JEM-X: The X-ray monitor aboard INTEGRAL

N. Lund, C. Budtz-Jørgensen, N.J. Westergaard, S. Brandt, I.L. Rasmussen, A. Hornstrup, C.A. Oxborrow, J. Chenevez, P.A. Jensen, S. Laursen, K.H. Andersen, P.B. Mogensen, I. Rasmussen, K. Omø, S.M. Pedersen, J. Polny, H. Andersson, T. Andersson, V. Kämäräinen, O. VilhuJ. Huovelin, S. Maisala, M. Morawski, G. Juchnikowski, E. Costa, M. Feroci, A. Rubini, M. Rapisarda, E. Morelli, V. Carassiti, F. Frontera, C. Pelliciari, G. Loffredo, S. Martínez Núñez, V. Reglero, T. Velasco, S. Larsson, R. Svensson, A.A. Zdziarski, A. Castro-Tirado, P. Attina, M. Goria, G. Giulianelli, F. Cordero, M. Rezazad, M. Schmidt, R. Carli, C. Gomez, P.L. Jensen, G. Sarri, A. Tiemon, A. Orr, R. Much, P. Kretschmar, H.W. Schnopper

Research output: Contribution to journalArticle

385 Citations (Scopus)


The JEM-X monitor provides X-ray spectra and imaging with arcminute angular resolution in the 3 to 35 keV band. The good angular resolution and the low energy response of JEM-X plays an important role in the identification of gamma ray sources and in the analysis and scientific interpretation of the combined X-ray and gamma ray data. JEM-X is a coded aperture instrument consisting of two identical, coaligned telescopes. Each of the detectors has a sensitive area of 500 cm2, and views the sky through its own coded aperture mask. The two coded masks are inverted with respect to each other and provides an angular resolution of 3′ across an effective field of view of about 10° diameter.
Original languageEnglish
Pages (from-to)-
JournalAstronomy and Astrophysics
Issue number1
Publication statusPublished - Nov 2003
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Lund, N., Budtz-Jørgensen, C., Westergaard, N. J., Brandt, S., Rasmussen, I. L., Hornstrup, A., ... Schnopper, H. W. (2003). JEM-X: The X-ray monitor aboard INTEGRAL. Astronomy and Astrophysics, 411(1), -.