DC Field | Value | Language |
---|---|---|
dc.contributor.author | Na, M. | - |
dc.contributor.author | Lee, S. | - |
dc.contributor.author | Kim, H. S. | - |
dc.contributor.author | Rho, J. | - |
dc.contributor.author | Kim, G. | - |
dc.contributor.author | Ok, J. G. | - |
dc.date.accessioned | 2018-06-15T05:30:47Z | - |
dc.date.available | 2018-06-15T05:30:47Z | - |
dc.date.created | 2018-01-24 | - |
dc.date.issued | 2017-12 | - |
dc.identifier.issn | 1748-0221 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/50552 | - |
dc.description.abstract | Detecting and mapping the spatial distribution of radioactive materials is of great importance for environmental and security issues. We design and present a novel hemispherical rotational modulation collimator (H-RMC) system which can visualize the location of the radiation source by collecting signals from incident rays that go through collimator masks. The H-RMC system comprises a servo motor-controlled rotating module and a hollow heavy-metallic hemisphere with slits/slats equally spaced with the same angle subtended from the main axis. In addition, we also designed an auxiliary instrument to test the imaging performance of the H-RMC system, comprising a high-precision x-and y-axis staging station on which one can mount radiation sources of various shapes. We fabricated the H-RMC system which can be operated in a fully-automated fashion through the computer-based controller, and verify the accuracy and reproducibility of the system by measuring the rotational and linear positions with respect to the programmed values. Our H-RMC system may provide a pivotal tool for spatial radiation imaging with high reliability and accuracy. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.relation.isPartOf | JOURNAL OF INSTRUMENTATION | - |
dc.title | Development of a hemispherical rotational modulation collimator system for imaging spatial distribution of radiation sources | - |
dc.type | Article | - |
dc.identifier.doi | 10.1088/1748-0221/12/12/C12050 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF INSTRUMENTATION, v.12, pp.C12050 | - |
dc.identifier.wosid | 000419045700004 | - |
dc.date.tcdate | 2018-03-23 | - |
dc.citation.startPage | C12050 | - |
dc.citation.title | JOURNAL OF INSTRUMENTATION | - |
dc.citation.volume | 12 | - |
dc.contributor.affiliatedAuthor | Rho, J. | - |
dc.identifier.scopusid | 2-s2.0-85039779936 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.type.docType | Article; Proceedings Paper | - |
dc.subject.keywordPlus | GE DETECTORS | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordAuthor | Detector design and construction technologies and materials | - |
dc.subject.keywordAuthor | Gamma telescopes | - |
dc.subject.keywordAuthor | Overall mechanics design (support structures and materials, vibration analysis etc) | - |
dc.subject.keywordAuthor | Search for radioactive and fissile materials | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
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