Search Results - "Slaba, Tony C."

NASA's first ground-based Galactic Cosmic Ray Simulator: Enabling a new era in space radiobiology research by Simonsen, Lisa C, Slaba, Tony C, Guida, Peter, Rusek, Adam

“…With exciting new NASA plans for a sustainable return to the moon, astronauts will once again leave Earth's protective magnetosphere only to endure higher…”
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A Comprehensive Comparison of Various Galactic Cosmic-Ray Models to the State-of-the-art Particle and Radiation Measurements by Liu, Weihao, Guo, Jingnan, Wang, Yubao, Slaba, Tony C.

“…Abstract Galactic cosmic rays (GCRs) are the slowly varying background energetic particles that originate outside the solar system, are modulated by the…”
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A practical approach for continuous in situ characterization of radiation quality factors in space by Shuryak, Igor, Slaba, Tony C., Plante, Ianik, Poignant, Floriane, Blattnig, Steven R., Brenner, David J.

“…The space radiation environment is qualitatively different from Earth, and its radiation hazard is generally quantified relative to photons using quality…”
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Geometrical Properties of the Nucleus and Chromosome Intermingling Are Possible Major Parameters of Chromosome Aberration Formation by Poignant, Floriane, Plante, Ianik, Patel, Zarana S, Huff, Janice L, Slaba, Tony C

“…Ionizing radiation causes chromosome aberrations, which are possible biomarkers to assess space radiation cancer risks. Using the Monte Carlo codes…”
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Medical Countermeasure Requirements to Meet NASA’s Space Radiation Permissible Exposure Limits for a Mars Mission Scenario by Werneth, Charles M., Slaba, Tony C., Huff, Janice L., Patel, Zarana S., Simonsen, Lisa C.

“…The space radiation environment consists of a complex mixture of ionizing particles that pose significant health risks to crew members. NASA currently requires…”
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Reference field specification and preliminary beam selection strategy for accelerator-based GCR simulation by Slaba, Tony C., Blattnig, Steve R., Norbury, John W., Rusek, Adam, La Tessa, Chiara

“…The galactic cosmic ray (GCR) simulator at the NASA Space Radiation Laboratory (NSRL) is intended to deliver the broad spectrum of particles and energies…”
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The radiation environment on the surface of Mars - Summary of model calculations and comparison to RAD data by Matthiä, Daniel, Hassler, Donald M., de Wet, Wouter, Ehresmann, Bent, Firan, Ana, Flores-McLaughlin, John, Guo, Jingnan, Heilbronn, Lawrence H., Lee, Kerry, Ratliff, Hunter, Rios, Ryan R., Slaba, Tony C., Smith, Michael, Stoffle, Nicholas N., Townsend, Lawrence W., Berger, Thomas, Reitz, Günther, Wimmer-Schweingruber, Robert F., Zeitlin, Cary

“…The radiation environment at the Martian surface is, apart from occasional solar energetic particle events, dominated by galactic cosmic radiation, secondary…”
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Late onset cardiovascular dysfunction in adult mice resulting from galactic cosmic ray exposure by Bishawi, Muath, Lee, Franklin H., Abraham, Dennis M., Glass, Carolyn, Blocker, Stephanie J., Cox, Daniel J., Brown, Zachary D., Rockman, Howard A., Mao, Lan, Slaba, Tony C., Dewhirst, Mark W., Truskey, George A., Bowles, Dawn E.

“…The complex and inaccessible space radiation environment poses an unresolved risk to astronaut cardiovascular health during long-term space exploration…”
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OLTARIS: On-line tool for the assessment of radiation in space by Singleterry, Robert C., Blattnig, Steve R., Clowdsley, Martha S., Qualls, Garry D., Sandridge, Chris A., Simonsen, Lisa C., Slaba, Tony C., Walker, Steven A., Badavi, Francis F., Spangler, Jan L., Aumann, Aric R., Neal Zapp, E., Rutledge, Robert D., Lee, Kerry T., Norman, Ryan B., Norbury, John W.

“…OLTARIS (On-Line Tool for the Assessment of Radiation In Space) is a space radiation analysis tool available on the World Wide Web. It can be used to study the…”
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Determination of Chromosome Aberrations in Human Fibroblasts Irradiated by Mixed Fields Generated with Shielding by Slaba, Tony C., Plante, Ianik, Ponomarev, Artem, Patel, Zarana S., Hada, Megumi

“…To better study biological effects of space radiation using ground-based facilities, the NASA Space Radiation Laboratory (NSRL) at the Brookhaven National…”
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Improving astronaut cancer risk assessment from space radiation with an ensemble model framework by Simonsen, Lisa C., Slaba, Tony C.

