Skip to main content
placeholder image

Mechanisms of x-ray emission from peeling adhesive tape

Journal Article


Download full-text (Open Access)

Abstract


  • It has previously been reported that x-rays are emitted when adhesive tape is peeled in a vacuum but

    no account of the dependence of the x-ray emission on the pressure of the environment has been

    given to date. In this paper we present detailed experimental data on the number and angular

    distribution of x-ray photons as a function of pressure. We find that x-rays are emitted for pressures

    between p0=10^−3 and p1=10^−2 mBar, with ~10^6 counts/ (cm^2 s) recorded by a 256x256 pixel^2

    silicon array sensor placed 35 mm from the tape. The main role of the tape is found to be the

    build-up of an acceleration potential sufficient to produce x-rays by bremsstrahlung of free electrons

    in a low-pressure gas. The source of the free electrons is the gas. Our model shows that the

    production rate of uncompensated tape charge and absorption of positive ions from the gas define

    p1. The angular distribution of the radiation shows a pressure-independent 20° wide peak in the

    direction perpendicular to electron motion. Ordinary bremsstrahlung cannot describe this peak.

Publication Date


  • 2010

Citation


  • Constable, E., Horvat, J. & Lewis, R. A. (2010). Mechanisms of x-ray emission from peeling adhesive tape. Applied Physics Letters, 97 (13), 131502-1-131502-3.

Scopus Eid


  • 2-s2.0-77957670782

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1559&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/535

Start Page


  • 131502-1

End Page


  • 131502-3

Volume


  • 97

Issue


  • 13

Place Of Publication


  • http://link.aip.org/link/?APL/97/131502

Abstract


  • It has previously been reported that x-rays are emitted when adhesive tape is peeled in a vacuum but

    no account of the dependence of the x-ray emission on the pressure of the environment has been

    given to date. In this paper we present detailed experimental data on the number and angular

    distribution of x-ray photons as a function of pressure. We find that x-rays are emitted for pressures

    between p0=10^−3 and p1=10^−2 mBar, with ~10^6 counts/ (cm^2 s) recorded by a 256x256 pixel^2

    silicon array sensor placed 35 mm from the tape. The main role of the tape is found to be the

    build-up of an acceleration potential sufficient to produce x-rays by bremsstrahlung of free electrons

    in a low-pressure gas. The source of the free electrons is the gas. Our model shows that the

    production rate of uncompensated tape charge and absorption of positive ions from the gas define

    p1. The angular distribution of the radiation shows a pressure-independent 20° wide peak in the

    direction perpendicular to electron motion. Ordinary bremsstrahlung cannot describe this peak.

Publication Date


  • 2010

Citation


  • Constable, E., Horvat, J. & Lewis, R. A. (2010). Mechanisms of x-ray emission from peeling adhesive tape. Applied Physics Letters, 97 (13), 131502-1-131502-3.

Scopus Eid


  • 2-s2.0-77957670782

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1559&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/535

Start Page


  • 131502-1

End Page


  • 131502-3

Volume


  • 97

Issue


  • 13

Place Of Publication


  • http://link.aip.org/link/?APL/97/131502