CPP-NPP Target

Description

• The 208Pb target, manufactured by Oak Ridge National Laboratory, is a 1-in.-diameter circular foil of 99.09% enriched 208Pb, with an approximate thickness of 12 mils.
• A description of the target can be found in P. Martel et al., "Nuclear Targets for a Precision Measurement of the Neutral Pion Radiative Width," NIMA 612 (2009) 46-49.
• Target Frame Drawings
• Links to drawings (Bobby Bunton)

Photos of target beamline

• pic1
• pic2
• pic3
• pic4
• Target 208Pb
• Photo of mockup of target frame

Beam Line Components

• exit beam pipe window: 125um Kapton
• distance from exit beam pipe window and target: ~3cm
• distance from lead target to entrance He bag: ~1cm
• entrance and exit window He bag: 50um aluminized mylar

Target Holder with positions A and B for Full 208Pb and Empty Frames