Zhu Pengfei, Ye Yan, Li Zeren, et al. Effects of X-ray beam hardening on measurement sensitivity of areal density[J]. High Power Laser and Particle Beams, 2012, 24: 463-466. doi: 10.3788/HPLPB20122402.0463
Citation:
Zhu Pengfei, Ye Yan, Li Zeren, et al. Effects of X-ray beam hardening on measurement sensitivity of areal density[J]. High Power Laser and Particle Beams, 2012, 24: 463-466. doi: 10.3788/HPLPB20122402.0463
Zhu Pengfei, Ye Yan, Li Zeren, et al. Effects of X-ray beam hardening on measurement sensitivity of areal density[J]. High Power Laser and Particle Beams, 2012, 24: 463-466. doi: 10.3788/HPLPB20122402.0463
Citation:
Zhu Pengfei, Ye Yan, Li Zeren, et al. Effects of X-ray beam hardening on measurement sensitivity of areal density[J]. High Power Laser and Particle Beams, 2012, 24: 463-466. doi: 10.3788/HPLPB20122402.0463
Hardening trends of X-ray beams from three X-ray machines of different energies traversing aluminium plates of different thickness were simulated by means of Monte-Carlo method, as well as the processes of areal density measuring,and corresponding experimental researchwas done.The effects of X-ray beams hardening on the measurement sensitivity were analyzed. For the X-ray beams from X-ray machine the same energy, X-ray beams harden more with the areal density increasing, which brings about the reduction of the measurement sensitivity;The lower the energy of photons is , the more quicklythe measurement sensitivity reduces, and vice versa. For a certain areal density range, when X-ray photons can just traverse the part of the maximum areal density by adjusting the X-ray tube voltage, the best measurement sensitivity can be obtained.