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47 results on '"Byrd, J.M."'

1. Enabling instrumentation and technology for 21st century light sources

Author

Byrd, J.M., Byrd, J.M., Byrd, J.M., and Byrd, J.M.

Abstract

We present the summary from the Accelerator Instrumentation and Technology working group, one of the five working groups that participated in the BES-sponsored Workshop on Accelerator Physics of Future Light Sources held in Gaithersburg, MD September 15-17, 2009. We describe progress and potential in three areas: attosecond instrumentation, photon detectors for user experiments, and insertion devices.

Published
2010

2. Enabling instrumentation and technology for 21st century light sources

Author

Byrd, J.M., Byrd, J.M., Byrd, J.M., and Byrd, J.M.

Abstract

We present the summary from the Accelerator Instrumentation and Technology working group, one of the five working groups that participated in the BES-sponsored Workshop on Accelerator Physics of Future Light Sources held in Gaithersburg, MD September 15-17, 2009. We describe progress and potential in three areas: attosecond instrumentation, photon detectors for user experiments, and insertion devices.

Published
2010

6. Optimizing ring-based CSR sources

Author

Byrd, J.M., Byrd, J.M., De Santis, S., Hao, Z., Martin, M.C., Munson, D.V., Li, D., Nis himura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Schoenlein, R., Jung, J.Y., Venturini, M., Wan, W., Zholents, A.A., Zolotorev, M., Byrd, J.M., Byrd, J.M., De Santis, S., Hao, Z., Martin, M.C., Munson, D.V., Li, D., Nis himura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Schoenlein, R., Jung, J.Y., Venturini, M., Wan, W., Zholents, A.A., and Zolotorev, M.

Published
2004

8. Optimizing ring-based CSR sources

Author

Byrd, J.M., Byrd, J.M., De Santis, S., Hao, Z., Martin, M.C., Munson, D.V., Li, D., Nis himura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Schoenlein, R., Jung, J.Y., Venturini, M., Wan, W., Zholents, A.A., Zolotorev, M., Byrd, J.M., Byrd, J.M., De Santis, S., Hao, Z., Martin, M.C., Munson, D.V., Li, D., Nis himura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Schoenlein, R., Jung, J.Y., Venturini, M., Wan, W., Zholents, A.A., and Zolotorev, M.

Published
2004

11. CIRCE: A dedicated storage ring for coherent THz synchrotron radiation

Author

Byrd, J.M., Byrd, J.M., Martin, Michael C., McKinney, W.R., Munson, D.V., Nishimura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Thur, W.G., Jung, J.Y., Wan, W., Byrd, J.M., Byrd, J.M., Martin, Michael C., McKinney, W.R., Munson, D.V., Nishimura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Thur, W.G., Jung, J.Y., and Wan, W.

Abstract

We present the concepts for an electron storage ring dedicated to and optimized for the production of stable coherent synchrotron radiation (CSR) over the far-infrared terahertz wavelength range from 200 mm to about one cm. CIRCE (Coherent InfraRed CEnter) will be a 66 m circumference ring located on top of the ALS booster synchrotron shielding tunnel and using the existing ALS injector. This location provides enough floor space for both the CIRCE ring, its required shielding, and numerous beamlines. We briefly outline a model for CSR emission in which a static bunch distortion induced by the synchrotron radiation field is used to significantly extend the stable CSR emission towards higher frequencies. This model has been verified with experimental CSR results. We present the calculated CIRCE photon flux where a gain of 6 - 9 orders of magnitude is shown compared to existing far-IR sources. Additionally, the particular design of the dipole vacuum chamber has been optimized to allow an excellent transmission of these far-infrared wavelengths. We believe that the CIRCE source can be constructed for a modest cost.

Published
2003

12. CIRCE: A dedicated storage ring for coherent THz synchrotron radiation

Author

Byrd, J.M., Byrd, J.M., Martin, Michael C., McKinney, W.R., Munson, D.V., Nishimura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Thur, W.G., Jung, J.Y., Wan, W., Byrd, J.M., Byrd, J.M., Martin, Michael C., McKinney, W.R., Munson, D.V., Nishimura, H., Robin, D.S., Sannibale, F., Schlueter, R.D., Thur, W.G., Jung, J.Y., and Wan, W.

