A measurement of the holographic minimum-observable beam branching ratio in the fermilab 15-foot bubble chamber

Autor: T. K. Chatterjee, M. D. Jones, J. Lys, H. H. Bingham, H. Foeth, E. Clayton, R. H. Milburn, A. Napier, Phillip Allport, S. Willocq, M. Lauko, E.L. Koller, Pierre Marage, R. J. Krawiec, Patrick A. Naylor, J.R. Campbell, E. A. De Wolf, L. Verluyten, W.B. Fretter, S. K. Badyal, H. Akbari, H. Bjelkhagen, R. J. Cence, R. A. Burnstein, G. T. Jones, M. Neveu, Devanand, V.K. Gupta, M. M. Mobayyen, J. M. Kohli, P.F. Jacques, R.J. Plano, P.J.W. Faulkner, D. B. Miller, W. Smart, P. E. Stamer, I. S. Mittra, J. P. Baton, J. Hawkins, G. P. Yost, G. Harigel, Sanjeev Singh Sambyal, K. Geissler, D. DeProspo, P. H. Kasper, G. Corrigan, W. Williams, Vincent Z. Peterson, D. Passmore, N. K. Rao, H.A. Rubin, D. R. O. Morrison, Madan M. Aggarwal, S. Sewell, J. Schneps, F. A. Harris, Jasvinder A. Singh, T. Kafka, E. B. Brucker, L. Voyvodic, N. Schmitz, Jean Sacton, M.W. Peters, Ch. Coutures, M. Kalelkar, K. Varvell, M. Barth, R.L. Sekulin, S. Wainstein, J. Hanlon, J. Moreels, H.C. Ballagh, R. Naon, M. A. Jabiol, G. Myatt, M. Aderholz, H. Wachsmuth

Publikováno v: Nuclear instruments and methods in physics research : A: accelerators, spectrometers, detectors and associated equipment

Holography has been used successfully in combination with conventional optics for the first time in a large cryogenic bubble chamber, the 15-Foot Bubble Chamber at Fermilab, during a physics run. The innovative system combined the reference beam with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73765583ef7d0186f769bcdfc9e32daa
https://hdl.handle.net/10067/242060151162165141

Holographic time-average vibration study of a structure dynamic model of an airplane fin

Autor: H. Bjelkhagen

Publikováno v: Optics & Laser Technology. 6:117-123

A structure dynamic model of an airplane fin built by Saab-Scania, Sweden, has been vibration tested by the holographic time-average technique. The investigation was performed at Volvo-Flygmotor, Sweden, in their vibration laboratory. Holograms were

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c87e043098f015a0a763571c0f90ce6e
https://doi.org/10.1016/0030-3992(74)90075-9

Simplified interpretation of interference fringes obtained by time-average holography

Autor: H. Bjelkhagen

Publikováno v: Optics & Laser Technology. 5:172-175

A method of evaluating time-average holograms which gives the vibration amplitudes of an object is described. The method is based on the holodiagram, from which a value of sensitivity ( k value) is obtained. For sinusoidal vibrations of an object, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::609ea366bf817d3fb5bf3004ffaafc63
https://doi.org/10.1016/0030-3992(73)90026-1

Holographic recording of cosmic ray tracks in BEBC

Autor: M. Hibbs, C. Baltay, E. B. Brucker, R. J. Cence, F. Pouyat, H. Bjelkhagen, W. Seidl, A. C. Schaffer, T.J. Hart, M. Bregman, G. Harigel, F. Eisler

We report on a successful test of holography in the Big European Bubble Chamber (BEBC) at CERN, which was filled with a heavy neon—hydrogen mixture. During the test of a modified in-line scheme we photographed bubble tracks longer than 1 m, which w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca076d24bb6281733377a8f25f7266a2
http://cds.cern.ch/record/152975

A CLINICALLY APPLICABLE LASER LUMINESCENCE METHOD FOR THE EARLY DETECTION OF DENTAL CARIES

Autor: H. Bjelkhagen, F. Sundstrom

Publikováno v: Conference on Lasers and Electro-Optics.

I is well-known that dental enamel and dentine luminesce when exited by light in the ultraviolet and short-wave visible range and that this luminescence is different in intact and carious tooth substance. This effect has been proposed as a means for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0779a9da5177230e4af20a44e1dd8af8
https://doi.org/10.1364/cleo.1981.fi5