Flash radiography with 24 GeV/c protons
Flash radiography with 24 GeV/c protons
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DOI：
10.1063/1.3580262
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发表时间：
2011-05
影响因子：
3.2
通讯作者：
C. Morris;E. Ables;K. Alrick;M. Aufderheide;P. Barnes;K. Buescher;D. Cagliostro;D. Clark;D. J. Clark;C. Espinoza;E. Ferm;R. Gallegos;S. Gardner;J. Gomez;G. Greene;A. Hanson;E. Hartouni;G. Hogan;N. King;K. Kwiatkowski;R. Liljestrand;F. Mariam;F. Merrill;D. Morgan;K. Morley;C. Mottershead;M. Murray;P. Pazuchanics;J. Pearson;J. Sarracino;A. Saunders;J. Scaduto;A. S. V. Wittenau;R. Soltz;S. Sterbenz;R. T. Thompson;K. Vixie;M. Wilke;D. M. Wright;J. Zumbro
中科院分区：
文献类型：
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作者：
C. Morris;E. Ables;K. Alrick;M. Aufderheide;P. Barnes;K. Buescher;D. Cagliostro;D. Clark;D. J. Clark;C. Espinoza;E. Ferm;R. Gallegos;S. Gardner;J. Gomez;G. Greene;A. Hanson;E. Hartouni;G. Hogan;N. King;K. Kwiatkowski;R. Liljestrand;F. Mariam;F. Merrill;D. Morgan;K. Morley;C. Mottershead;M. Murray;P. Pazuchanics;J. Pearson;J. Sarracino;A. Saunders;J. Scaduto;A. S. V. Wittenau;R. Soltz;S. Sterbenz;R. T. Thompson;K. Vixie;M. Wilke;D. M. Wright;J. Zumbro
本文研究了24 GeV/c质子对厚物体闪光（40 ns）照相中密度测量的精度和位置分辨力。一个全球性的模型，适合步骤楔形数据给出了一个很好的描述跨越周期表。从阶梯楔数据获得的参数被用来预测通过法国测试对象（FTO），嵌套球体的测试对象，精度优于1%的传输。多次试验表明，系统误差小于2%。密度的平均射线照相测量值与已知密度之间的绝对一致性为1%。空间分辨率已被测量为200 μm的中心的FTO。这些数据验证了高能强子射线照相术对厚物体所提供的益处的预期。
The accuracy of density measurements and position resolution in flash (40 ns) radiography of thick objects with 24 Gev/c protons is investigated. A global model fit to step wedge data is shown to give a good description spanning the periodic table. The parameters obtained from the step wedge data are used to predict transmission through the French Test Object (FTO), a test object of nested spheres, to a precision better than 1%. Multiple trials have been used to show that the systematic errors are less than 2%. Absolute agreement between the average radiographic measurements of the density and the known density is 1%. Spatial resolution has been measured to be 200 μm at the center of the FTO. These data verify expectations of the benefits provided by high energy hadron radiography for thick objects.