Abstract

We present the concepts for an electron storage ring dedicated to and optimized for the production of stable coherent synchrotron radiation (CSR) over the far-infrared terahertz wavelength range from 200 mm to about one cm. CIRCE (Coherent InfraRed CEnter) will be a 66 m circumference ring located on top of the ALS booster synchrotron shielding tunnel and using the existing ALS injector. This location provides enough floor space for both the CIRCE ring, its required shielding, and numerous beamlines. We briefly outline a model for CSR emission in which a static bunch distortion induced by the synchrotron radiation field is used to significantly extend the stable CSR emission towards higher frequencies. This model has been verified with experimental CSR results. We present the calculated CIRCE photon flux where a gain of 6 - 9 orders of magnitude is shown compared to existing far-IR sources. Additionally, the particular design of the dipole vacuum chamber has been optimized to allow an excellent transmission of these far-infrared wavelengths. We believe that the CIRCE source can be constructed for a modest cost.

Published
2003

17. Nonlinear longitudinal dynamics studies at the ALS

Author

Byrd, J.M., Byrd, J.M., Cheng, W.-H., De Santis, S., Li, D., Stupakov, G., Zimmermann, F., Byrd, J.M., Byrd, J.M., Cheng, W.-H., De Santis, S., Li, D., Stupakov, G., and Zimmermann, F.

Published
1999

18. Nonlinear longitudinal dynamics studies at the ALS

Author

Byrd, J.M., Byrd, J.M., Cheng, W.-H., De Santis, S., Li, D., Stupakov, G., Zimmermann, F., Byrd, J.M., Byrd, J.M., Cheng, W.-H., De Santis, S., Li, D., Stupakov, G., and Zimmermann, F.

Published
1999

34. Rad-hard Luminosity Monitoring for the LHC

Author

Beche, J.F., Beche, J.F., Byrd, J.M., Chow, K., Denes, P., Ghiorso, W., Matis, H.S., Monroy, M.T., Ratti, A., de Santis, S., Turner, W.C., Bravin, E., Manfredi, P.F., Vandelli, W., Beche, J.F., Beche, J.F., Byrd, J.M., Chow, K., Denes, P., Ghiorso, W., Matis, H.S., Monroy, M.T., Ratti, A., de Santis, S., Turner, W.C., Bravin, E., Manfredi, P.F., and Vandelli, W.

Published
2008

36. Rad-hard Luminosity Monitoring for the LHC

Author

Beche, J.F., Beche, J.F., Byrd, J.M., Chow, K., Denes, P., Ghiorso, W., Matis, H.S., Monroy, M.T., Ratti, A., de Santis, S., Turner, W.C., Bravin, E., Manfredi, P.F., Vandelli, W., Beche, J.F., Beche, J.F., Byrd, J.M., Chow, K., Denes, P., Ghiorso, W., Matis, H.S., Monroy, M.T., Ratti, A., de Santis, S., Turner, W.C., Bravin, E., Manfredi, P.F., and Vandelli, W.

Published
2008

40. A dedicated storage ring for Far-IR coherent synchrotron radiation at the ALS

Author

Barry, W.C., Barry, W.C., Baptist, K.M., Benjegerdes, R.J., Biocca, A.K., Byrd, J.M., Byrne, W.E., Cambie, D., Chin, M.J., Harkins, J.P., Kwiatkowski, S., Li, D., Marks, S., Martin, M.C., McKinney, W.R., Munson, D.V., Nishimura, H., Paterson, J.A., Plate, D.W., Rex, K.R., Robin, D.S., Rossi, S.L., Sannibale, F., Scarvie, T., Schlueter, R.D., Steier, C.A., Stover, G.D., Thur, W.G., Jung, J.Y., Zbasnik, J.P., Barry, W.C., Barry, W.C., Baptist, K.M., Benjegerdes, R.J., Biocca, A.K., Byrd, J.M., Byrne, W.E., Cambie, D., Chin, M.J., Harkins, J.P., Kwiatkowski, S., Li, D., Marks, S., Martin, M.C., McKinney, W.R., Munson, D.V., Nishimura, H., Paterson, J.A., Plate, D.W., Rex, K.R., Robin, D.S., Rossi, S.L., Sannibale, F., Scarvie, T., Schlueter, R.D., Steier, C.A., Stover, G.D., Thur, W.G., Jung, J.Y., and Zbasnik, J.P.

