Conveners
X-Ray and Gamma detectors
- Paul Sellin (University of Surrey)
Dr
Johan Bregeon
(INFN sez. di Pisa)
13/09/2011, 09:00
X-ray and Gamma-ray Detectors
Oral Presentation
The Large Area Telescope (LAT) is the primary instrument onboard the Fermi Gamma-ray Space Telescope (Fermi),
an observatory on a low earth orbit that was launched on 11 June 2008 to monitor the high energy gamma-ray sky. The LAT tracker is a solid-state instrument :
tungsten foils converts the gamma rays into electron-positron pairs which are then tracked in silicon planes in order to...
Dr
John Lees
(University of Leicester)
13/09/2011, 09:20
X-ray and Gamma-ray Detectors
Oral Presentation
New types of detectors based on the wide band gap material AlGaAs have been developed for soft X-ray spectroscopy applications. We report on the spectroscopic performance of simple p-i-n diodes and avalanche photodiodes (APDs). A number of diode types with different layer thicknesses have also been characterised. X-ray spectra from a 55Fe radioactive source show these diodes can be used for...
Anthony Sweeney
(University of Liverpool)
13/09/2011, 09:40
X-ray and Gamma-ray Detectors
Oral Presentation
Homeland security agencies have a requirement to be able to locate and identify radionuclides which decay via gamma ray emission. One possible solution is the use of a Compton camera [1,2]. A prototype planar semiconductor Compton imaging device is under development at the University of Liverpool in partnership with the Atomic Weapons Establishment (AWE). Compton cameras offer higher detection...
Wladyslaw Dabrowski
(AGH University of Science & Technology)
13/09/2011, 10:00
X-ray and Gamma-ray Detectors
Oral Presentation
1-D position sensitive X-ray detectors based on silicon strip detector technology have become a standard for x-ray diffraction instrumentation. They are widely used with laboratory equipment but also at powder XRD beam lines. As these devices have been proven to be very useful due to their measurement speed and angular resolution, the implementation of further improvements of their performance...
Mr
Paul Seller
(RAL)
13/09/2011, 10:20
X-ray and Gamma-ray Detectors
Oral Presentation
We have developed a pixellated high-energy X-ray detector instrument to be used in a variety of imaging applications. The instrument consists of a Cadmium Zinc Telluride based detector bump-bonded to a large area ASIC and packaged with a high performance data acquisition system. The 80 by 80 pixels each of 250um by 250um give 1-1.5kev energy resolution at the same time providing a high speed...
