Design of Wide-energy-range Neutron Calorimeter for Nuclear Collisions in the Korea Rare-isotope Accelerator
DC Field | Value | Language |
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dc.contributor.author | Hong, Byungsik | - |
dc.contributor.author | Jhang, Genie | - |
dc.contributor.author | Joo, Eunah | - |
dc.contributor.author | Lee, Kyong Sei | - |
dc.contributor.author | Shim, Hyunha | - |
dc.date.accessioned | 2021-09-07T15:50:25Z | - |
dc.date.available | 2021-09-07T15:50:25Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2011-02 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/113198 | - |
dc.description.abstract | We have designed a neutron calorimeter dedicated to the measurement of the nuclear symmetry energy in the planned Korea rare-isotope accelerator. The design was optimized to precisely measure the neutron energy with high efficiency in a wide energy range from about 30 to 300 MeV. The final configuration of the detector is a hybrid of the homogeneous and the sampling calorimeters with a veto counter in the front. The homogeneous part is ideal for measuring low-energy neutrons below similar to 50 MeV whereas the sampling part is efficient for measuring high-energy neutrons. The detection efficiency is estimated to be about 88% for neutron energies larger than 50 MeV and decreases to similar to 78% at 30 MeV. We have estimated the energy resolution as a function of the incident energy based on the time-of-flight method. Assuming an ideal detector performance with null time resolution, the relative energy resolution decreases as the incident neutron energy increases. However, under a more realistic situation with a finite time resolution for the detector, the energy resolution monotonically increases with increasing the neutron energy, following a logarithmic function. Imposing an energy resolution of better than 3% at the highest neutron energy, we find the nominal position of the hybrid calorimeter to be 15 m from the target for a time resolution of 1.0 ns, but the detector needs to be free to move closer to or farther from the target, depending on the physics goal. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.subject | HEAVY-ION COLLISIONS | - |
dc.title | Design of Wide-energy-range Neutron Calorimeter for Nuclear Collisions in the Korea Rare-isotope Accelerator | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Hong, Byungsik | - |
dc.identifier.doi | 10.3938/jkps.58.211 | - |
dc.identifier.scopusid | 2-s2.0-79951600073 | - |
dc.identifier.wosid | 000287426100007 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.58, no.2, pp.211 - 222 | - |
dc.relation.isPartOf | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.title | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.volume | 58 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 211 | - |
dc.citation.endPage | 222 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001525936 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.subject.keywordPlus | HEAVY-ION COLLISIONS | - |
dc.subject.keywordAuthor | Neutron calorimeter | - |
dc.subject.keywordAuthor | Symmetry energy | - |
dc.subject.keywordAuthor | Equation of state | - |
dc.subject.keywordAuthor | Heavy-ion collision | - |
dc.subject.keywordAuthor | Korea rare-isotope accelerator | - |
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