1. Fundamental Neutron Physics BL-13
NPDGamma Experiment Equipment Removal
Installation of n3He Experiment
Jack Thomison
1/10/14

2. NPDGamma Experiment Approved March 14, 2012
Approved for Operation with Liquid Hydrogen Target in Final Configuration
2nd Lead Wall
Spin Flipper
H2 Fill & Vent Line
Detector Assembly
Target Cryostat
These Major Components will need to be removed

3. NPDG to n3He Sequences and Major Support Requirements
Start Summer Outage
Detailed schedule discussed in Seppo’s presentation

4. NPDG Outside View
1st step is to remove roof plates and panels

5. NPDG with Plates & Roof Panels Removed

6. NPDG Interior Components
2nd Lead Wall
Spin Flipper
Detector Assembly
Target Cryostat
H2 Fill & Vent Line
H2 Fill & Vent Line
Next step is to remove H2 Fill & Vent Line

7. Install H2 Fill/Vent Line – July 2011
Photos from NPDG Installation. Removal will be similar, but in reverse order.

8. NPDG with Fill/Vent Line Removed
Spin Flipper
2nd Lead Wall
Detector Assembly
Target Cryostat
Target Cryostat
Next step is to remove Target Cryostat

9. Install Target Vessel & Stand - July 2011
Photos from NPDG Installation. Removal will be similar, but in reverse order.

10. NPDG with Target Cryostat Removed
Spin Flipper
Spin Flipper
2nd Lead Wall
Detector Assembly
Detector Assembly
Next step is to remove the Spin Flipper
and then the Detector Assembly

11. Install Spin Flipper – Nov 2010
Photos from NPDG Installation. Removal will be similar, but in reverse order.

12. Install Detector Array on Stand – Nov 2010
Photos from NPDG Installation. Removal will be similar, but in reverse order.

13. NPDG, Detector & Spin Flipper Removed
2nd Lead Wall
2nd Lead Wall
Next step is to remove the 2nd Lead Wall

14. Install 2nd Lead Collimator Wall – October 2010
Photos from NPDG Installation. Removal will be similar, but in reverse order.

15. All NPDG Components Removed
NPDG Coils and Stands will be retained and used for n3He

16. n3He Experiment
Preliminary model in the SNS Pro/E 3-D Model

17. Main components in n-3He experiment
3He target/
detector
RF Spin Rotator
Lead gamma
shielding
4 x preamp
enclosures
Supermirror
polarizer
Solenoid
Detailed Design 3-D Model by the Collaboration and will be incorporated into the final SNS Pro/E Model

18. Conclusion
Questions/Comments?