Search Results - "Choong, W S"

A new time calibration method for switched-capacitor-array-based waveform samplers by Kim, H., Chen, C.-T., Eclov, N., Ronzhin, A., Murat, P., Ramberg, E., Los, S., Moses, W., Choong, W.-S., Kao, C.-M.

“…We have developed a new time calibration method for the DRS4 waveform sampler that enables us to precisely measure the non-uniform sampling interval inherent…”
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Scintillator Non-Proportionality: Present Understanding and Future Challenges by Moses, W.W., Payne, S.A., Choong, W.-S., Hull, G., Reutter, B.W.

“…Scintillator non-proportionality (the fact that the conversion factor between the energy deposited in a scintillator and the number of visible photons produced…”
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Performance of the Tachyon Time-of-Flight PET Camera by Peng, Q., Choong, W.-S, Vu, C., Huber, J. S., Janecek, M., Wilson, D., Huesman, R. H., Jinyi Qi, Jian Zhou, Moses, W. W.

“…We have constructed and characterized a time-of-flight Positron Emission Tomography (TOF PET) camera called the Tachyon. The Tachyon is a single-ring Lutetium…”
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OpenPET: A Flexible Electronics System for Radiotracer Imaging by Moses, W W, Buckley, S, Vu, C, Peng, Q, Pavlov, N, Choong, W, Wu, J, Jackson, C

“…We present the design for OpenPET, an electronics readout system designed for prototype radiotracer imaging instruments. The critical requirements are that it…”
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Optimization of a LSO-Based Detector Module for Time-of-Flight PET by Moses, W W, Janecek, M, Spurrier, M A, Szupryczynski, P, Choong, W.-S, Melcher, C L, Andreaco, M

“…We have explored methods for optimizing the timing resolution of an LSO-based detector module for a single-ring, "demonstration" time-of-flight PET camera. By…”
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Design of a Facility for Measuring Scintillator Non-Proportionality by Choong, W.-S., Vetter, K.M., Moses, W.W., Hull, G., Payne, S.A., Cherepy, N.J., Valentine, J.D.

“…While the original Compton coincidence technique provided accurate measurements of electron response in scintillators, the data rate was low and measurements…”
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Monte Carlo design of optimal wire mesh collimator for breast tumor imaging process by Saad, W.H.M., Roslan, R.E., Mahdi, M.A., Choong, W.-S., Saion, E., Saripan, M.I.

“…This paper presents the modeling of breast tumor imaging process using wire mesh collimator gamma camera. Previous studies showed that the wire mesh collimator…”
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Characterization of the LBNL PEM camera by Wang, G.-C., Huber, J.S., Moses, W.W., Qi, J., Choong, W.-S.

“…We present the tomographic images and performance measurements of the LBNL positron emission mammography (PEM) camera, a specially designed positron emission…”
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Measuring the dependence of the decay curve on the electron energy deposit in NaI(Tl) by Choong, W.-S., Bizarri, G., Cherepy, N.J., Hull, G., Moses, W.W., Payne, S.A.

“…We report on the first measurement of the decay times of NaI(Tl) as a function of the deposited electron energy. It has been suggested that the decay curve…”
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OpenPET: A flexible electronics system for radiotracer imaging by Moses, W.W., Buckley, S., Vu, C., Peng, Q., Pavlov, N., Choong, W.-S., Wu, J., Jackson, C.

“…We present the design for OpenPET, an electronics readout system designed for prototype radiotracer imaging instruments. The critical requirements are that it…”
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The performance of a wire mesh collimator SPECT camera for different breast volumes in prone position by Roslan, R.E., Saad, W.H. Mohd, Saripan, M.I., Hashim, S., Choong, W.-S.

“…The multihole collimator is the most commonly used collimator in conventional SPECT cameras for general purpose imaging. However, there are some limitations…”
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Search for CP violation in charged-Ξ and Λ hyperon decays by HOLMSTROM, T, LEROS, N, FELIX, J, FU, Y, GIDAL, G, GU, P, GUSTAFSON, H. R, HO, C, HUANG, M, JAMES, C, JENKINS, C. M, JONES, T, BURNSTEIN, R. A, KAPLAN, D. M, LEDERMAN, L. M, LONGO, M. J, LOPEZ, F, LU, L. C, LUEBKE, W, LUK, K. B, NELSON, K. S, PARK, H. K, PERROUD, J.-P, CHAKRAVORTY, A, RAJARAM, D, RUBIN, H. A, TENG, P. K, VOLK, J, WHITE, C. G, WHITE, S. L, ZYLA, P, CHAN, A, CHEN, Y. C, CHOONG, W. S, CLARK, K, DUKES, E. C, DURANDET, C

