Research summary, original research, 2019

Relative response of dosimeters to variations in scattered X-ray energy spectra encountered in interventional radiology

Masterson M, Cournane S, McWilliams N, Maguire D, McCavana J, Lucey J. Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 2019

Read the original paper

In plain language

In phantom tests of scattered radiation in interventional radiology, thermoluminescent dosimeters (TLDs) and electronic dosimeters read within 10% across energies. Real-time diode detectors over-read by 10 to 25%, and dedicated eye dosimeters varied by 17% between units, affecting eye dose estimates for the fluoroscopy team.

At a glance

Type of study
Original research, Phantom or simulation study
Who was studied
Phantom or simulation (no people)
Summary based on
the abstract

What it found

  • TLD-100, TLD-100H and electronic personal dosimeters gave a consistent air kerma response across energies.

    Key figures: within 10%

  • Real-time silicon diode detectors over-responded variably across the energies tested.

    Key figures: 10 to 25% over response

  • Landauer dedicated Hp(3) eye dosimeters varied considerably between units under similar conditions.

    Key figures: 17% variation at 50 kVp

  • Scatter energy spectra varied with phantom thickness, spectrometer angulation and filtration.

Limits to keep in mind

Phantom and spectrometer measurements in a single fluoroscopy suite, with no staff wearing dosimeters in clinical use; the abstract gives no number of dosimeters or measurements and no country.

How this summary was made

ORSIF prepared this summary with AI assistance from the abstract of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.

Prepared November 3, 2026.