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. 2011 Mar 15;38(4):1919–1930. doi: 10.1118/1.3560422

Table 1.

Tungsten anode x-ray beam qualities for NIST, UW-ADCL, and Monte Carlo GSF beam codes, including the first HVL and homogeneity coefficients (HC).

NIST x-ray beamsa UW x-ray beamsb GSF beamsc
Beam codes First HVL (mm Al) HC (%) Beam codes First HVL (mm Al) HC (%) Effective energy (keV) Spectrum codes First HVL (mm Al) Effective energy (keV)
M60 1.64 63 UW60-M 1.68 66 26.9 49 1.54 26.0
M80 2.98 68 UW80-M 2.96 68 33.5 60 2.76 32.5
M100 5.00 74 UW100-M 4.98 72 42.1 71 5.02 42.2
M120 6.72 77 UW120-M 6.96 78 49.9 80 6.31 47.5
a

Reference 28.

b

Reference 27.

c

Reference 29.