การถ่ายภาพด้วยนิวตรอน

วิทยาศาสตร์กับนิวตรอน
รากฐาน
การกระเจิงนิวตรอน
การประยุกต์ใช้งานอื่น
โครงสร้างพื้นฐาน
ห้องปฏิบัติการด้านนิวตรอน

การถ่ายภาพด้วยนิวตรอน (อังกฤษ: Neutron tomography) เป็นรูปแบบหนึ่งของการถ่ายภาพด้วยเครื่องคอมพิวเตอร์ที่เกี่ยวข้องกับการผลิตภาพสามมิติโดยการตรวจพบการดูดซับนิวตรอนที่ผลิตโดยแหล่งกำเนิดนิวตรอน[1] มันสร้างภาพสามมิติของวัตถุโดยการรวมภาพที่ถ่ายแยกจากกันหลายภาพ[2] มีความละเอียดประมาณ 200-500 ไมโครเมตร[3] ในขณะที่ความละเอียดของมันต่ำกว่าของการถ่ายภาพด้วยเอกซ์เรย์ มันก็ยังมีประโยชน์สำหรับชิ้นงานที่มีความคมชัดต่ำระหว่างเมทริกซ์และวัตถุที่กำลังตรวจสอบ เช่นฟอสซิลที่มีปริมาณคาร์บอนสูงเช่นซากพืชหรือซากสัตว์มีกระดูกสันหลัง[4]

โชคร้ายที่การถ่ายภาพด้วยนิวตรอนสามารถมีผลข้างเคียงจากการทิ้งไว้ของกัมมันตรังสีบนสารตัวอย่างถ้าพวกมันประกอบด้วยระดับที่ประเมินค่าได้ขององค์ประกอบบางอย่าง[5]

ดูเพิ่ม

  • Winkler, B. (2006). "Applications of Neutron Radiography and Neutron Tomography". Reviews in Mineralogy and Geochemistry 63: 459. doi:10.2138

อ้างอิง

  1. ↑ Grünauer, F.; Schillinger, B.; Steichele, E. (2004). "Optimization of the beam geometry for the cold neutron tomography facility at the new neutron source in Munich". Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 61 (4): 479–485. doi:10.1016/j.apradiso.2004.03.073. PMID 15246387.
  2. ↑ McClellan Nuclear Radiation Center
  3. ↑ "Neutron Tomography". Paul Scherrer Institut.
  4. ↑ Sutton, M. D. (2008). "Tomographic techniques for the study of exceptionally preserved fossils". Proceedings of the Royal Society B: Biological Sciences 275 (1643): 1587–1593. doi:10.1098/rspb.2008.0263. PMC 2394564. PMID 18426749.
  5. ↑ Sutton, M. D. (2008). "Tomographic techniques for the study of exceptionally preserved fossils". Proceedings of the Royal Society B: Biological Sciences 275 (1643): 1587–1593. doi:10.1098/rspb.2008.0263. PMC 2394564. PMID 18426749.

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