A Universal Cassette-Based System for the Dissolution of Solid Targets.

Area of Science:

• Nuclear Chemistry
• Radiopharmaceutical Chemistry
• Medical Imaging

Background:

• Growing demand for cyclotron-produced radiometals (e.g., 68Ga, 89Zr) necessitates efficient solid target processing.
• Current methods separate target dissolution from subsequent purification and radiolabeling steps, hindering workflow efficiency.
• Solid target dissolution is the critical first step in radiochemical processing for radiometal production.

Purpose of the Study:

• To develop a flexible solid target dissolution system adaptable to commercial cassette-based synthesis modules.
• To enable continuous, integrated target processing and radiopharmaceutical synthesis within a single module.
• To improve the efficiency and automation of radiometal production.

Main Methods:

• Designed a system using an open-bottomed vial positioned over a target coin.
• Utilized a syringe pump's movement mechanism for vial positioning and a module's reactor for target holding.
• Integrated all steps, including purification and radiolabeling, into a single cassette manifold for remote control.

Main Results:

• Successfully demonstrated a flexible solid target dissolution system.
• Tested the system's performance with three different irradiated targets under various dissolution conditions.
• Validated the concept of integrated, continuous target processing and synthesis.

Conclusions:

• The developed system offers a streamlined approach to solid target dissolution for radiometal production.
• Integration into cassette-based modules enhances flexibility and automation in radiopharmaceutical synthesis.
• This approach facilitates efficient production of essential cyclotron-based radionuclides.