Application of the Recent ARF1 Calibration Measurements to the Pbar RF Curve Loading Console Application (P2)

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Description

The P2 console application (Antiproton Source RF Files) calculates frequency and voltage curves from a sequence of command statements input by the user. P2 initially calculates these curves in terms of the actual frequencies and voltages required on the RF cavity as a function of time. These curves are then converted to the appropriate low-level drive voltages that will cause the RF system high-level electronics to generate the required frequency and voltage ramps. The low-level drive ramps are then downloaded into CAMAC ramp cards. In order to convert the required cavity voltage and frequency into the correct drive voltages P2 ... continued below

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6 pages

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Werkema, Steve April 21, 2001.

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Description

The P2 console application (Antiproton Source RF Files) calculates frequency and voltage curves from a sequence of command statements input by the user. P2 initially calculates these curves in terms of the actual frequencies and voltages required on the RF cavity as a function of time. These curves are then converted to the appropriate low-level drive voltages that will cause the RF system high-level electronics to generate the required frequency and voltage ramps. The low-level drive ramps are then downloaded into CAMAC ramp cards. In order to convert the required cavity voltage and frequency into the correct drive voltages P2 uses a set of constants that determined from calibration measurements of the various Antiproton Source RF systems. These constants are editable from the P2 constants window. The P2 constants at the time of this writing are shown in Figure 1. The validity of these constants determines the extent to which P2 able to translate the user's commands into the actual voltages and frequencies that appear on the RF cavity. A comparison of the 4/18/2001 calibration of ARF1 with that presently assumed by P2 shows a large discrepancy in both the frequency constants and the voltage constants. This report documents the determination of the P2 ARF1 constants from the calibration measurements that were made on April 18, 2001. In addition, this report will compare the measured response of ARF1 to that derived from the present P2 constants. This comparison will be used to explain some resent observations of ARF1 behavior.

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6 pages

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  • Report No.: FERMILAB-PBAR-NOTE-660
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/984574 | External Link
  • Office of Scientific & Technical Information Report Number: 984574
  • Archival Resource Key: ark:/67531/metadc1014217

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • April 21, 2001

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

Description Last Updated

  • Nov. 3, 2017, 9:27 p.m.

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Werkema, Steve. Application of the Recent ARF1 Calibration Measurements to the Pbar RF Curve Loading Console Application (P2), report, April 21, 2001; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc1014217/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.