PSD11: The 11th International Conference on Position Sensitive Detectors

Session

Applications in life sciences, biology and medicine: Electrons and positrons

8 Sept 2017, 11:30

138. The direct electron detector driven revolution in structural biology

Greg McMullan (MRC-LMB)

08/09/2017, 11:30

Talk

Electron cryo-microscopy, cryoEM, is rapidly replacing X-ray crystallography as the preferred method in structural biology for determining the structures of biological molecules. The rise of cryoEM can be traced to the introduction of higher detective quantum efficiency, DQE, CMOS based direct electron detectors. The resulting improved signal to noise in images of radiation sensitive samples...

83. Performance studies towards a TOF-PET sensor using Compton scattering at plastic scintillators

Takeshi Nakamori (Yamagata University)

08/09/2017, 12:00

Talk

Positron emission tomography is a powerful tool in nuclear medicine for diagnosing cancers and Alzheimer’s disease in early stages. We develop a sensor head for a Time-of-flight PET scanner using plastic scintillators which have a very fast timing property. Since the cross section of the photoelectric absorption in plastic scintillators is extremely small at 511 keV, we use Compton scattering...

89. A thin time-of-flight PET scanner based on novel pixel silicon detectors

Yves Bandi (Universitaet Bern (CH))

08/09/2017, 12:20

Talk

The TT-PET project aims at developing a compact Time-of-flight PET scanner with 30ps time resolution, capable of withstanding high magnetic fields and allowing for integration in a traditional MRI scanner, providing complimentary real-time PET images. The very high timing resolution of the TT-PET scanner is achieved thanks to a new generation of Silicon-Germanium (Si-Ge) amplifiers, which are...

92. Regularized Richardson-Lucy deconvolution of positron range effects in micro-PET studies

Mercedes Rodriguez-Villafuerte (Instituto de Fisica, UNAM)

08/09/2017, 12:40

Talk

Positron range effects in positron emission tomography (PET) studies have a negative impact in both spatial resolution and activity concentration quantification, particularly when high energy positron emitters travel in low density tissues. Several methods have been proposed to recover spatial resolution in PET with the aim of improving image quality. In this work, we propose a regularized...

90. A large-area detector module based on SiPM and pixelated LYSO crystal arrays

Dr Héctor Alva-Sánchez (Instituto de Física, UNAM)

08/09/2017, 13:00

Talk

The optimization and characterization of a large area detector module, aimed at constructing a positron emission mammogram prototype, is presented. The device features a SensL ArrayC-60035-64P-PCB solid state detector (8x8 array of tileable SiPM by SensL, 7.2 mm pitch) covering a total area of 57.4×57.4 mm2. The array was tested using 10 mm thick, LYSO pixelated crystal arrays of different...