background: radiation therapy  uses high-energy radiation to kill cancer cells. photoneutron contamination and induced radioactivity of high energy therapeutic photon beams are considered as the main source of occupational exposure to radiation therapists who works with linear accelerators operating above 10 mv. materials and methods: the gamma dose rates were measured after termination of diff...

2014 This summary reviews the information and new results presented at this Conference and compares the present overall performance of the major electrostatic accelerators to that at the time of the last Conference, four years ago. The advances in electrostatic accelerator technology in the four year period are discussed in terms of accelerator tube improvements, electrostatic charging system i...

introduction: intensity modulated radiation therapy (imrt) is one of the cancer treatment methods. it is important to selectively aim at the target in this way, which can be performed using a multileaf collimator (mlc). materials and methods: in order to specifically irradiate the target volume in radiotherapy to reduce the patient absorbed dose, the use of multileaf collimator has been investi...

introduction electron linear accelerator (linac) can be used for neutron production in boron neutron capture therapy (bnct). bnct is an external radiotherapeutic method for the treatment of some cancers. in this study, varian 2300 c/d linac was simulated as an electron accelerator-based photoneutron source to provide a suitable neutron flux for bnct. materials and methods photoneutron sources w...

Convolution neural networks (CNNs) as one of today's main flavor deep learning techniques dominate in various image recognition tasks. As the model size modern CNNs continues to grow, network compression have been proposed prune redundant neurons and synapses. However, prior disconnect software hardware acceleration, which fail balance multiple design parameters, including sparsity, performance...

A 1MV Tandem Proton Accelerator is being developed for the industrial applications such as high-energy implantation and explosive detection. The proton accelerator consists of a 10mA negative hydrogen ion source, two Einzel lens, accelerating tubes, a gas stripper, a 1MV 30mA Cockroft-Walton high voltage power supply, vacuum pumping system, and a high pressure insulating gas system. The large c...

AbstractRecently low-precision deep learning accelerators (DLAs) have become popular due to their advantages in chip area and energy consumption, yet the quantized models on these DLAs bring severe accuracy degradation. One way achieve both high efficient inference is deploy high-precision neural networks DLAs, which rarely studied. In this paper, we propose PArallel Low-precision Quantization ...

One of the most vexing questions facing researchers interest in the World Wide Web is how the performance of Web Server could be improved. In this paper we discuss the results of our investigation on potential of httpd accelerator (phhttpd) to improve web server performance. This paper presents comparative results for running the Web server with and without an accelerator, and measures the effe...

The status of PAMELA (Particle Accelerator for MEdical Applications) – an accelerator for proton and light ion therapy using a non-scaling FFAG (ns-FFAG) accelerator – is reviewed and discussed.