Target 4 Flight Path 90L (TPC)

About Target 4 Flight Path 90L (TPC)

The flight path length is approximately 7 to 15m long. Instruments used on this flight path have included fission chambers and the fission Time Projection Chamber (TPC).

Partial view of FP90L (2013)

Fission chambers placed on FP90L have been used to measure cross-sections, yields, and total kinetic energy of fission fragments. The fission TPC is used to measure energy-differential neutron-induced fission cross-sections with unprecedented precision. The Neutron Induced Fission Fragment Tracking Experiment (NIFFTE) collaboration, comprised of scientists and students from six universities and four national laboratories, has developed this novel detection system, a permanent fixture on FP90L.

The fission cross section of U-236 measured at LANSCE. Also shown is the ENDF/B-VII evaluation of that cross section.

Measured and simulated flux profile at ~10m on FP90L.

Fission fragment tracks from a 252Cf source placed in the fissionTPC.