LAWNICZAK-JABLONSKA, Institute of Physics, Polish Academy of Sciences

Paul SIFFERT, CNRS Laboratoire de Physique et Applications de Semiconducteurs (PHASE)

Thomas WROBLEWSKI, DESY, HASYLAB

Andrzej ZIÊBA, AGH University of Science and Technology Faculty of Physics and Nuclear Techniques

 

 

Lecturers invited within the European Program of the

CEPHEUS CENTRE OF EXCELLENCE

 

 

No.

 

Speaker

 

Title of invited lecture

1

Dr Frantisek Dubecky

Slovak Academy of Sciences, Bratislava, Slovakia

“Digital portable X-ray scanner working in quantum regime based on bulk ubdoped semi-insulating GaAs radiation detectors”

2

Dr Michael

FiederleUniversity of Freiburg, Freiburg, Germany

“Materials for semiconductor detectors:CdTe and CdZnTe

3

Dr Giuseppe Bertuccio

Politecnico di Milano, Milano, Italy

“GaAs and SiC based position sensitive radiation detectors”

4

Dr Burckhard Gebauer

Hahn Meitner Institute, Berlin, Germany

„Towards high-rate and high-resolution time-of-flight area detectors for spallation neutron sources like ESS”

 

5

Dr Heinz Graafsma

ESRF, Grenoble, France

“Area detectors for synchrotron radiation detection – applications in crystallography”

6

Dr Andy P. Hammersley

ESRF, Grenoble, France

“Using FIT2D software for data analysis”

7

Dr Alex C. Hannon

Rutherford Appleton Laboratory, Oxon, U.K.

”Recent results on disordered materials from the GEneral Materials Diffractometer, GEM, at ISIS”

8

Dr Erik H.M. Heijne

CERNN, France, CCE

“Past and present of semiconductor detectors”

9

Dr Hans Krueger

University Bonn, Bonn,Germany

“2D detectors for particle physics and for imaging applications”

10

Dr Andrea Lausi

Sincrotrone Trieste, Trieste,Italy

“X-ray holography using area detectors”

11

Dr Gerhard Lutz

Max-Planck Institute of Physics, Munich, Germany

“ Semiconductor detectors for X-ray imaging spectrometry in space”

12

Dr Jean-Pierre Ponpon

CNRS, Strasbourg, France

“X-ray imaging using 2D semiconductor detectors”

13

Dr Giuseppe Salvini

Daresbury Lab. Warrington. UK

“Detectors for EDE experiments”

14

Dr Michael Schlapp

Darmstadt University of Technology, Darmstadt, Germany

“Novel materials and concepts for Neutron Image Plates”

15

Dr John Morse,

ESRF, France

“Recent developments in 3D and active edge silicon detectors”

16

Dr Rodrigo Martins

FCT-UNL, Capriacia, Portugal

“3D position sensitive detectors for pattern recognition applications”

17

Dr Jasper Plaisier

Leiden University, Leiden, Netherlands

“Application of state-of-the-art 2D detectors in structural biology”

18

Dr Jurgen Giersch

ErlangenUniversity, Germany

“Medical quantum X-ray imaging with 2D detectors”

 

 

Proceedings

Proceedings of the Symposium will be published in Nuclear Instruments and Methods in Physics, Section A.

 

Report

 

Symposium "Applications of Linear and Area Detectors for X-ray and Neutron Diffraction and Spectroscopy" was organised, as a part o f Centre of Excellce CEPHEUS, in the frame of E-MRS Fall Meeting, Warsaw 2004.

 

EXTENSION OF KNOWLEDGE

The meeting was successful as a forum where the materials scientists and detector scientists could meet and discuss what the materials science can do for detector development and how the progress in detector technology influences the materials science.

 

JOINING THE RESEARCHERS EXPERIENCE IN EXPERIMENTS AND COMPUTER DATA ANALYSIS

An opportunity was given for users of such detectors to meet with those working on physics of detection process, with detectors producers and with authors of software. Exchanging ideas within this broad community is thought to be fruitful for future studies in materials science, where the use of position sensitive detectors (PSDs) is permanently growing. 

