Quick Shot

Highlighted as the CryoNTD in a previous Quick Shot (01/19/15), the P11-NTD is a next-generation neutron temporal diagnostic, which measures the neutron production history during high-yield cryogenic implosions. The diagnostic utilizes a ~16-m image relay in order to shield the ROSS streak camera recording device (shown in red) from stray neutrons. The streak camera records the light produced from a neutron-sensitive scintillator placed 10 cm from the center of the target chamber as well as from two optical timing fiducials. Senior Laboratory Engineer and P11-NTD instrument specialist, Joe Katz, is shown checking the final alignment of the diagnostic before its first shot. The measured neutron width of 80±10 ps was in very good agreement with theoretical predictions.