Polhe3 Metal Windows

Window Pressure Test Setup

• Investigating the possibility of using Larson glass to metal seals as means to couple metal windows to glass target chamber.
• Pressure test setup was assembled at UVa to test glass to metal seals at typical target cell operating pressures.
• Initial test on a Larson CP-100-T Pyrex glass to Copper metal seal (1-inch O.D.) performed on Nov 16 & 17, 2001. Test piece was pressurized to approximately 10-atm (137psig) of argon for 24hrs. The glass to metal seal did not explode. Although, 10-atm is low (typical target operating pressure is 12-atm to 13-atm). No leak tests on the seal have been performed during this initial pressure test.

UVa pressure test setup for target windows. Larson CP-100-T glass to metal seal attached.

Another view of pressure test setup. Larson CP-100-T glass to metal seal attached.

Side view of pressure test setup, cardboard boxes and crate lid are open.

Top view of pressure test setup with both cardboard boxes closed and weighed down with two half-thick fire bricks on top.

Pressure test setup crate is fully closed.

Pressure test setup blocked with protective wall and caution signs.

High pressure gas delivery plumbing for test setup. Right to left: Regulator tank gauge, output gauge, shutoff valve. Nupro pressure relief valve. Test pressure gauge.

File:Ptest8 cp-100-T 16nov2011.jpg Test pressure gauge P=140psig.

File:Ptest9 cp-100-T 16nov2011.jpg Regulator gauges: Right to left: Tank pressure P=600psig. Output pressure P=137psig.