نتایج جستجو برای: segmented detector arrays

تعداد نتایج: 126504  

2010
A. Algora A. M. Bruce J. Gerl M. Górska M. Pfützner N. Pietralla D. Rudolph

Fingerprinting excited nuclear states by γ-ray spectroscopy has been a viable tool to benchmark nuclear models for decades. Since contemporay nuclear structure investigations aim at the study and understanding of very exotic nuclei at the limits of stability and their decay properties, large and thus highly efficient γ-ray spectroscopy instruments are the basis for continued discoveries into th...

2012
Dongming Hu

This chapter introduces an application case of self-organizing feature map (SOFM) on event processing of Positron Emission Tomagraph (PET) detector. The Siemens Inveon Dedicated PET scanner uses an array of 64 20x20 segmented LSO detectors in a tomographic arrangement to allow PET imaging of small animals. A detector consists of 20x20 LSO crystal pixels coupled to a Position Sensitive Photomult...

2008
C. E. Beer A. M. Laird P. Salter

An experiment to measure the 18F(p,α)15O cross section at low centre of mass energies has been performed with the TRIUMF-UK Detector Array (TUDA) facility at TRIUMF. Measurements of the 18F(p,α)15O reaction rate at four separate centre of mass energies; 665 keV, 430 keV, 330 keV and 250 keV, were carried out. The main goal of the experiment was the measurement of the 18F(p,α)15O cross section b...

2007
Andrew Knox

The next generation of γ-ray detector arrays will be composed of large volume high purity germanium (HPGE) detectors that are electronically segmented. These detectors will be able to track γ-rays as they Compton scatter within the crystal and between adjacent crystals, eliminating the need for Compton suppression detectors and improving angular resolution. The new arrays will have much higher ...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2017

Journal: :Journal of Instrumentation 2012

Journal: :iranian journal of radiation research 0
h. nan department of biomedical engineering, school of bioengineering, chongqing university, chongqing 400030, china s. jinlu department of radiation oncology, chongqing daping hospital, chongqing, 400042, china z. shaoxiang department of anatomy, institution of digital medicine, tmmu, chongqing 400038, china h. qing institute of nuclear science and technology, sichuan university, chengdu 610064, china t. li-wen department of anatomy, institution of digital medicine, tmmu, chongqing 400038, china g. chengjun institute of nuclear science and technology, sichuan university, chengdu 610064, china

background: accurate voxel phantom is needed for dosimetric simulation in radiation therapy for malignant tumors in female pelvic region. however, most of the existing voxel phantoms are constructed on the basis of caucasian or non-chinese population. materials and methods: a computational framework for constructing female pelvic voxel phantom for radiation dosimetry was performed based on chin...

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