The Gravity Probe-B star-tracking telescope

Autor: D.E. Davidson, John A. Lipa, K.A. Bower, S. Wang, E. Romero, Paul Ehrensberger, L. W. Huff, Dz-Hung Gwo, M.T. Sullivan, K. Triebes

Publikováno v: Advances in Space Research. 32:1401-1405

We describe the design, development, and testing of a cryogenic star-tracking telescope that provides the inertial pointing reference for the Gravity Probe-B gyroscopes, as established by a distant guide star. The telescope has a modified Cassegraini

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fa6c7ef9437d2c61473f7e1fdb363df9
https://doi.org/10.1016/s0273-1177(03)90353-x

The Gravity Probe B test of general relativity

Autor: C W F Everitt, B Muhlfelder, D B DeBra, B W Parkinson, J P Turneaure, A S Silbergleit, E B Acworth, M Adams, R Adler, W J Bencze, J E Berberian, R J Bernier, K A Bower, R W Brumley, S Buchman, K Burns, B Clarke, J W Conklin, M L Eglington, G Green, G Gutt, D H Gwo, G Hanuschak, X He, M I Heifetz, D N Hipkins, T J Holmes, R A Kahn, G M Keiser, J A Kozaczuk, T Langenstein, J Li, J A Lipa, J M Lockhart, M Luo, I Mandel, F Marcelja, J C Mester, A Ndili, Y Ohshima, J Overduin, M Salomon, D I Santiago, P Shestople, V G Solomonik, K Stahl, M Taber, R A Van Patten, S Wang, J R Wade, P W Worden, N Bartel, L Herman, D E Lebach, M Ratner, R R Ransom, I I Shapiro, H Small, B Stroozas, R Geveden, J H Goebel, J Horack, J Kolodziejczak, A J Lyons, J Olivier, P Peters, M Smith, W Till, L Wooten, W Reeve, M Anderson, N R Bennett, H Dougherty, P Dulgov, D Frank, L W Huff, R Katz, J Kirschenbaum, G Mason, D Murray, R Parmley, M I Ratner, G Reynolds, P Rittmuller, P F Schweiger, S Shehata, K Triebes, J VandenBeukel, R Vassar, T Al-Saud, A Al-Jadaan, H Al-Jibreen, M Al-Meshari, B Al-Suwaidan

Publikováno v: Classical and Quantum Gravity. 32:224001

The Gravity Probe B mission provided two new quantitative tests of Einstein's theory of gravity, general relativity (GR), by cryogenic gyroscopes in Earth's orbit. Data from four gyroscopes gave a geodetic drift-rate of −6601.8 ± 18.3 marc-s yr−

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b98cfe7c86cb8ee004c88ee71d1c8ed6
https://doi.org/10.1088/0264-9381/32/22/224001

Titanium Response to a Nuclear Radiation Environment

Autor: G. Liu, K. Triebes

Titanium response under a nuclear encounter environment was modeled and incorporated into a computer program. Predictions were compared with experimental results under simulated laboratory environments. Excellent agreements were obtained for all test

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b37487aa0aef7194832d16014a1e855
https://doi.org/10.21236/ada090139

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Effect of Static and Dynamic Stress on the Mechanical Loss of Lead Zirconate Titanate Transducer Ceramic

Autor: K. Triebes, R. R. Whymark

Publikováno v: The Journal of the Acoustical Society of America. 45:346-346

The effect of dynamic and static stress on the mechanical loss of a transducer ceramic has been measured. Static stress was applied axially to a radially polarized tube of lead zirconate titanate measuring 2.54 cm long by 2.54 cm o.d. by 0.317 cm wal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::72937c8cbd2afde58ebb79f97b09419b
https://doi.org/10.1121/1.1972366