An SRRC elliptically polarizing undulator prototype to examine mechanical design feasibility and magnetic field performance.

Journal of synchrotron radiation · 1998 · Unclear · Insufficient evidence

← Research stream

UnclearInsufficient evidencePaper 4047

A 1 m long Sasaki-type elliptically polarizing undulator prototype (5.6 cm period) was used to describe magnetic field characteristics under various phase shifts and gap motions. Sources of field errors were analyzed and correction procedures (block position …

Study snapshot

PublicationJournal of synchrotron radiation · 1998

Study typeengineering

Reported directionUnclear

Evidence ratingInsufficient

Abstract

In this work, a 1 m long Sasaki-type elliptically polarizing undulator (EPU) prototype with 5.6 cm period length is used to examine the mechanical design feasibility as well as magnetic field performance. The magnetic field characteristics of the EPU5.6 prototype at various phase shifts and gap motion are described. The field errors from mechanical tolerances, magnet block errors, end field effects and phase/gap motion effects are analysed. The procedures related to correcting the field with the block position tuning, iron shimming and the trim blocks at both ends are outlined.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

mechanical design feasibility
magnetic field performance/characteristics
field errors (mechanical tolerances, magnet block errors, end field effects, phase/gap motion effects)
field correction procedures (block position tuning, iron shimming, trim blocks)

View raw extracted JSON

{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": "elliptically polarizing undulator (synchrotron insertion device)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "mechanical design feasibility",
    "magnetic field performance/characteristics",
    "field errors (mechanical tolerances, magnet block errors, end field effects, phase/gap motion effects)",
    "field correction procedures (block position tuning, iron shimming, trim blocks)"
  ],
  "main_findings": "A 1 m long Sasaki-type elliptically polarizing undulator prototype (5.6 cm period) was used to describe magnetic field characteristics under various phase shifts and gap motions. Sources of field errors were analyzed and correction procedures (block position tuning, iron shimming, trim blocks) were outlined.",
  "effect_direction": "unclear",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "elliptically polarizing undulator",
    "Sasaki-type",
    "magnetic field characteristics",
    "field errors",
    "mechanical tolerances",
    "phase shift",
    "gap motion",
    "shimming",
    "trim blocks",
    "synchrotron radiation"
  ],
  "suggested_hubs": []
}

AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1107/s0909049597015756
PubMed: 15263531

Read the original paper →