One dimensional imager of neutrons on the Z machine

被引：14

作者：

Ampleford, David J. ^{[1
]}

Ruiz, Carlos L. ^{[1
]}

Fittinghoff, David N. ^{[2
]}

Vaughan, Jeremy D. ^{[1
,3
]}

Hahn, Kelly ^{[1
]}

Lahmann, Brandon ^{[4
]}

Gatu-Johnson, Maria ^{[4
]}

Frenje, Johan ^{[4
]}

Petrasso, Richard ^{[4
]}

Ball, Christopher R. ^{[1
]}

Maurer, Andrew J. ^{[1
]}

Knapp, Patrick F. ^{[1
]}

Harvey-Thompson, Adam J. ^{[1
]}

Fisher, John ^{[1
]}

Alberto, Perry ^{[1
]}

Torres, Jose A. ^{[1
]}

Cooper, Gary ^{[3
]}

Jones, Brent ^{[1
]}

Rochau, Gregory A. ^{[1
]}

May, Mark J. ^{[2
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[3] Univ New Mexico, Albuquerque, NM 87131 USA

[4] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 10期

关键词：

CR-39;

D O I：

10.1063/1.5038118

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of similar to 3 x 10(12). X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, similar to 100-mu m diameter column. The small radial extents and present yields precluded useful radial resolution, so a one-dimensional imager was developed. The imaging component is a 100-mm thick tungsten slit; a rolled-edge slit limits variations in the acceptance angle along the source. CR39 was chosen as a detector due to its negligible sensitivity to the bright x-ray environment in Z. A layer of high density poly-ethylene is used to enhance the sensitivity of CR39. We present data from fielding the instrument on Z, demonstrating reliable imaging and track densities consistent with diagnosed yields. For yields similar to 3 x 10(12), we obtain resolutions of similar to 500 mu m. Published by AIP Publishing.

引用

页数：5

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