“…We have compared the p and p angular distributions in 117 x 10(6) Xi- -->Lambdapi- -->ppi-pi- and 41 x 10(6) Xi+ -->Lambda pi+ -->p pi+pi+ decays using a…”
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Evidence for the decay Σ+ → pμ+μ by PARK, H. K, BURNSTEIN, R. A, GIDAL, G, GUSTAFSON, H. R, HOLMSTROM, T, HUANG, M, JAMES, C, JENKINS, C. M, JONES, T, KAPLAN, D. M, LEDERMAN, L. M, LEROS, N, CHAKRAVORTY, A, LONGO, M. J, LOPEZ, F, LU, L. C, LUEBKE, W, LUK, K. B, NELSON, K. S, PERROUD, J.-P, RAJARAM, D, RUBIN, H. A, VOLK, J, CHEN, Y. C, WHITE, C. G, WHITE, S. L, ZYLA, P, CHOONG, W. S, CLARK, K, DUKES, E. C, DURANDET, C, FELIX, J, FU, Y

“…We report the first evidence for the decay {Sigma}{sup +} {yields} p{mu}{sup +}{mu}{sup -} from data taken by the HyperCP (E871) experiment at Fermilab. Based…”
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The Origins of Scintillator Non-Proportionality by Moses, W. W., Bizarri, G. A., Williams, R. T., Payne, S. A., Vasil'ev, A. N., Singh, J., Li, Q., Grim, J. Q., Choong, W.

“…Recent years have seen significant advances in both theoretically understanding and mathematically modeling the underlying causes of scintillator…”
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Calibration of a PEM detector with depth of interaction measurement by Wang, G.-C., Huber, J.S., Moses, W.W., Choong, W.-S., Maltz, J.S.

“…We present an in situ calibration technique for the LBNL positron emission mammography (PEM) detector module that is capable of measuring depth of interaction…”
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Enhancing Timing Performance of Heterostructures with Double-Sided Readout by Pagano, F., Cates, J. W., Choong, W.-S., Paganoni, M., Pizzichemi, M., Kratochwil, N., Hillemanns, E. Auffray

“…Heterostructured scintillators are gaining ground as a possible solution to the trade-off between the high sensitivity and fast timing of detectors for…”
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Imaging performance of the Tachyon Time-of-Flight PET camera by Peng, Q., Choong, W. S., Vu, C., Huber, J. S., Janecek, M., Wilson, D., Huesman, R. H., Moses, W. W.

“…Tachyon, a single-ring "demonstration" Time-of-Flight (TOF) PET scanner has been developed to measure the improvement in image quality as a function of the…”
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A compact 16-module camera using 64-pixel CsI(Tl)/Si p-i-n photodiode imaging modules by Choong, W.-S., Gruber, G.J., Moses, W.W., Derenzo, S.E., Holland, S.E., Pedrali-Noy, M., Krieger, B., Mandelli, E., Meddeler, G., Wang, N.W., Witt, E.K.

“…We present a compact, configurable scintillation camera employing a maximum of 16 individual 64-pixel imaging modules resulting in a 1024-pixel camera covering…”
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A multi-threshold sampling method for TOF-PET signal processing by Kim, H., Kao, C.M., Xie, Q., Chen, C.T., Zhou, L., Tang, F., Frisch, H., Moses, W.W., Choong, W.S.

“…As an approach to realizing all-digital data acquisition for positron emission tomography (PET), we have previously proposed and studied a multi-threshold…”
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Search for ΔS = 2 nonleptonic hyperon decays by WHITE, C. G, BURNSTEIN, R. A, GIDAL, G, GU, P, GUSTAFSON, H. R, HO, C, HOLMSTROM, T, HUANG, M, JAMES, C, JENKINS, C. M, KAPLAN, D. M, LEDERMAN, L. M, CHAKRAVORTY, A, LEROS, N, LONGO, M. J, LOPEZ, F, LU, L. C, LUEBKE, W, LUK, K. B, NELSON, K. S, PARK, H. K, PERROUD, J.-P, RAJARAM, D, CHAN, A, RUBIN, H. A, TENG, P. K, VOLK, J, WHITE, S. L, ZYLA, P, CHEN, Y. C, CHOONG, W. S, CLARK, K, DUKES, E. C, DURANDET, C, FELIX, J

“…A sensitive search for the rare decays {Omega}{sup -} {yields} {Lambda}{pi}{sup -} and {Xi}{sup 0} {yields} p{pi}{sup -} has been performed using data from the…”
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