The Symposium started with opening address by K. Lawniczak Jablonska and W. Paszkowicz. The Symposium gave an overview of currently used PSDs, their construction, methods of data processing and provided information about various fields of their application. It covered the detectors used for detection of X-rays and neutrons in diffraction and spectroscopy methods of studies of materials properties: crystal structure, atomic ordering, defects and electronic structure. It demonstrated a large variety of applications of linear and area detectors in materials science in studies involving X-rays and neutrons in the domain of condensed matter, biological and medical materials, enabled to compare the classical and new materials used for detector construction. The participants could learn about the ways of overcoming technological and scientific barriers in detector construction, and about the current physical limits of detector work influencing their energy and spatial resolution, noise, counting rate and efficiency. Recent advances and future limits in the development of linear and area detectors were presented.

The programme was divided into 13 thematic sessions composed from two or three lectures each:

Session 1 Advanced detectors - general,

Session 2 Imaging: towards micro and nano scale,

Session 3 New materials and concepts for position sensitive detectors, new applications,

Session 4 Advanced detectors for imaging and diffraction applications,

Session 5 2D data analysis; applications of area detectors in science and industry,

Session 6 Position sensitive detectors: biological applications and connections,

Session 7 1D and 2D detectors: application in X-ray diffraction and absorption studies,

Session 8 Modern materials for advanced detectors & modern detectors for advanced materials,

Session 9 New developments in detector science,

Session 10 Applications of 1D/2D detectors in particle physics, astrophysics and medicine,

Session 11 Recent and future developments in detector technology,

Session 12 Position sensitive detectors at large scale facilities,

Session 13 Position sensitive detectors: applications for modern materials,

The first lecture was a review concerning the past and present of semiconductor detectors (E. Heijne, Holland). The sessions devoted to detector construction involved the recent developments in this field. X-ray (S. Naday, S. Friedrich, both from USA, G. Salvini, UK, R. Kampmann, Germany, J. Morse, France, E. Eikenberry, Switzerland) and neutron (B. Gebauer, M. Schlapp, R. Kampmann, all from Germany, A. Hannon, UK). A number of lectures were devoted to specific applications: to crystallography (holography, i.e. visualisation of crystal structure - A. Lausi), to imaging (T. Baumbach, J. Giersch, both from Germany, Y. Hwu, Taiwan, M. Stampanoni, Switzerland, J.P. Ponpon, France), pattern recognition (R. Martins, Portugal), to biology (Z. Otwinowski, USA, J. Plaisier, The Netherlands), materials for detectors (M. Fiederle, J. Zimmermann, both from Germany, G. Bertucccio, Italy, F. Dubecky, Slovakia). Some lectures enabled understanding the problems connected with position-sensitive-detector application in methodologically related fields: astrophysics (G. Lutz, Germany), particle physics (H. Krueger). One lecture was devoted to connection of detector construction with Nature (J.B. Pelka), another one was devoted to the software used for data analysis. The mentioned session on applications outside the materials science was aimed as that stimulating new developments. During the panel discussion, the participants considered the future of detector construction, their properties (resolution, efficiency) as well as the subjects of application. The symposium ended with closing address by A. Zieba and E. Eikenberry.

PARTICIPANTS, COUNTRIES

The Symposium had about 60 participants, mainly from European countries, some came from USA and one from Taiwan.

POSTERS AND CONTRIBUTED PRESENTATIONS

7 short oral communications and 27 posters proposed by the participants were accepted for presentation. 

PLENARY, ROUND TABLE - PERSONAL CONTACTS

The meeting included 26 invited lecturers (16 financed by CEPHEUS and 10 lecturers financed by their own institutions), and one panel discussion. All lectures were proposed and organised by the scientific and organising committees, respectively.

PUBLICATION

The Proceedings of the Symposium are in preparation. They will be published in Nuclear Instruments and Methods A, a journal which typically publishes papers from symposia devoted to detector science and technology. As planned, the proceedings volume will include about 25 papers submitted by the lecturers and contributors of the symposium.