A double cell differential thermometric system for specific loss power measurements in magnetic hyperthermia

Application and comparison of thermistors and fiber optic temperature sensor reference for ILP measurement of magnetic fluids in double cell magnetic hyperthermia

“…Larger deviation is only detected in case of the lowest and the highest frequencies (18.2% and 15.7% respectively). If the results of our previous study obtained with thermocouples and Pt100 RTD thermometer [13] are compared, those values are slightly larger than the present fiber optic thermometer data, the relative difference is 9.4%. The average relative error of the calculation in case of type K and T thermocouples and Pt100 RTD were 1.2%, 0.5% and 1.3% respectively.…”

“…The details of the calorimetric hyperthermia apparatus with differential temperature measurement are given in reference [13] . Here, only the most important aspects and changes made to the system are outlined.…”

“…One side is placed into the magnetic fluid sample, while the other side is immersed in a reference material. The basic configuration of our system was described in detail in reference [13] . There were changes in the sensing circuits to adapt to new type of sensing elements such as NTC thermistor.…”

“…Previously, a double cell thermometric system for laboratory use was proposed to determine the SLP values of magnetic fluids with low cost sensors (type K and T thermocouples, and Pt100 resistance temperature detector (RTD)) in differential measurement mode to compensate the self-heating of the sensors [13] . Skumiel and his coworkers [14] compared different temperature sensors (including optical fiber sensor and type K thermocouple) to determine the SLP values of a magnetic fluid in a single coil measurement system.…”

Dynamic Susceptibility of Ferrofluids: The Numerical Algorithm for the Inverse Problem of Magnetic Granulometry

“…If the field is weak, then the linear response is defined by the initial dynamic magnetic susceptibility, χ, which consists of real (in-phase, χ ) and imaginary (out-of-phase, χ ) parts. Power dissipation is proportional to χ , and so magnetic suspension can be efficiently used in the magnetic hyperthermia method of cancer therapy [2][3][4][5] and the magnetic particle imaging [6][7][8][9].…”