|
KMID : 0362919900080010125
|
|
Journal of the Korean Society for Therapeutic Radiology and Oncology
1990 Volume.8 No. 1 p.125 ~ p.131
|
|
|
Dose Attenuation in the Mid-Cranial Fossa with 6 MV hoton Beam Irradiations
|
|
Park Jeong-Ho
Choi Tae-Jin
Kim Ok-Bae
|
|
|
Abstract
|
|
|
In X-ray irradiation, dose distribution depends on multiple parameters, one of them being tissue inhomogeneity to change the dose significantly. Cpnsoderable dose attenuation through the mid-cranial fossa is expected because of various bony structures in it.
Dose distribution around the mid-cranial fossa, following irradiation with 6 MV photon beam, was measured with LiF TLD micro-rod, and compared with the expected dose in the same sites.
In our calculation with Cf(correction factor), the expected dose attenuation revealed about 3.74% per 1 cm thickness of bone tissue. And the differences between the expected dose with correction for bone tissue and the measured dose by TLD was small, agreeing within an average variation of ±0.21%.
|
|
|
KEYWORD
|
|
|
Bone correction factor, TLD, Mid-cranial fossa
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|