TY - GEN
T1 - The SNS insulating vacuum design for the superconducting linac
AU - Williams, D.
AU - Geng, X.
AU - Ladd, P.
PY - 2007
Y1 - 2007
N2 - The superconducting linac of the Spallation Neutron Source (SNS) has 23 cryomodules each of which incorporate either 3 or 4 niobium cavities. These cavities are submerged in a bath of liquid helium and maintained at an operating temperature of ∼ 2K. This bath is surrounded by heat shields and a multilayer blanket within the cryomodule shell. The pressure in this area needs to be maintained at <5e-5 torr to limit heat leak due to gas convection. Some cryomodules have developed helium leaks into this vacuum cavity and now need to be actively pumped. This paper provides an overview of the Insulating Vacuum System (IVS) that has been installed for this purpose.
AB - The superconducting linac of the Spallation Neutron Source (SNS) has 23 cryomodules each of which incorporate either 3 or 4 niobium cavities. These cavities are submerged in a bath of liquid helium and maintained at an operating temperature of ∼ 2K. This bath is surrounded by heat shields and a multilayer blanket within the cryomodule shell. The pressure in this area needs to be maintained at <5e-5 torr to limit heat leak due to gas convection. Some cryomodules have developed helium leaks into this vacuum cavity and now need to be actively pumped. This paper provides an overview of the Insulating Vacuum System (IVS) that has been installed for this purpose.
UR - http://www.scopus.com/inward/record.url?scp=51349141890&partnerID=8YFLogxK
U2 - 10.1109/PAC.2007.4440301
DO - 10.1109/PAC.2007.4440301
M3 - Conference contribution
AN - SCOPUS:51349141890
SN - 1424409179
SN - 9781424409174
T3 - Proceedings of the IEEE Particle Accelerator Conference
SP - 629
EP - 631
BT - Proceedings of the IEEE Particle Accelerator Conference, PAC07
T2 - IEEE Particle Accelerator Conference, PAC07
Y2 - 25 June 2007 through 29 June 2007
ER -