Particle beam projection chamber and particle beam treatment device

Abstract

An objective of this particle beam projection chamber is to ensure that after a patient is positioned on somewhere other than the patient bed in a projection region used when actually projecting a particle beam, the amount of positional deviation in the positioning state of the patient is within an allowable range when being moved to the projection region from the entrance of the projection chamber. This particle beam projection chamber (20) comprises: a projection execution chamber (22) wherein a wherein a patient bed (2) comprising a detachable top board (5) and a drive device (9) for driving the top board (5) is placed, said projection execution chamber (22) being surrounded by a shield wall (21); a path (23) which is disposed on a side in the shield wall (21) where an antechamber (25) in which a patient (45) is to be positioned on the top board (5) is located, such that the patient (45) positioned on the top board (5) may pass into the projection execution chamber (22) by a conveyance device (10) in a straight line; and a shield door (24) which shields radiation leaking at or less than a managed value when the particle beam is projected, said shield door (24) being provided at a projection chamber entrance (30) which is located on the antechamber (25) side of the path (23).

Description

technical field [0001] The present invention relates to an irradiation chamber of a particle beam therapy apparatus used for treating cancer and the like. Background technique [0002] In recent years, among particle beam therapy devices for treating cancer, cancer therapy devices using protons and heavy ions (particularly referred to as particle beam therapy devices) have been developed and constructed. It is well known that particle beam therapy using protons, heavy ions, etc., can irradiate cancer patients intensively and treat normal cells without affecting normal cells, compared with conventional radiation therapy such as X-rays and gamma rays. [0003] In particle beam therapy, it is important to irradiate tumors such as cancer with high precision. Therefore, in order that the patient does not deviate from the position of the bed (patient table) in the treatment room (irradiation room) during the particle beam therapy, it is fixed to the ceiling of the bed using fixtu...

AI Technical Summary

Problems solved by technology

Compared with the time required for irradiation of about 5 minutes, the setting operation before irradiation takes twice as long, and as a result, the efficient use of particle beam therapy equipment is impaired

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