Abstract

We present the concepts for a storage ring dedicated to and optimized for the production of stable coherent synchrotron radiation (CSR) over the far-infrar ed wavelength range from about 200 microns to 1 mm.

Published
2002

41. A recirculating linac based synchrotron light source for ultrafast x-ray science

Author

Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., DeSantis, S., Heimann, P., Lidia, S., Li, D., Rimmer, R., Robinson, K., Schoenlein, R., Tanabe, J., Wang, S., Wan, W., Wells, R., Zholents, A., Placidi, M., Pirkl, W., Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., DeSantis, S., Heimann, P., Lidia, S., Li, D., Rimmer, R., Robinson, K., Schoenlein, R., Tanabe, J., Wang, S., Wan, W., Wells, R., Zholents, A., Placidi, M., and Pirkl, W.

Abstract

LBNL is pursuing a multi-divisional initiative that has this year further developed design studies and the scientific program for a facility dedicated to the production of x-ray pulses with ultra-short time duration. Our proposed x-ray facility [1] has the short x-ray pulse length (~;60 fs FWHM) necessary to study very fast dynamics, high flux (approximately 1011 photons/sec/0.1 percentBW) to study weakly scattering systems, and tuneability over 1-10 keV photon energy. The photon production section of the machine accomodates seven 2m long undulators and six 2T field dipole magnets. The x-ray pulse repetition rate of 10 kHz is matched to studies of dynamical processes (initiated by ultra-short laser pulses) that typicaly have a long recovery time or are not generally cyclic or reversible and need time to allow relaxation, replacement, or flow of the sample. The technique for producing ultra-short x-ray pulses uses relatively long electron bunches to minimise high-peak-current collective effects, and the ultimate x-ray duration is achieved by a combination of bunch manipulation and optical compression.

Published
2002

42. Synchronization of x-ray pulses to the pump laser in an ultrafast x-ray facility

Author

Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., Schoenlein, R., Zholents, A., Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., Schoenlein, R., and Zholents, A.

Abstract

Accurate timing of ultrafast x-ray probe pulses emitted from a synchrotron radiation source with respect to a pump laser exciting processes in the sample under study is critical for the investigation of structural dynamics in the femtosecond regime. We describe a scheme for synchronizing femtosecond x-ray pulses relative to a pump laser. X-ray pulses of <100 fs duration are generated from a proposed source based on a recirculating superconducting linac [1,2,3]. Short x-ray pulses are obtained by a process of electron pulse compression, followed by transverse temporal correlation of the electrons, and ultimately x-ray pulse compression. Timing of the arrival of the x-ray pulse with respect to the pump laser is found to be dominated by the operation of the deflecting cavities which provide the transverse temporal correlation of the electrons. The deflecting cavities are driven from a highly stable RF signal derived from a modelocked laser oscillator which is also the origin of the pump laser pulses.

Published
2002

43. A recirculating linac based synchrotron light source for ultrafast x-ray science

Author

Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., DeSantis, S., Heimann, P., Lidia, S., Li, D., Rimmer, R., Robinson, K., Schoenlein, R., Tanabe, J., Wang, S., Wan, W., Wells, R., Zholents, A., Placidi, M., Pirkl, W., Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., DeSantis, S., Heimann, P., Lidia, S., Li, D., Rimmer, R., Robinson, K., Schoenlein, R., Tanabe, J., Wang, S., Wan, W., Wells, R., Zholents, A., Placidi, M., and Pirkl, W.

