Balcazar, M.D. Cummings, M.A. Dudas, A. Johnson, R.P. Kazakevich, G.M. Moretti, A. Neubauer, M.L. Tollestrup, A.V. Watts, A.C. Yonehara, K. Zwaska, R.M. JACoW Publishing Geneva, Switzerland 978-3-95450-184-7 10.18429/JACoW-IPAC2018-WEPAG002 English 2064-2066 WEPAG002 Contribution to a conference proceedings 2018 2018-06 https://doi.org/10.18429/JACoW-IPAC2018-WEPAG002 http://jacow.org/ipac2018/papers/wepag002.pdf Fermilab is the main institution to produce the most powerful and wide-spectrum neutrino beam. From that respective, a radiation robust beam diagnostic system is a critical element in order to maintain the quality of the neutrino beam. Within this context, a novel radiation-resistive beam profile monitor based on a gas-filled RF cavity has been proposed. The goal of this measurement is to study a tunable Q-factor RF cavity to determine the accuracy of the RF signal as a function of the quality factor. Specifically, the measurement error of the Q-factor in the RF calibration is investigated. Then, the RF system will be improved to minimize signal error.