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Kimo M. Welch

1) Welch, Kimo M., “The Hydrogen Pumping Speed of Sputter-Ion Pumps,” Invited talk, 52 nd AVS International Symposium, Oct. 30, 2005.
2) Welch, Kimo M., Capture Pumping Technology , 2 nd Edition (Elsevier Science, Amsterdam , 2001), pp. 361.
3) Forty-nine column articles January 2000 – January 2007, in magazine Vacuum Technology and Coating .
4) “Recommended Practices for Measuring the Performance and Characteristics of Closed-loop Gaseous Helium Cryopumps @ , J. Vac. Sci. Technol. A 17(5), Sept/Oct 1999.
5) A A Highly Simplified and Reliable Means of Regenerating Closed-Loop Gaseous Helium Cryopumps @ , presented at AVS International Symposium, Seattle , October 1999.
6) “Enhanced Ignition of Cold Cathode Gauges Through the Use of Radioactive Isotopes, presented at the 42nd National AVS Symposium, Minneapolis , Oct. 1995, J. Vac. Sci. Technol. A 14(3), May/June 1996.
7) “Development of the Vacuum Systems of AGS-RHIC @ , Vacuum 46(8-10), 1995.
8) “The RHIC Vacuum Systems, Invited talk at the National AVS Symposium, October 1995 (due to time constraints, was not published).
9) “The Acquisition of Reliable Vacuum Hardware @ , Invited talk presented at the 13th International Vacuum Congress, & 9th International Conference on Solid Surfaces, Yokohama , Japan , September 1995, Vacuum 47(6-8), 1996.
10) A Some important developments in capture pumping technology in the last 40 years @ , Invited talk at 40th Nat. AVS Symposium; J. Vac. Sci. Technol. A 12(4) Jul/Aug 1994.
11) A Pumping of helium and hydrogen by sputter-ion pumps. II. Hydrogen Pumping @ , J. Vac. Sci. Technol. A 12(3) May/June 1994.
12) Hobson, J.P, Welch, K.M., A Time-dependent helium and hydrogen pressure profiles in a long, cryogenically cooled tube, pumped at periodic intervals @ , Invited talk at 40th Nat. AVS Symposium; J. Vac. Sci. Technol. A 11(4), Jul/Aug 1999.
13) “Pumping of helium and hydrogen by sputter-ion pumps. I. Helium Pumping, @ J. Vac. Sci. Technol. A 11(4) Jul/Aug 1993.
14) “RHIC Warm-bore Systems, @ BNL-670642 Informal Report, July 1994.
15) Welch, K.M., Capture Pumping Technology, An Introduction , (Pergamon Press, Oxford, 1991), p359.
16) "Pumping Mechanisms in Sputter-Ion Pumps, Low Pressure Operation" presented at the IEEE 1991 Particle Accelerator Conference, May 6-9, 1991.
17) "Metal and Elastomer Seal Tests for Accelerator Applications" presented at the 11th Inter. Vac. Cong., Köln (1989), Vacuum, 42 (7-9), 1924 (1990).
18) "Beam Losses on Si + 12 Injection Due to Ambient Gases and Contrived CO 2 Pressures in the AGS," AGS Machine Studies Report No. 259, August 1989.
19) "Refurbishment of the Vacuum System of the Alternating Gradient Synchrotron," presented at the 11th Inter. Vac. Cong., Köln (1989).
20) "The Stretcher Vacuum System," AGS/AD/Tech. Note No. 315, February 1989.
21) "A Review of All-Metal Sealing Technology," Inter. Symp. on EBIS, Upton NY, 1988.
22) "Comments on the AGS Vacuum System," AGS Tech. Note, October 1987.
23) "Cryogenic Pump With Radiation Shield," U.S. Patent No. 4,336,690, June 29, 1982.
24) "Cryogenic Pump," U.S. Patent No. 4,311,018, Jan. 19, 1982.
25) "Cryogenic Device For Restricting the Pumping Speed of Selected Gases," U.S. Patent No. 4,285,710, Aug. 25, 1981.
26) "Cryogenic Apparatus With Replaceable Pumping Surface Elements," U.S. Patent No. 4,295,338, Oct. 20, 1981.
27) An Introduction to the Elements of Sputter-ion and Titanium Sublimation Pumping , (Edited and Published by Kimo M. Welch; Second Edition, copyrighted 1981; in conjunction with the American Vacuum Society; 275 pages).
28) An Introduction to the Elements of Cryopumping , (Edited and Published by Kimo M. Welch; Second Edition, copyrighted 1980; in conjunction with the American Vacuum Society; 185 pages).
29) "The Elements of Cryopumping," Industrial Research/Development, March 1978.
30) "Thin Film Deposition by Electric and Magnetic Crossed-Field Diode Sputtering," U.S. Patent No. 4,209,552, June 24, 1980.
31) "Titanium Nitride Thin Films for Minimizing Multipactoring," U.S. Patent No. 4,151,325, April 24, 1979.
32) "New Development in Sputter-Ion Pump Configurations," J. Vac. Sci. Technol., 13 , 498 (1976).
