{"title":"场发射型脉冲x射线源余辉测量系统的研制","authors":"Hiromi Kimura , Takeshi Fujiwara , Ryoichi Suzuki , Hidetoshi Kato","doi":"10.1016/j.jlumin.2025.121485","DOIUrl":null,"url":null,"abstract":"<div><div>We have developed a desktop afterglow measurement system using a coniferous carbon nano-structure-based field emission-type pulsed X-ray source. The system is composed of a pulsed X-ray generator and a detector unit, and the pulsed width of the X-ray was adjustable from a few microseconds up to continuous operation. To demonstrate the performance of this system, the afterglow properties of commercially available scintillators including Tl-doped CsI, Pr-doped Gd<sub>2</sub>O<sub>2</sub>S (sheet and ceramic forms), Bi<sub>4</sub>Ge<sub>3</sub>O<sub>12</sub>, CdWO<sub>4</sub> were evaluated. The obtained afterglow profiles were comparable to those in previous studies. Furthermore, the effect of the X-ray pulse width on the afterglow was confirmed.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"287 ","pages":"Article 121485"},"PeriodicalIF":3.6000,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Development of afterglow measurement system using a field emission-type pulsed X-ray source\",\"authors\":\"Hiromi Kimura , Takeshi Fujiwara , Ryoichi Suzuki , Hidetoshi Kato\",\"doi\":\"10.1016/j.jlumin.2025.121485\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We have developed a desktop afterglow measurement system using a coniferous carbon nano-structure-based field emission-type pulsed X-ray source. The system is composed of a pulsed X-ray generator and a detector unit, and the pulsed width of the X-ray was adjustable from a few microseconds up to continuous operation. To demonstrate the performance of this system, the afterglow properties of commercially available scintillators including Tl-doped CsI, Pr-doped Gd<sub>2</sub>O<sub>2</sub>S (sheet and ceramic forms), Bi<sub>4</sub>Ge<sub>3</sub>O<sub>12</sub>, CdWO<sub>4</sub> were evaluated. The obtained afterglow profiles were comparable to those in previous studies. Furthermore, the effect of the X-ray pulse width on the afterglow was confirmed.</div></div>\",\"PeriodicalId\":16159,\"journal\":{\"name\":\"Journal of Luminescence\",\"volume\":\"287 \",\"pages\":\"Article 121485\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-08-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Luminescence\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022231325004259\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231325004259","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
Development of afterglow measurement system using a field emission-type pulsed X-ray source
We have developed a desktop afterglow measurement system using a coniferous carbon nano-structure-based field emission-type pulsed X-ray source. The system is composed of a pulsed X-ray generator and a detector unit, and the pulsed width of the X-ray was adjustable from a few microseconds up to continuous operation. To demonstrate the performance of this system, the afterglow properties of commercially available scintillators including Tl-doped CsI, Pr-doped Gd2O2S (sheet and ceramic forms), Bi4Ge3O12, CdWO4 were evaluated. The obtained afterglow profiles were comparable to those in previous studies. Furthermore, the effect of the X-ray pulse width on the afterglow was confirmed.
期刊介绍:
The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid.
We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.