Dark field proton radiography

M. S. Freeman; J. C. Allison; E. F. Aulwes; B. A. Broder; M. G. Davis; M. Espy; P. E. Magnelind; F. G. Mariam; L. I. Martinez; J. J. Medina; W. Z. Meijer; F. E. Merrill; C. Morris; L. P. Neukirch; K. P. Prestridge; A. Saunders; T. Schurman; R. B. Sidebottom; A. M. Tainter; Z. Tang; F. R. Trouw; D. Tupa; J. L. Tybo; C. H. Wilde

doi:10.1063/5.0021044

Dark field proton radiography

M. S. Freeman, J. C. Allison, E. F. Aulwes, B. A. Broder, M. G. Davis, M. Espy, P. E. Magnelind, F. G. Mariam, L. I. Martinez, J. J. Medina, W. Z. Meijer, F. E. Merrill, C. Morris, L. P. Neukirch, K. P. Prestridge, A. Saunders, T. Schurman, R. B. Sidebottom, A. M. Tainter, Z. TangF. R. Trouw, D. Tupa, J. L. Tybo, C. H. Wilde

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

A pre- and post-collimation scheme has been applied to high energy proton radiography to establish a dark field condition, which defaults to a state of no transmission until a scatterer is placed at the object plane. This technique, dark field proton radiography, provides two additional capabilities to a standard proton radiography setup. First, protons with a high degree of angular dispersion are removed from the beam, reducing the effects of chromatic aberrations and decreasing noise. Second, protons below the same threshold are removed from the beam downstream of the objects, effectively making the transmission highly sensitive to small amounts of scatter at the object plane. Initial results indicate that the system is highly sensitive to the presence of thinner materials and improves sensitivity to subtle areal density variations in thick objects.

Original language	English
Article number	144103
Journal	Applied Physics Letters
Volume	117
Issue number	14
DOIs	https://doi.org/10.1063/5.0021044
State	Published - Oct 5 2020
Externally published	Yes

Funding

This work was supported by the U.S. Department of Energy through the Los Alamos National Laboratory (LANL), operated by Triad National Security, LLC, for the National Nuclear Security Administration under Contract No. 89233218CNA000001. This work was supported by the LANL Laboratory Directed Research and Development program under Project No. 20180238ER. The authors would like to acknowledge the support for the proton radiography effort by the LANSCE staff, especially the accelerator operators and radiation control technicians, whose dedication ensures the productivity of the proton radiography project and LANSCE.

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10.1063/5.0021044

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Freeman, M. S., Allison, J. C., Aulwes, E. F., Broder, B. A., Davis, M. G., Espy, M., Magnelind, P. E., Mariam, F. G., Martinez, L. I., Medina, J. J., Meijer, W. Z., Merrill, F. E., Morris, C., Neukirch, L. P., Prestridge, K. P., Saunders, A., Schurman, T., Sidebottom, R. B., Tainter, A. M., ... Wilde, C. H. (2020). Dark field proton radiography. Applied Physics Letters, 117(14), Article 144103. https://doi.org/10.1063/5.0021044

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title = "Dark field proton radiography",

abstract = "A pre- and post-collimation scheme has been applied to high energy proton radiography to establish a dark field condition, which defaults to a state of no transmission until a scatterer is placed at the object plane. This technique, dark field proton radiography, provides two additional capabilities to a standard proton radiography setup. First, protons with a high degree of angular dispersion are removed from the beam, reducing the effects of chromatic aberrations and decreasing noise. Second, protons below the same threshold are removed from the beam downstream of the objects, effectively making the transmission highly sensitive to small amounts of scatter at the object plane. Initial results indicate that the system is highly sensitive to the presence of thinner materials and improves sensitivity to subtle areal density variations in thick objects.",

author = "Freeman, \{M. S.\} and Allison, \{J. C.\} and Aulwes, \{E. F.\} and Broder, \{B. A.\} and Davis, \{M. G.\} and M. Espy and Magnelind, \{P. E.\} and Mariam, \{F. G.\} and Martinez, \{L. I.\} and Medina, \{J. J.\} and Meijer, \{W. Z.\} and Merrill, \{F. E.\} and C. Morris and Neukirch, \{L. P.\} and Prestridge, \{K. P.\} and A. Saunders and T. Schurman and Sidebottom, \{R. B.\} and Tainter, \{A. M.\} and Z. Tang and Trouw, \{F. R.\} and D. Tupa and Tybo, \{J. L.\} and Wilde, \{C. H.\}",

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doi = "10.1063/5.0021044",

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Freeman, MS, Allison, JC, Aulwes, EF, Broder, BA, Davis, MG, Espy, M, Magnelind, PE, Mariam, FG, Martinez, LI, Medina, JJ, Meijer, WZ, Merrill, FE, Morris, C, Neukirch, LP, Prestridge, KP, Saunders, A, Schurman, T, Sidebottom, RB, Tainter, AM, Tang, Z, Trouw, FR, Tupa, D, Tybo, JL & Wilde, CH 2020, 'Dark field proton radiography', Applied Physics Letters, vol. 117, no. 14, 144103. https://doi.org/10.1063/5.0021044

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T1 - Dark field proton radiography

AU - Freeman, M. S.

AU - Allison, J. C.

AU - Aulwes, E. F.

AU - Broder, B. A.

AU - Davis, M. G.

AU - Espy, M.

AU - Magnelind, P. E.

AU - Mariam, F. G.

AU - Martinez, L. I.

AU - Medina, J. J.

AU - Meijer, W. Z.

AU - Merrill, F. E.

AU - Morris, C.

AU - Neukirch, L. P.

AU - Prestridge, K. P.

AU - Saunders, A.

AU - Schurman, T.

AU - Sidebottom, R. B.

AU - Tainter, A. M.

AU - Tang, Z.

AU - Trouw, F. R.

AU - Tupa, D.

AU - Tybo, J. L.

AU - Wilde, C. H.

PY - 2020/10/5

Y1 - 2020/10/5

N2 - A pre- and post-collimation scheme has been applied to high energy proton radiography to establish a dark field condition, which defaults to a state of no transmission until a scatterer is placed at the object plane. This technique, dark field proton radiography, provides two additional capabilities to a standard proton radiography setup. First, protons with a high degree of angular dispersion are removed from the beam, reducing the effects of chromatic aberrations and decreasing noise. Second, protons below the same threshold are removed from the beam downstream of the objects, effectively making the transmission highly sensitive to small amounts of scatter at the object plane. Initial results indicate that the system is highly sensitive to the presence of thinner materials and improves sensitivity to subtle areal density variations in thick objects.

AB - A pre- and post-collimation scheme has been applied to high energy proton radiography to establish a dark field condition, which defaults to a state of no transmission until a scatterer is placed at the object plane. This technique, dark field proton radiography, provides two additional capabilities to a standard proton radiography setup. First, protons with a high degree of angular dispersion are removed from the beam, reducing the effects of chromatic aberrations and decreasing noise. Second, protons below the same threshold are removed from the beam downstream of the objects, effectively making the transmission highly sensitive to small amounts of scatter at the object plane. Initial results indicate that the system is highly sensitive to the presence of thinner materials and improves sensitivity to subtle areal density variations in thick objects.

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SN - 0003-6951

VL - 117

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 14

M1 - 144103

ER -

Dark field proton radiography

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