Iranian Light Source Facility, A third generation light source laboratory

Rahighi, J.; Rachti, M. Lamehi; Eghbali, Rahman; Salimi, Elham; Ghasem, Hossein; Sarhadi, K.; Khatibani, M Jafarzadeh; Dehghani, Jafar; Saeidi, Farhad; Sadeghipanah, A.

doi:10.18869/acadpub.ijpr.15.2.159

Cited by 4 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Synchrotron as an experimental physics facility enables scientists to conduct experiments and study materials at a nanoscopic scale. Synchrotron radiation has become an essential part of research in multiple disciplines that depend on light source for their studies [1]. The radiation produced by a synchrotron can be used to study samples with higher precision through various experiments done in the fields of physics, chemistry, biology, medicine, etc.…”

Section: Particle Accelerator and Synchrotronmentioning

confidence: 99%

Design of a vertical search engine for synchrotron data: a big data approach using Hadoop ecosystem

2019

View full text Add to dashboard Cite

A synchrotron as an experimental physics facility can provide the opportunity of a multi-disciplinary research and collaboration between scientists in various fields of study such as physics, chemistry, etc. During the construction and operation of such facility valuable data regarding the design of the facility, instruments and conducted experiments are published and stored. It takes researchers a long time going through different results from generalized search engines to find their needed scientific information so that the design of a domain specific search engine can help researchers to find their desired information with greater precision. It also provides the opportunity to use the crawled data to create a knowledgebase and also to generate different datasets required by the researchers. There have been several other vertical search engines that are designed for scientific data search such as medical information. In this paper we propose the design of such search engine on top of the Apache Hadoop framework. Usage of Hadoop ecosystem provides the necessary features such as scalability, fault tolerance and availability. It also abstracts the complexities of search engine design by using different open source tools as building blocks, among them Apache Nutch for the crawling block and Apache Solr for indexing and query processing. Our primary results obtained by implementing the proposed method in single node mode, the index of over a hundred thousand pages was created with the average fetch interval of 30 days having 28 segments and approximately 570 MB size. The performance factors such as the usage of available bandwidth and system load were logged using Linux's sysstat package.

show abstract

Section: Particle Accelerator and Synchrotronmentioning

confidence: 99%

Design of a vertical search engine for synchrotron data: a big data approach using Hadoop ecosystem

2019

View full text Add to dashboard Cite

show abstract

“…Tel. : +98 21 22431595; fax: +98 21 29902546. from the beginning to the end [2]. Within the accelerating tube a strong uniform electric field accelerates protons toward the target.…”

Section: Q3mentioning

confidence: 99%

Design and construction of a secondary electron suppressed Faraday Cup for measurement of beam current in an electrostatics proton accelerator

Ebrahimibasabi

Feghhi

2015

International Journal of Mass Spectrometry

View full text Add to dashboard Cite

“…Considering vast growth of accelerators applications, Iran has started several projects on the design and construction of various types of accelerators in recent years. Institute for research in fundamental sciences (IPM) has two projects in progress on the design and construction of a linear electron accelerator and synchrotron radiation accelerator based on which IPM is an accelerator pioneer in Iran [1]. Due to Iran's growing need for accelerators in radiotherapy, industrial irradiation, cargo inspection, researches in physics, and electron synchrotron pre-injection, IPM's electron linear accelerator project has been defined.…”

Section: Introductionmentioning

confidence: 99%

Investigation of using shrinking method in construction of Institute for Research in Fundamental Sciences Electron Linear Accelerator TW-tube (IPM TW-Linac tube)

Ghasemi

Davani

2015

J. Inst.

View full text Add to dashboard Cite

Due to Iran's growing need for accelerators in various applications, IPM's electron Linac project has been defined. This accelerator is a 15 MeV energy S-band traveling-wave accelerator which is being designed and constructed based on the klystron that has been built in Iran. Based on the design, operating mode is π/2 and the accelerating chamber consists of two 60cm long tubes with constant impedance and a 30cm long buncher. Amongst all construction methods, shrinking method is selected for construction of IPM's electron Linac tube because it has a simple procedure and there is no need for large vacuum or hydrogen furnaces. In this paper, different aspects of this method are investigated. According to the calculations, linear ratio of frequency alteration to radius change is 787.8 MHz/cm, and the maximum deformation at the tube wall where disks and the tube make contact is 2.7µm. Applying shrinking method for construction of 8-and 24-cavity tubes results in satisfactory frequency and quality factor. Average deviations of cavities frequency of 8-and 24-cavity tubes to the design values are 0.68 MHz and 1.8 MHz respectively before tune and 0.2 MHz and 0.4 MHz after tune. Accelerating tubes, buncher, and high power couplers of IPM's electron linac are constructed using shrinking method.

show abstract

Iranian Light Source Facility, A third generation light source laboratory

Cited by 4 publications

References 0 publications

Design of a vertical search engine for synchrotron data: a big data approach using Hadoop ecosystem

Design of a vertical search engine for synchrotron data: a big data approach using Hadoop ecosystem

Design and construction of a secondary electron suppressed Faraday Cup for measurement of beam current in an electrostatics proton accelerator

Investigation of using shrinking method in construction of Institute for Research in Fundamental Sciences Electron Linear Accelerator TW-tube (IPM TW-Linac tube)

Contact Info

Product

Resources

About