Radiation Image Capturing Apparatus Receptor Field Selection
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Solution Overview
Problem
When a radiation image capturing apparatus is detached from its stand, it becomes challenging to accurately set and align receptor fields for Automatic Exposure Control (AEC) due to difficulties in determining the positional relationship between the object and the receptor fields, as existing techniques do not account for the detachment scenario.
Innovation Solution
The apparatus includes an attachment detection unit that determines whether it is attached to a stand, limiting the selectable receptor fields to only the central one when detached, facilitating alignment and reducing the complexity of positioning, while allowing all fields to be selectable when attached, thus improving usability and responsiveness during image capturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the radiation image capturing apparatus is detached from the stand to perform image capturing at an arbitrary position, then the flexibility and adaptability of the apparatus is improved, but the ease of operation deteriorates due to difficulty in grasping the positional relationship between the object and receptor fields
Solution Approach 1:
The control unit provides visual feedback by displaying the selected receptor field and its position on the display unit, enabling the user to grasp the positional relationship between the object and receptor fields. This feedback mechanism resolves the contradiction by maintaining adaptability while improving ease of operation through visual information presentation.
Solution Approach 2:
The control unit acts as an intermediary between the receptor field selection and the user, processing the selection and providing visual representation on the display unit. This intermediary function bridges the gap between the complex positional relationships and the user's understanding, resolving the contradiction between flexibility and ease of operation.
2Adaptability or versatility
If multiple receptor fields are made selectable when detached from the stand, then the adaptability is improved, but the device complexity increases due to the need to manage positional relationships
Solution Approach 1:
The patent extracts only the necessary information (receptor field position and selection status) and presents it through the display unit, rather than requiring the system to manage and process all possible positional relationships. This extraction approach maintains adaptability while reducing device complexity by focusing on essential information only.
3Measurement precision
If the apparatus provides detailed positional information for receptor field selection when detached, then the measurement precision is improved, but the ease of operation deteriorates due to increased complexity in selecting the appropriate field
Solution Approach 1:
The control unit provides partial information by displaying only the selected receptor field's position and characteristics on the display unit, rather than overwhelming the user with complete positional data for all fields. This partial information approach maintains positioning precision while improving ease of operation by presenting only relevant information.
Data Source
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AI summary
A radiation image capturing apparatus (300) is provided. The apparatus comprises an image capturing unit (100) configured to acquire a radiation image, the image capturing unit (100) being provided with a plurality of receptor fields (A~C, K~O) for acquiring irradiation information of radiation concerning an integrated dose of radiation entering during irradiation with radiation, and a selection unit (406) configured to select a receptor field, of the plurality of receptor fields (A~C, K~O), which is used by a user. The selection unit (406) changes an upper limit of the number of receptor fields, of the plurality of receptor fields (A~C, K~O), which are used for one image capturing operation depending on when the radiation image capturing apparatus (300) is attached to a stand to which the radiation image capturing apparatus (300) can be attached and when the radiation image capturing apparatus (300) is detached from the stand.