33) "A Confined Field Sputter-Ion Pump of Modular Construction," Patent No. 3,994,625, Nov. 30, 1976.
34) "Dual Chamber, High Sensitivity Gas Sensor and Pump," U.S. Patent No. 4,047,102, Sept. 6, 1977.
35) "Thin Film Deposition by Electric and Magnetic Crossed-Field Diode Sputtering," U.S. Patent No. 4,006,073, Feb. 1, 1977.
36) "New Materials and Technology for the Suppression of RF Multipactor," Proc. IEEE International Electron Devices Meeting, Washington , D.C. , Dec. 1974, 585 c.f.
37) "Microwave Storage Ring Tests of High Power S-Band Klystron Windows Coated with Cr 2 O 3 Films for the Purpose of Suppressing Multipactor," Report No. SLAC-TN-74-10, Stanford Linear Accelerator Center (1974).
38) "Low Pressure Crossed Field Vacuum Sputtering of Thin Films for Multipactor Suppression Using a Simple Diode Array," SLAC Technical Report, SLAC-PUB-1472, Stanford Linear Accelerator Center (1974).
39) "New Materials and Technology for Suppressing Multipactor in High Power Microwave Windows," SLAC Report No. 174, SLAC, 47 pg.
40) "Design Report: The Proposed Recirculating Linear Accelerator at SLAC (RLA), Section V. Vacuum System," SLAC Report No. 165, (1974).
41) "The Pressure Profile in a Long Outgassing Vacuum Tube," Vacuum 23(8), 271 (1973).
42) "A Simple Method of Calculating the Effectiveness of High Temperature Radiation Heat Shields," J. Vac. Sci. Technol., 10(6), 1140 (1973).
43) "Properties and Applications of Low-Pressure Penning Discharges," Stanford University Special Studies Course EE 391; with direction of Dr. Sidney A. Self, (May 1973), 83 pg.
44) "Evaluation of Gas Aspiration and Bellows Roughing Pumps," Research/Development, (Feb. 1973).
45) "A Simple Method of Calculating the Effectiveness of High Temperature Radiation Shields, and its Application in the Construction of a High Temperature Vacuum Furnace," Report No. SLAC-PUB- 1124, (1972).
46) "Diode Sputter-Ion Pump Speed for Hydrogen and Nitrogen as a Function of Axial and Transverse Magnetic Fields up to 1.2 Tesla," Report No. SLAC-TN-72-10, SLAC (1972).
47) "Comments on RF Induction, Electron Bombardment and Indirect Resistance Heated Furnaces for High Temperature Applications," presented to SLAC Superconducting Journal Club, Stanford University , April 1970. Also, presented as guest speaker and consultant at Institut Fur Experimentelle Kernphysic, Univeritat Karlsruhe , Germany (Feb. 1971).
48) "A New Dry Roughing Pump," Report No. SLAC-TN-70-36, SLAC (1970).
49) "Sensitive Burst Diaphragm for Relief of Overpressures," an all metal burst diaphragm. U.S. Patent No. 3,515,309.
50) "Calibration of a Quadrupole Gas Analyzer Using a Reference Gas," presented at the 16th National; Symposium of the American Vacuum Society, (Oct. 1969).
51) "Feasibility Study for a Two-Mile Superconducting Accelerator, Section VJ: Accelerator Components, Vacuum," Stanford Linear Accelerator Center (1969).
52) "Fine Adjustment Diaphragms for Matching and Phasing of Superconducting Rings," Report No. SLAC-TN-69-15, SLAC (1969).
53) "A Simple Low-Pressure Burst Diaphragm for Ultrahigh Vacuum Applications," J. Vac. Sci. Technol., 5(6), 206 (1968).
54) "Low Leakage Confined Seal," an all-metal seal for large in-line gate valves. U.S. Patent No. 3,416,768, Dec. 17, 1968.
55) "Brief Comments on Noise Measurement Findings on Large Ionic Vacuum Pumps," Report No. SLAC-TN-67-15, SLAC (1967).
56) "All-Metal Indium Valve Seat for Large Diameter In-Line Gate Valves," J. Vac. Sci. Technol., 4(3), 135 (1967).
57) "Performance of a Penning Gauge in High Gamma Radiation Fields," Report No. SLAC-TN-66-34, SLAC (1966).
58) "Evaluation of Double Vacuum Bakeout Techniques in Processing Active Microwave Devices," Raytheon Company, Spencer Laboratory, Special Studies Report No. PT-28, 117 pg. (Aug. 1961).
59) "Gauge Wheel for Two-Way Plow," U.S. Patent No. 2,921,639, Jan. 19, 1960.
60) "Disk Harrow Torsion Control Apparatus," U.S. Patent No. 2,860,471, Nov. 18, 1958.
61) "Ground Wheel for Implement," U.S. Patent No. 2,923,362, Feb. 2, 1960.

*Excludes several dozen publications in which Welch was not the principal author, and publications in trade journals.


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