We report on the calibration of GafChromic HD-v2 radiochromic film in the extremely high dose regime up to 100 kGy together with very high dose rates up to 7 × 1011 Gy/s. The absolute calibration was done with nanosecond ion bunches at the Neutralized Drift Compression Experiment II particle accelerator at Lawrence Berkeley National Laboratory (LBNL) and covers a broad dose dynamic range over three orders of magnitude. We then applied the resulting calibration curve to calibrate a laser driven ion experiment performed on the BELLA petawatt laser facility at LBNL. Here, we reconstructed the spatial and energy resolved distributions of the laser-accelerated proton beams. The resulting proton distribution is in fair agreement with the spectrum that was measured with a Thomson spectrometer in combination with a microchannel plate detector.
Bin, J. H., et al. "Absolute calibration of GafChromic film for very high flux laser driven ion beams." Review of Scientific Instruments, vol. 90, no. 5, May. 2019. https://doi.org/10.1063/1.5086822
Bin, J. H., Ji, Q., Seidl, P. A., Raftrey, D., Steinke, S., Persaud, A., Nakamura, K., Gonsalves, A., Leemans, W. P., & Schenkel, T. (2019). Absolute calibration of GafChromic film for very high flux laser driven ion beams. Review of Scientific Instruments, 90(5). https://doi.org/10.1063/1.5086822
Bin, J. H., Ji, Q., Seidl, P. A., et al., "Absolute calibration of GafChromic film for very high flux laser driven ion beams," Review of Scientific Instruments 90, no. 5 (2019), https://doi.org/10.1063/1.5086822
@article{osti_1650060,
author = {Bin, J. H. and Ji, Q. and Seidl, P. A. and Raftrey, D. and Steinke, S. and Persaud, A. and Nakamura, K. and Gonsalves, A. and Leemans, W. P. and Schenkel, T.},
title = {Absolute calibration of GafChromic film for very high flux laser driven ion beams},
annote = {We report on the calibration of GafChromic HD-v2 radiochromic film in the extremely high dose regime up to 100 kGy together with very high dose rates up to 7 × 1011 Gy/s. The absolute calibration was done with nanosecond ion bunches at the Neutralized Drift Compression Experiment II particle accelerator at Lawrence Berkeley National Laboratory (LBNL) and covers a broad dose dynamic range over three orders of magnitude. We then applied the resulting calibration curve to calibrate a laser driven ion experiment performed on the BELLA petawatt laser facility at LBNL. Here, we reconstructed the spatial and energy resolved distributions of the laser-accelerated proton beams. The resulting proton distribution is in fair agreement with the spectrum that was measured with a Thomson spectrometer in combination with a microchannel plate detector.},
doi = {10.1063/1.5086822},
url = {https://www.osti.gov/biblio/1650060},
journal = {Review of Scientific Instruments},
issn = {ISSN 0034-6748},
number = {5},
volume = {90},
place = {United States},
publisher = {American Institute of Physics (AIP)},
year = {2019},
month = {05}}
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