Modifications of the design of the final transformer in the FFS to accommodate lower gradients in the final quadrupole triplet (open access)

Modifications of the design of the final transformer in the FFS to accommodate lower gradients in the final quadrupole triplet

The final transformer of the FFS includes the soft bend magnet and two symmetric quadrupole triplets. It ends at the IP. It is a telescopic transformer (meaning that its transfer matrix is diagonal) with a magnification of -1/5 in both planes. In the current design, L*, the distance between the downstream end of Q1 and the IP, is equal to 7.25 feet (2.21 m) and space is provided upstream of Q6 to accommodate a 27 foot long soft bend magnet. Satisfaction of the foregoing conditions leads to field gradients of about 19.8 kg/cm in Q1 and Q3 and 18.1 kg/cm in Q2. It now appears that it would be very difficult to attain such gradients. For practical superconducting quad designs, meaning iron-free, 5 cm bore, two-layer windings and 4.2/sup 0/K, experts have estimated that gradients of at least 14 kg/cm would be reasonable. This raises the question, can the final transformer in the FFS be modified to accommodate gradients of 14 kg/cm or less and if so at what price in performance.
Date: July 29, 1983
Creator: J.J., Murray
Object Type: Report
System: The UNT Digital Library
Cryogenic analytical tools for LHe distribution system design (open access)

Cryogenic analytical tools for LHe distribution system design

The two computer programs presented in this paper are both fundamentally general in that they could be applied to other magnet systems. In addition to MFTF-B analyses, these programs will be used on current and future GDC superconducting magnet projects. Future extended capabilities will include transient heating and flow conditions for THERMOSIPHON and multiple magnet quench features for MAGPRS.
Date: July 29, 1983
Creator: Johnson, R.R.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: JM-50 (open access)

Texas Attorney General Opinion: JM-50

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether a corporation may contribute to a non-profit organization which serves as a research arm of the legislative caucus
Date: July 29, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-51 (open access)

Texas Attorney General Opinion: JM-51

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether a constable may charge the Industrial Accident Board fees for serving subpoenas issued in connection with adiminstrative hearings
Date: July 29, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Register, Volume 8, Number 55, Pages 2831-2958, July 29, 1983 (open access)

Texas Register, Volume 8, Number 55, Pages 2831-2958, July 29, 1983

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: July 29, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History