“…A new approach to NASA space radiation risk modeling has successfully extended the current NASA probabilistic cancer risk model to an ensemble framework able…”
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DNA break clustering as a predictor of cell death across various radiation qualities: influence of cell size, cell asymmetry, and beam orientation by Poignant, Floriane, Pariset, Eloise, Plante, Ianik, Ponomarev, Artem L, Evain, Trevor, Viger, Louise, Slaba, Tony C, Blattnig, Steve R, Costes, Sylvain V

“…Abstract Cosmic radiation, composed of high charge and energy (HZE) particles, causes cellular DNA damage that can result in cell death or mutation that can…”
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Calibration of a radiation quality model for sparse and uncertain data by Crespo, Luis G., Slaba, Tony C., Kenny, Sean P., Swinney, Mathew W., Giesy, Daniel P.

“…•This paper proposes two strategies for calibrating parametric models according to uncertain data.•The computational demands of the inverse approach are much…”
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Comparing HZETRN, SHIELD, FLUKA and GEANT transport codes by Norbury, John W., Slaba, Tony C., Sobolevsky, Nikolai, Reddell, Brandon

“…For the first time, the American (NASA) and Russian (ROSCOSMOS) space radiation transport codes, HZETRN and SHIELD respectively, are directly compared to each…”
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Optimal shielding thickness for galactic cosmic ray environments by Slaba, Tony C., Bahadori, Amir A., Reddell, Brandon D., Singleterry, Robert C., Clowdsley, Martha S., Blattnig, Steve R.

“…Models have been extensively used in the past to evaluate and develop material optimization and shield design strategies for astronauts exposed to galactic…”
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Galactic cosmic ray simulation at the NASA space radiation laboratory – Progress, challenges and recommendations on mixed-field effects by Huff, Janice L., Poignant, Floriane, Rahmanian, Shirin, Khan, Nafisah, Blakely, Eleanor A., Britten, Richard A., Chang, Polly, Fornace, Albert J., Hada, Megumi, Kronenberg, Amy, Norman, Ryan B., Patel, Zarana S., Shay, Jerry W., Weil, Michael M., Simonsen, Lisa C., Slaba, Tony C.

“…•A virtual workshop on galactic cosmic ray simulation at the NASA Space Radiation Lab was held in 2020.•The GCR simulator (GCRsim) represents the radiation…”
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Correct modeling results are needed to inform mission planning and shield design by Slaba, Tony C., Singleterry, Robert C.

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Galactic cosmic ray simulation at the NASA Space Radiation Laboratory by Norbury, John W., Schimmerling, Walter, Slaba, Tony C., Azzam, Edouard I., Badavi, Francis F., Baiocco, Giorgio, Benton, Eric, Bindi, Veronica, Blakely, Eleanor A., Blattnig, Steve R., Boothman, David A., Borak, Thomas B., Britten, Richard A., Curtis, Stan, Dingfelder, Michael, Durante, Marco, Dynan, William S., Eisch, Amelia J., Robin Elgart, S., Goodhead, Dudley T., Guida, Peter M., Heilbronn, Lawrence H., Hellweg, Christine E., Huff, Janice L., Kronenberg, Amy, La Tessa, Chiara, Lowenstein, Derek I., Miller, Jack, Morita, Takashi, Narici, Livio, Nelson, Gregory A., Norman, Ryan B., Ottolenghi, Andrea, Patel, Zarana S., Reitz, Guenther, Rusek, Adam, Schreurs, Ann-Sofie, Scott-Carnell, Lisa A., Semones, Edward, Shay, Jerry W., Shurshakov, Vyacheslav A., Sihver, Lembit, Simonsen, Lisa C., Story, Michael D., Turker, Mitchell S., Uchihori, Yukio, Williams, Jacqueline, Zeitlin, Cary J.

“…Most accelerator-based space radiation experiments have been performed with single ion beams at fixed energies. However, the space radiation environment…”
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Variation in Lunar Neutron Dose Estimates by Slaba, Tony C., Blattnig, Steve R., Clowdsley, Martha S.

“…The radiation environment on the Moon includes albedo neutrons produced by primary particles interacting with the lunar surface. In this work, HZETRN2010 is…”
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Reduced discretization error in HZETRN by Slaba, Tony C., Blattnig, Steve R., Tweed, John

“…The deterministic particle transport code HZETRN is an efficient analysis tool for studying the effects of space radiation on humans, electronics, and…”
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