Adjustable Radius Photon Detection for Boron Neutron Capture Therapy
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Solution Overview
Problem
Current photon emission detection devices in boron neutron capture therapy systems have limitations due to their fixed detection radius and multiple moving parts, leading to reduced accuracy and efficiency in positioning and data collection.
Innovation Solution
A photon emission detection device with adjustable ring radius, featuring movable and rotatable detection portions surrounding a treatment bed, allowing for customizable detection geometry and improved positioning accuracy, coupled with a signal acquisition and feedback system for real-time boron concentration calculation and irradiation correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a full-ring photon emission detection device is used to reduce the number of moving parts, then the device complexity is reduced, but the detecting accuracy deteriorates because the detecting radius is fixed and cannot be adjusted according to the actual condition of the patient
Solution Approach 1:
The detection device is divided into multiple independent detection modules that can be segmented and reconfigured. Each module can be independently positioned and adjusted, allowing the system to maintain simplicity while achieving adjustable detection radii through modular arrangement around the treatment bed.
Solution Approach 2:
The detection device transitions from a static fixed-radius design to a dynamic adjustable-radius configuration. The detection modules can move along radial and angular directions, enabling real-time adjustment of the detection radius to match patient-specific requirements while maintaining a relatively simple overall structure.
2Measurement precision
If a rotary gamma camera probe is used to achieve adjustable detection angles, then the detecting accuracy is improved, but the device complexity increases due to many moving parts required to rotate the probe
Solution Approach 1:
Instead of rotating a single large probe, the system uses multiple smaller detection modules distributed around the treatment bed. Each module has simplified rotation and positioning mechanisms, reducing the overall number of moving parts while maintaining the ability to achieve precise detection angles through coordinated positioning of multiple segments.
3Device complexity
If a fixed detecting radius is used in the full-ring detection device, then the device complexity is reduced, but the adaptability deteriorates because it cannot be adjusted according to the actual situation of the detected object
Solution Approach 1:
The detection system incorporates dynamic adjustment capabilities where detection modules can change their radial distance from the treatment bed center. This allows the fixed-structure simplicity to be maintained while the detection radius becomes variable, enabling adaptation to different patient sizes and treatment requirements.
Solution Approach 2:
The detection device is designed with multi-functional detection modules that can operate at multiple radii and angles. This universal design allows a single modular unit to serve multiple detection configurations, reducing overall device complexity while enhancing adaptability to various patient conditions and treatment scenarios.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances detection accuracy by adapting to the actual patient condition, improving the precision of gamma ray detection and boron concentration measurement, and enabling real-time adjustments for optimized neutron therapy.
Implementation Method 1
the detecting portion detects gamma rays generated by a boron neutron capture reaction through the probing device
Data Source
AI summary
A boron neutron capture therapy system includes a neutron capture therapy device, a photon emission detection device and a treatment bed. The photon emission detection device includes a detecting portion surrounding the periphery of the treatment bed and detecting gamma rays generated after irradiating a boron-containing drug with neutrons; the detecting portion includes a first detecting portion and a second detecting portion moving away from or close to the first detecting portion so that the detecting portion forms a ring with the radius being increased or decreased; and the ring surrounds the treatment bed. The photon emission detection device for use in the boron neutron capture therapy system can change the radius of the ring, surrounding an irradiated object, of the detecting portion according to the actual condition in the boron neutron capture therapy so as to improve the detection precision of the photon emission detection device.