Demonstration of TNSA proton radiography on the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser. (12th November 2021)

• Record Type: Journal Article
• Authors: Simpson, R A; Mariscal, D A; Kim, J; Scott, G G; Williams, G J; Grace, E; McGuffey, C; Wilks, S; Kemp, A; Lemos, N; Djordjevic, B Z; Folsom, E; Kalantar, D; Zacharias, R; Pollock, B; Moody, J; Beg, F; Morace, A; Iwata, N; Sentoku, Y; Manuel, M J-E; Mauldin, M; Quinn, M; Youngblood, K; Gatu-Johnson, M; Lahmann, B; Haefner, C; Neely, D; Ma, T
• Is Part Of: Plasma physics and controlled fusion. Volume 63:Number 12(2021)
• Publication Date: 2021-11-12
• Subjects: proton radiography -- target-normal-sheath acceleration -- advanced radiographic capability; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/ac2349
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: Proton radiography using short-pulse laser drivers is an important tool in high-energy density (HED) science for dynamically diagnosing key characteristics in plasma interactions. Here we detail the first demonstration of target-normal sheath acceleration (TNSA)-based proton radiography the NIF-ARC laser system aided by the use of compound parabolic concentrators (CPCs). The multi-kJ energies available at the NIF-ARC laser allows for a high-brightness proton source for radiography and thus enabling a wide range of applications in HED science. In this demonstration, proton radiography of a physics package was performed and this work details the spectral properties of the TNSA proton probe as well as description of the resulting radiography quality.