A new tri-particle backlighter for radiography and stopping power measurements in HED plasmas at OMEGA and the NIF

1 poster by Patrick Adrian2 poster by Tim Johnson3 poster by Graeme Sutcliffe

4 poster by Justin Kunimune5 poster by Ben Reichelt6 poster by Jacob Pearcy

MIT PhD students work on NIF diagnostics (2nd DTn1, WRF/SRF2, PRAD3, MRS-t4, PTOF) and fundamental physics (hohlraum x-rays5 and fields6)

G. Sutcliffe, P. Adrian, J. Pearcy, T. Johnson, N. Kabadi, C. Parker*, B. Lahmann,

S. Haque, A. Birkel, M. Gatu Johnson, J. Frenje, F. Seguin, R. Petrasso, C.K. LiB. Pollock, J. Moody, J. Sanchez R. Janezic, M. Koch, V.Yu. Glebov, C. Forrest

Detector stack:

CR-39 and filtering

CH foil,

25 μm

1 cm 25 cm

Expanding

plasma bubble

∇n

∇T

Blaser

DT3He

tri-particle

backlighter

3 mm

mesh

The 9.5 MeV deuteron is ideal in experiments where fields and plasma scattering are too strong for

the DD-proton to produce a quality radiograph (for example, hohlraum experiments)

𝜃ℰ ∝ ൗ𝑞ℰ𝐿𝐸

𝜃𝐵 ∝ ൘𝑞𝐵𝐿

𝑚𝐸

𝜃𝑑𝐸𝑑𝑥

∝ ൗ𝑞2𝑛𝐿𝐸

14.7 MeV D3He-p

t = 0.49 ns

9.5 MeV T3He-d

t = 0.70 ns

3 MeV DD-p

t = 0.83 ns

max

0