สืบค้นงานวิจัย
Bare Neutron Counter and Neutron Monitor Response to Cosmic Rays During a 1995 Latitude Survey
Nuntiyakul W. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Bare Neutron Counter and Neutron Monitor Response to Cosmic Rays During a 1995 Latitude Survey
ผู้แต่ง / หัวหน้าโครงการ (EN): Nuntiyakul W.
บทคัดย่อ (EN): Neutron monitors of standard design (IGY or NM64) are employed worldwide to study variations in the flux of galactic cosmic rays and solar energetic particles in the GeV range. The design minimizes detector response to neutrons below ∼10 MeV produced by cosmic ray interactions in the ambient medium. Increasingly, however, such neutrons are of interest as a means of obtaining spectral information on cosmic rays, for studies of soil moisture, and for nuclear threat detection. Bare neutron counters, a type of lead-free neutron monitor, can detect such neutrons, but comparatively little work has been done to characterize the dependence of their count rate on cutoff rigidity. We analyze data from three bare neutron counters operated on a ship together with a three-tube NM64 monitor from November 1995 to March 1996 over a wide range of magnetic latitude, that is, a latitude survey. The bare counter design used foamed-in-place polyurethane insulation to keep the temperature uniform and to some extent moderate high-energy neutrons. When the ship was near land, the bare/NM64 count rate ratio was dramatically higher. Considering only data from open sea, the bare and NM64 pressure coefficients are not significantly different. We determine the response function of these bare counters, which is weighted to Galactic cosmic rays of lower energy than the NM64. This measurement of the response function may improve determination of the spectral index of solar energetic particles and Galactic cosmic rays from a comparison of bare and NM64 count rates. ©2018. American Geophysical Union. All Rights Reserved.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052968884&doi=10.1029%2f2017JA025135&partnerID=40&md5=cb6a921d9fea4adb55d48f6f117bf390
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): neutron monitors
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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Nuntiyakul W.. "Bare Neutron Counter and Neutron Monitor Response to Cosmic Rays During a 1995 Latitude Survey". ไม่ระบุหน่วยงาน. ม.ป.ป.

Nuntiyakul W.. "Bare Neutron Counter and Neutron Monitor Response to Cosmic Rays During a 1995 Latitude Survey". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Bare Neutron Counter and Neutron Monitor Response to Cosmic Rays During a 1995 Latitude Survey
Nuntiyakul W.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Dependence of the neutron monitor count rate and time delay distribution on the rigidity spectrum of primary cosmic rays Monte Carlo simulation of the neutron monitor yield function MONITORING SHORT-TERM COSMIC-RAY SPECTRAL VARIATIONS USING NEUTRON MONITOR TIME-DELAY MEASUREMENTS Measurement and simulation of neutron monitor count rate dependence on surrounding structure Latitude survey investigation of galactic cosmic ray solar modulation during 1994-2007 Distinct Pattern of Solar Modulation of Galactic Cosmic Rays above a High Geomagnetic Cutoff Rigidity Corotating solar wind structures and recurrent trains of enhanced diurnal variation in galactic cosmic rays A Benchmark Survey on Rubber Growing in Mindanao Immune response to recombinant Burkholderia pseudomallei FliC Scientific Publications Relating to Insect Vectors from 1995 to 2004
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