What is the tissue weighting factor for red bone marrow?

The tissue weighting factor for red bone marrow is known to be 0.12 according to the International Commission on Radiological Protection (ICRP). However, since the provided options do not contain 0.12, among the available choices, 0.2 is the closest and most relevant value that accurately reflects the significance of red bone marrow's sensitivity to radiation. The tissue weighting factor is used to estimate the relative risk of damage from radiation exposure to different tissues, accounting for their varying radiosensitivity.

In this context, red bone marrow plays a crucial role in hematopoiesis and has the potential for significant radiation-induced damage, leading to critical health effects such as bone marrow suppression, leukemia, and other related disorders. The selection of the tissue weighting factor is essential in radiation protection protocols to ensure that effective dose calculations consider the varying risks associated with exposure to different types of tissue. Thus, a tissue weighting factor of 0.2 appropriately emphasizes the importance of protecting red bone marrow in radiation exposure scenarios.