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Princeton/BABAR Drift Chamber Technical Notes


Stew Smith with the completed rear endplate at Brenner Tool and Die (Dec. 1996)

See Links at end
annealed.eps: Plot of creep of annealed CFW wire after 9 days, (20kB, Jan. 16, 1997)
creep80.eps: Plot of creep of 80-micron CFW wire delivered in 12/96, (40kB, Jan. 16, 1997)
creep120.eps: Plot of creep of 120-micron CFW wire delivered in 12/96, (45kB, Jan. 16, 1997)
Text file: Summary of Drift Chamber Wire Issues, K.T. McDonald (8kB, Jan. 16, 1997)
TNDC-97-55: Plots of Drift Chamber Wire Creep, R. Klemmer, C. Lu, K.T. McDonald and W.R. Sands (230kB, Jan. 9, 1997)
JPEG photo of Stew Smith with the completed rear endplate (93kB, Jan. 2, 1997)
JPEG photo of the front endplate on the CMM, with holes marked for remeasurement (205kB, Jan. 2, 1997)
JPEG photo of the rear endplate on the CMM (87kB, Jan. 2, 1997)
TNDC-97-54: CMM Results from the Drift Chamber Endplates, K.T. McDonald and W.R. Sands (7.3MB, Jan. 8, 1997)
front_clear.dat: (60kB, Jan. 8, 1997)
front_field.dat: (125kB, Jan. 8, 1997)
front_sense1.dat: (1.4MB, Jan. 8, 1997)
front_sense2.dat: (1.4MB, Jan. 8, 1997)
rear_clear.dat: (60kB, Jan. 8, 1997)
rear_field.dat: (125kB, Jan. 8, 1997)
rear_sense1.dat: (1.4MB, Jan. 8, 1997)
rear_sense2.dat: (1.4MB, Jan. 8, 1997)
JPEG photo of the rear endplate in the shipping box (100kB, Dec. 23, 1996)
JPEG photo of the CMM probe and the rear endplate (201kB, Dec. 23, 1996)
JPEG photo of the rear endplate on the CMM (67kB, Dec. 23, 1996)
TNDC-96-53: Choice of Drift Chamber Sense Wire, C. Lu, K.T. McDonald and A.J.S. Smith (290kB, Dec. 16, 1996)
JPEG photo of tapping of the rear endplate (70kB, Dec. 2, 1996)
JPEG photo of the rear endplate with spotting holes prior to tapping (80kB, Dec. 2, 1996)
TNDC-96-52: Update on Wire Quality Control, C. Lu and K.T. McDonald (190kB, Dec. 10, 1996)
JPEG photo of Dan Peterson of Cornell inspecting the front endplate (310kB, Nov. 25, 1996)
JPEG photo of the front endplate after drilling of all feedthrough holes. Two Go-NoGo gauges are used to check that the holes are within the specified range of diameters (90kB, Nov. 25, 1996)
JPEG photo of the front endplate, drilling almost complete (400kB, Nov. 21, 1996)
JPEG photo of the Brenner test plate (240kB, Nov. 18, 1996)
TNDC-96-51: Results from the Brenner Test Plate, K.T. McDonald and W.R. Sands (940kB, Nov. 22, 1996)
JPEG photo of machining of the front endplate, with S. Smith (220kB, Nov. 12, 1996)
JPEG photo of the front endplate after machining (before drilling) (208kB, Nov. 12, 1996)
JPEG photo of the backing plate for drilling of the endplates. The plate is mounted on the rotary table seen in the foreground; the drilling is performed from the side of the plate not visible, (383kB, Nov. 12, 1996)
TNDC-96-50: Plots of Drift Chamber Wire Creep, R. Klemmer, C. Lu and K.T. McDonald (143kB, Nov. 18, 1996)
JPEG photo of Bill Sands and Stew Smith with the front endplate being machined at Brenner, (143kB, Nov. 12, 1996)
TNDC-96-49: Finite Element Analysis of Endplates Coupled by Inner and Outer Cylinders, C. Lu and K.T. McDonald (2.3MB, Nov. 5, 1996)
JPEG photo of machining of a 1/16 endplate sector for the mockup, (200kB, Oct. 25, 1996)
Wire Procurement and Quality Control: Transparencies, C. Lu and K.T. McDonald (1.9MB, Oct. 20, 1996)
TNDC-96-48: Analytic Stress Analysis of Endplates Coupled by Inner and Outer Cylinders, K.T. McDonald (40kB, Sept. 25, 1996)
TNDC-96-47: Procurement of Gold-Plated Aluminum Wire for the BABAR Drift Chamber, K.T. McDonald (10kB, Sept. 19, 1996)
case2_chamber.for: Program to calculate stresses in a chamber with two endplates coupled by inner and outer cylinders,, K.T. McDonald (20kB, Sept. 11, 1996)