Abstract

LBNL is pursuing a multi-divisional initiative that has this year further developed design studies and the scientific program for a facility dedicated to the production of x-ray pulses with ultra-short time duration. Our proposed x-ray facility [1] has the short x-ray pulse length (~;60 fs FWHM) necessary to study very fast dynamics, high flux (approximately 1011 photons/sec/0.1 percentBW) to study weakly scattering systems, and tuneability over 1-10 keV photon energy. The photon production section of the machine accomodates seven 2m long undulators and six 2T field dipole magnets. The x-ray pulse repetition rate of 10 kHz is matched to studies of dynamical processes (initiated by ultra-short laser pulses) that typicaly have a long recovery time or are not generally cyclic or reversible and need time to allow relaxation, replacement, or flow of the sample. The technique for producing ultra-short x-ray pulses uses relatively long electron bunches to minimise high-peak-current collective effects, and the ultimate x-ray duration is achieved by a combination of bunch manipulation and optical compression.

Published
2002

44. A dedicated storage ring for Far-IR coherent synchrotron radiation at the ALS

Author

Barry, W.C., Barry, W.C., Baptist, K.M., Benjegerdes, R.J., Biocca, A.K., Byrd, J.M., Byrne, W.E., Cambie, D., Chin, M.J., Harkins, J.P., Kwiatkowski, S., Li, D., Marks, S., Martin, M.C., McKinney, W.R., Munson, D.V., Nishimura, H., Paterson, J.A., Plate, D.W., Rex, K.R., Robin, D.S., Rossi, S.L., Sannibale, F., Scarvie, T., Schlueter, R.D., Steier, C.A., Stover, G.D., Thur, W.G., Jung, J.Y., Zbasnik, J.P., Barry, W.C., Barry, W.C., Baptist, K.M., Benjegerdes, R.J., Biocca, A.K., Byrd, J.M., Byrne, W.E., Cambie, D., Chin, M.J., Harkins, J.P., Kwiatkowski, S., Li, D., Marks, S., Martin, M.C., McKinney, W.R., Munson, D.V., Nishimura, H., Paterson, J.A., Plate, D.W., Rex, K.R., Robin, D.S., Rossi, S.L., Sannibale, F., Scarvie, T., Schlueter, R.D., Steier, C.A., Stover, G.D., Thur, W.G., Jung, J.Y., and Zbasnik, J.P.

Abstract

We present the concepts for a storage ring dedicated to and optimized for the production of stable coherent synchrotron radiation (CSR) over the far-infrar ed wavelength range from about 200 microns to 1 mm.

Published
2002

45. Synchronization of x-ray pulses to the pump laser in an ultrafast x-ray facility

Author

Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., Schoenlein, R., Zholents, A., Corlett, J.N., Corlett, J.N., Barry, W., Byrd, J.M., Schoenlein, R., and Zholents, A.

Abstract

Accurate timing of ultrafast x-ray probe pulses emitted from a synchrotron radiation source with respect to a pump laser exciting processes in the sample under study is critical for the investigation of structural dynamics in the femtosecond regime. We describe a scheme for synchronizing femtosecond x-ray pulses relative to a pump laser. X-ray pulses of <100 fs duration are generated from a proposed source based on a recirculating superconducting linac [1,2,3]. Short x-ray pulses are obtained by a process of electron pulse compression, followed by transverse temporal correlation of the electrons, and ultimately x-ray pulse compression. Timing of the arrival of the x-ray pulse with respect to the pump laser is found to be dominated by the operation of the deflecting cavities which provide the transverse temporal correlation of the electrons. The deflecting cavities are driven from a highly stable RF signal derived from a modelocked laser oscillator which is also the origin of the pump laser pulses.

Published
2002

46. ALS Transverse Multibunch Feedback System

Author

Barry, W., Barry, W., Byrd, J.M., Corlett, J.N., Hinkson, J., Lambertson, G.R., Barry, W., Barry, W., Byrd, J.M., Corlett, J.N., Hinkson, J., and Lambertson, G.R.

Published
1992

47. ALS Transverse Multibunch Feedback System

Author

Barry, W., Barry, W., Byrd, J.M., Corlett, J.N., Hinkson, J., Lambertson, G.R., Barry, W., Barry, W., Byrd, J.M., Corlett, J.N., Hinkson, J., and Lambertson, G.R.

Published
1992

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