Dr
Kukka Miikkulainen
(Oxford Instruments Analytical Oy)
08/09/2014, 11:00
X-ray and gamma ray detectors
Oral Paper
A side-illuminated GaAs strip detector prototype for inspecting welds on copper canisters has been designed and is being manufactured. The detector has 512 channels and the strips are focused towards the radiation source, the distance between source and detector being 2200 mm. The X-ray beam is collimated to an area of 100mm x 0.2um on the edge of the detector by a collimator 150 mm in length,...
Mrs
Stefanie Elbracht-Leong
(University of Melbourne)
08/09/2014, 11:20
Detectors for Synchrotron Radiation
Oral Paper
MYTHEN is a single photon counting hybrid strip X-ray detector that has found application in powder diffraction (XRPD) experiments at synchrotrons worldwide. Originally designed to operate with a silicon sensor, MYTHEN is ideally suited for detecting X-rays from 3-16 keV, however many XRPD beamlines have been designed for energies above 50keV. In order to adapt Mythen to meet these demands...
Matthew Veale
(STFC Rutherford Appleton Laboratory)
08/09/2014, 11:40
X-ray and gamma ray detectors
Oral Paper
Over the last 10 years STFC have developed a range of small pixel spectroscopic imaging detectors based on Cadmium Telluride (CdTe) and Cadmium Zinc Telluride (CdZnTe) materials [1]. These detectors consistently produce excellent spectroscopic performance with greater than 98 % of pixels having a FWHM of 1 keV or better at 60 keV [2]. These detectors are now in use in a number of different...
Vytautas Astromskas
(U)
08/09/2014, 12:00
X-ray and gamma ray detectors
Oral Paper
Pixellated CdTe semiconductor detectors provide the stopping power that is needed for experiments performed at synchrotron radiation facilities at high photon energy (over 20 keV). Previous experiments conducted with CdTe Medipix detectors with Ohmic contacts showed defects that affect the image quality, as they cannot be corrected by flat field coefficient factors. Electron collection...
Ms
Victoria Boothman
(University of Surrey)
08/09/2014, 12:20
X-ray and gamma ray detectors
Oral Paper
Ring-drift design has been applied for the first time to large (6mm) CZT detectors for hard x-ray spectroscopy. The detectors have also been modelled with Sentaurus TCAD, a powerful 3D tool. Our aim is to determine the electrode geometry and bias conditions that optimise energy resolution and sensitivity.\\
These devices are intended as a high-resolution room temperature photon detector...
Dr
David Pennicard
(DESY)
08/09/2014, 12:40
Detectors for Synchrotron Radiation
Oral Paper
Single-photon-counting pixel detectors provide high signal-to-noise ratios, fast readout, and sophisticated functionality, making them the technology of choice of many experiments at synchrotrons. LAMBDA (Large Area Medipix3-Based Detector Array) has been developed to improve on existing photon-counting systems. LAMBDA uses the Medipix3 readout chip, and combines the small pixel size (55 µm)...
