Analysis

An Energy Resolving Pixellated CZT Detector for Drug Detection

CZT diffraction

A HEXITEC pixellated CZT detector of size 5 mm x 5 mm and 250 μm pitch with an Application Specific Integrated Circuit (ASIC) designed for spectroscopy has been used in an X-ray diffraction experiment to demonstrate as a proof of concept, its use for drug detection. More »

Potential of Energy Dispersive X-ray Diffraction (EDXRD) Technique in Breast Imaging

energy dispersive

X-ray mammography is the most widely used medical imaging modality for identification of breast micro-calcifications and small tumours. However, the mammograms produced exhibit limited image contrast, the reasons being similar attenuation properties of the breast tissues and noise due to the scattering of X-rays. More »

Development of a New Technique in Osteoporosis Classification for Diagnosis and Fracture Prevention

Osteoporosis bones

Osteoporosis is a bone disease characterized by low bone mass and micro-architectural deterioration of bone tissue with a consequent increase in bone fragility and susceptibility to fracture. A fracture can restrict activity, mobility and in severe cases, result in fatality. One in two women and one in five men will suffer a fracture after the age of 50. No symptoms prompt the patient to seek for medical advice at an early stage. However, since prevention and therapies of osteoporosis are available early stage diagnosis is important. More »

Towards Combined X-ray and Optical Mammography

breast phantom

In the NHS breast screening programme approximately 4% of screenings result in recall (Patnick 2009). Only 1 in 5 of these recalls end with a diagnosis of cancer (Waldron 2010). Increasing the specificity achieved would reduce the cost of identifying false positive screenings through further assessment or surgical biopsy (Burnside, 2001). Optical contrast, dependent upon haemodynamics and thus providing physiological as opposed to anatomical contrast, is complementary to radiographic contrast. More »

Energy/Angular Dispersive X-ray Diffraction of Some Biological Tissues

The project involves the study of the applications of new generation detector technology ,particularly the high purity germanium (HPGe) detector in some of the new developing areas of Diagnostic Radiology, particularly in Energy Dispersive X-Ray Diffraction(EDXRD) and Angular Dispersive X-Ray Diffraction(ADXRD). More »