1 Bq
= 1 dps
1 Gy
= 1 joule / kg
H (Sv)
=
T
Quality Factors (Q) values:
x-rays, beta, gamma
neutrons:
alpha
DOSE EQUIVALENT CALCULATIONS
1 Roentgen
or
1 R/hr
1 rad
ñ
air
W
air
1 Ampere
STP
air
DOSIMETRY
D(Gy) x Q (Sv / Gy)
thermal
fast
= 2.58E-4C / kg or 1 esu / cm
= 87 ergs / g
= 7.02 E4 MeV / cm in air @ STP
= 98 ergs / g in tissue
~ 1 E-13 Amperes / cm
= 100 ergs / g in any absorber
= 0.001293 g / cm
= 33.7 eV
= 1 Coulomb / sec
= 760mm Hg @ 0 C or 14.7lb / in @ 32 F
= 2.7 E-11 Ci
= 100 rads
=
1
=
2
=
10
=
20
or 2.082 E9 ip / cm
3
3
3
0
46
3
3
2
0