irpa 11 guidelines for authors on the preparation of the full papers

3.2. Composition of characteristic F(x) corresponding to an effective dose or a dose equivalent
A compound characteristic F(x) was obtained by defining the coefficients of the <strong>for</strong>mula (1). Six kinds
of characteristics by this method are shown in Figure 4. Although the characteristics were not able to
obtain sufficient approximation to the conversion coefficients of ICRP in energy higher than 1.0MeV
and lower than 0.03MeV, the approximation were less than 5% of error in the middle energy
range of 0.03-1.0MeV.
response [Sv/Gy]
response [Sv/Gy]
response [Sv/Gy]
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
ICRP E/Ka
E type F(x)
0.01 0.1 1 10
photon energy [MeV]
ICRP Hp(10,0°)/Ka
Hp(10,0°) type F(x)
0.01 0.1 1 10
photon energy [MeV]
ICRP Hp(0.07,0°)/Ka
Hp(0.07,0°) F(x)
0.01 0.1 1 10
photon energy [MeV]
response [Sv/Gy]
response [Sv/Gy]
response [Sv/Gy]
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
ICRP H*(10)/Ka
H*(10) type F(x)
0.01 0.1 1 10
photon energy [MeV]
ICRP H'(10,0°)/Ka
H'(10,0°) type F(x)
0.01 0.1 1 10
photon energy [MeV]
ICRP H'(0.07,0°)/Ka
H'(0.07,0°) F(x)
0.01 0.1 1 10
photon energy [MeV]
Fig.4. Comparison of the characteristics F(x)/Ka acquired by optimizing ki and the dose conversion
coefficients of the ICRP Publication 74.
3.3. Load coefficients ki of F(x) corresponding to an effective dose or a dose equivalent
measurement
Lord coefficients ki of the characteristic F(x) corresponding to the measurement of an effective dose or
a dose equivalent were shown in Table 1. In the work which obtains optimal F(x), all of the fi(x)
did not need to be used, and fi(x) more than a half were not used <strong>for</strong> the design of the filter.
4