TNDC-96-46: Drift Chamber Wire Quality Control: Preliminary Test Results, C. Lu, K.T. McDonald (4.1MB, Aug. 22, 1996)
TNDC-96-45: Proposal for a Drift Chamber Prototype III, K.T. McDonald, A.J.S. Smith (1.5MB, July 2, 1996)
Drift Chamber R&D at Princeton: Transparencies, K.T. McDonald (1.8MB, June 24, 1996)
Wire Procurement and Quality Control: Transparencies, K.T. McDonald (6.8MB, June 24, 1996)
fifo.for: Program to calculate deadtime in a FIFO, K.T. McDonald (2kB, June 14, 1996)
TNDC-96-44: Deadtime When Using a FIFO Buffer, K.T. McDonald (140kB, June 10, 1996)
coords.for: Version of Boyarski's program that generates AutoLISP output (link with Boyarski's routine HEX2), K.T. McDonald (6kB, June 7, 1996)
TNDC-96-43: CP Violation in the B-Meson System, K.T. McDonald (1.2MB, May 1, 1996)
prestress.for: Program to calculate overtensioning of wires, K.T. McDonald (20kB, May 21, 1996)
case2_step.for: Program to perform an analytic stress analysis of a stepped endplate, K.T. McDonald (20kB, May 20, 1996)
TNDC-96-42: Overtensioning of Wires as an Alternative to Prestressing the Drift Chamber Endplate, K.T. McDonald (70kB, May 21, 1996, revised Sept. 23, 1996)
TNDC-96-41: Analytic Stress Analysis of a Stepped Endplate, K.T. McDonald (83kB, May 20, 1996)
TNDC-96-40: Visit with Dan Peterson of Cornell, C. Lu, K.T. McDonald, W.R. Sands and A.J.S. Smith (440kB, May 2, 1996)
TNDC-96-39: A Device for Quick and Reliable Measurement of Wire Tension, M.R. Convery (273 kB, Apr. 29, 1996)
TNDC-96-38: The Effect of the Drift Chamber Outer Cylinder On the DIRC Resolution, K.T. McDonald and E.J. Prebys (350 kB, Apr. 24, 1996)
TNDC-96-37: A Preamp-ADC Interface Amplifier for the BABAR Drift Chamber, R. Wixted and K.T. McDonald (93kB, Apr. 23, 1996)
koords.for: Fortran program for endplate wire layout, modified by K.T. McDonald (21kB, Apr. 22, 1996)
TNDC-96-36: Minor Adjustments in HEX2 Wire Positions, K.T. McDonald (2.6MB, Apr. 22, 1996)
TNDC-96-35: Effect of a Step in the Front Endplate, C. Lu and K.T. McDonald (1.8MB, Apr. 19, 1996)
TNDC-96-34: Second Look at the Al/Au Wire, C. Lu and K.T. McDonald (1.5MB, Apr, 15, 1996)
TNDC-96-33: The Endplate/Support-Tube Joints, C. Lu, K.T. McDonald and W.R. Sands (2.4MB, Apr. 14, 1996)
TNDC-96-28: Deep Hole Drilling for the Rear Endplate, K.T. McDonald (3.5MB, Apr. 13, 1996)
TNDC-96-27: First Look at Al/Au and Au/W Wire, C. Lu and K.T. McDonald (4.5MB, Apr. 11, 1996)
Endplate Options: Transparencies for a talk at the Endplate Technology Review, K.T. McDonald (1.8MB, Mar. 25, 1996)
TNDC-96-25: Finite Element Analysis of Shaped Front Endplates for the BABAR Drift Chamber, C. Lu and K.T. McDonald (660kB, Mar. 22, 1996)
TNDC-96-24: Options for the BABAR Drift Chamber Front Endplate, K.T. McDonald (80kB, Mar. 23, 1996)
TNDC-96-23: An Analysis of Gas Flow in the BABAR Drift Chamber, K.T. McDonald (160kB, Mar. 5, 1996)
TNDC-96-22: Endplates under Pure Tension or Compression, K.T. McDonald (90kB, Feb. 28, 1996)
TNDC-96-21: Natural Layout of Carbon Fiber on Cones and Bicones, K.T. McDonald (83kB, Feb. 28, 1996)
Remarks: Transparencies for a drift chamber group meeting, K.T. McDonald (2.0MB, Feb. 22, 1996)
Princeton Resources: Transparencies for the Princeton site visit, K.T. McDonald (100kB, Feb. 13, 1996)
TNDC-96-20: Should the Drift Chamber Inner Wall be Load Bearing? K.T. McDonald (2.2MB, Feb. 7, 1996)
HEP/92-09: Six Ways to Measure CP-Violating Phases in B Decays, K.T. McDonald (3.0MB, Sept. 20, 1992)
HEP/92-04: Maximum Likelihood Analysis of CP-Violating Asymmetries, K.T. McDonald (180kB, Sept. 4, 1992)

Links

Princeton U. High Energy Physics Group

BaBar Home Page

BaBar Drift Chamber

BaBar Drift Chamber Technical Notes

Kirk T. McDonald
mcdonald@puphep.princeton.edu
Tel: +1-609-258-6608
Fax: +1-609-258-6360