Preliminary design note for a direct coupled 200,000 amp neutrino horn power supply with energy recovery

PDF Version Also Available for Download.

Description

The availability of high current, (several thousand amperes) silicon controlled rectifiers and high current, low loss capacitors make it practical to design a direct coupled energy discharge power supply for the neutrino horns in the proposed NuMI facility at Fermilab. The neutrino horns require a continuous pulse train of 200,000 A and 1 msec duration at a pulse period of 1.5 seconds. This high current pulse train yields a system load current of about 9,000 A rms. Using a high power coupling transformer between the energy stored in a capacitor bank and the horns is very expensive because the transformer ... continued below

Physical Description

12 p.

Creation Information

Visser, A.T. March 1, 1995.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 14 times . More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

The availability of high current, (several thousand amperes) silicon controlled rectifiers and high current, low loss capacitors make it practical to design a direct coupled energy discharge power supply for the neutrino horns in the proposed NuMI facility at Fermilab. The neutrino horns require a continuous pulse train of 200,000 A and 1 msec duration at a pulse period of 1.5 seconds. This high current pulse train yields a system load current of about 9,000 A rms. Using a high power coupling transformer between the energy stored in a capacitor bank and the horns is very expensive because the transformer secondary winding would have to be rated for 9,000 A rms at about 1,400 Vpk. The transformer would also add leakage inductance to the discharge circuit, take up a substantial amount of floor space and make stored energy recovery from the horns less effective or maybe even impractical. The transformer would need a reset winding to remove the high remnant magnet field in the transformer steel which is caused by the unipolar discharge pulses. A coupling transformer is practical for high voltage loads, but the horns operate at a relatively low voltage of about 1,400 V, which makes direct coupling very attractive. This note describes a preliminary design for a direct coupled system. From the design notes the authors can conclude that direct coupling is economical, practical, relatively simple, can use energy recovery and does not require materials or equipment that is hard to obtain. The charging power supply could be two standard (Fermilab) 240 kW beamline power supplies connected in series and grounded at the midpoint. The capacitor bank, switches, transmission line and controls can be most economically assembled in house. They may conclude that it is desirable to build a direct coupled neutrino horn power supply system and to connect both horns in series.

Physical Description

12 p.

Notes

INIS; OSTI as DE95010356

Source

  • Other Information: PBD: Mar 1995

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Other: DE95010356
  • Report No.: FNAL-TM--1924
  • Grant Number: AC02-76CH03000
  • DOI: 10.2172/61160 | External Link
  • Office of Scientific & Technical Information Report Number: 61160
  • Archival Resource Key: ark:/67531/metadc694693

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • March 1, 1995

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • April 1, 2016, 4:30 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 14

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Visser, A.T. Preliminary design note for a direct coupled 200,000 amp neutrino horn power supply with energy recovery, report, March 1, 1995; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc694693/: accessed August 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.