Fundamental Neutron Physics BL-13

NPDGamma Experiment Equipment Removal

Installation of n3He Experiment

Jack Thomison1/10/14

NPDGamma Experiment Approved March 14, 2012

Approved for Operation with Liquid Hydrogen Target in Final Configuration

Detector Assembly

H2 Fill & Vent Line

2nd Lead Wall

Target Cryostat

Spin Flipper

These Major Components will need to be removed

NPDG to n3He Sequences andMajor Support Requirements

Start Summer Outage

Detailed schedule discussed in Seppo’s presentation

NPDG Outside View1st step is to remove roof plates and panels

NPDG with Plates & Roof Panels Removed

NPDG Interior Components

Detector Assembly

H2 Fill & Vent Line

2nd Lead Wall

Target Cryostat

Spin Flipper

H2 Fill & Vent Line

Next step is to remove H2 Fill & Vent Line

Install H2 Fill/Vent Line – July 2011

Photos from NPDG Installation. Removal will be similar, but in reverse order.

NPDG with Fill/Vent Line Removed

Detector Assembly

2nd Lead Wall

Target Cryostat

Spin Flipper

Next step is to remove Target Cryostat

Target Cryostat

Install Target Vessel & Stand - July 2011

Photos from NPDG Installation. Removal will be similar, but in reverse order.

NPDG with Target Cryostat Removed

Detector Assembly

2nd Lead Wall

Spin Flipper

Next step is to remove the Spin Flipper

Detector Assembly

Spin Flipper

and then the Detector Assembly

Install Spin Flipper – Nov 2010

Photos from NPDG Installation. Removal will be similar, but in reverse order.

Install Detector Array on Stand – Nov 2010

Photos from NPDG Installation. Removal will be similar, but in reverse order.

NPDG, Detector & Spin Flipper Removed2nd Lead Wall

Next step is to remove the 2nd Lead Wall

2nd Lead Wall

Install 2nd Lead Collimator Wall – October 2010

Photos from NPDG Installation. Removal will be similar, but in reverse order.

All NPDG Components Removed

NPDG Coils and Stands will be retained and used for n3He

n3He Experiment

Preliminary model in the SNS Pro/E 3-D Model

Main components in n-3He experiment

Supermirror polarizer

Lead gammashielding

Solenoid

RF Spin Rotator 3He target/detector

4 x preampenclosures

Detailed Design 3-D Model by the Collaboration and will be incorporated into the final SNS Pro/E Model

Conclusion

Questions/Comments?