###### Abstract  
The drilling core sampling and chemical analysis method for the quantitative determination of solid mineral deposits has several drawbacks, including a low core drilling efficiency, a high core sampling cost, and a long chemical analysis cycle. In current uranium quantification practices, advanced techniques have been developed to preliminarily determine the formation of uranium content based on the interpretation results of natural \(\gamma\)-ray total logging. However, such methods still require supplementary core chemical analysis to derive the uranium-radium-radon balance coefficient, which is then used for equilibrium correction to obtain the true uranium content within the uranium-bearing layer. Furthermore, conventional prompt neutron time spectrum logging is constrained by low count rates, resulting in slow logging speeds that fail to meet the demands of practical engineering applications. To address this, this study proposes a uranium quantification method that corrects the natural \(\gamma\)-ray total logging using prompt neutron time spectrum logging. Additionally, a calibration parameter determination method necessary for quantitative interpretation is constructed. However, these approaches suffer from three major limitations: a low drilling efficiency, high sampling costs, and lengthy chemical analysis cycles [1]. In existing uranium mines in China--particularly in northern oil and gas basins such as the Songliao Basin, Ordos Basin, and Yili Basin [2]--it is common for the uranium content to be low, the ore layers to be thin, and the uranium-bearing layers to be dispersed. For example, the minimum recoverable content of sandstone type uranium deposits is only 0.01%, with a recoverable thickness of just 70 cm or more. Consequently, quantitative methods based on core chemical analysis further exacerbate the abovementioned three limitations. Approximately 99% of natural \(\gamma\)-ray radiation originates from the uranium and thorium decay series, as well as potassium in the Earth's crust. Consequently, uranium exploration relies heavily on natural \(\gamma\)-ray logging, including both total count and spectral logging methods [3; 4; 5]. In both uranium exploration and in situ leach (ISL) uranium mining--collectively referred to as uranium prospecting and mining activities--quantitative interpretation primarily relies on natural \(\gamma\)-ray logging. This is typically supplemented by core chemical analysis to determine uranium concentrations. Furthermore, since U-Th-K mixed mineralization accounts for less than 5% of uranium deposits in China, natural \(\gamma\)-ray total logging alone is generally sufficient for the preliminary estimation of uranium (or radium) content in uranium-bearing layers [6; 7]. It should be noted that uranium and thorium are the parent nuclides of the uranium and thorium decay series, respectively. These parent nuclides do not emit \(\gamma\)-rays directly; instead, certain daughter nuclides--referred to as gamma-emitting nuclides--are responsible for \(\gamma\)-ray emissions [8; 9]. When the decay rates of the parent and daughter nuclides are equal, the system is said to be in a state of radioactive equilibrium. Under such conditions, the uranium and thorium decay series enable the quantification of uranium, thorium, and their progeny, based on \(\gamma\)-rays emitted by their respective gamma-emitting nuclides [10; 11]. Typically, the thorium series in nature readily achieves radioactive balance, making thorium content determination via thorium series \(\gamma\)-rays straightforward. However, the uranium-radium-radon balance within the uranium series is rarely maintained. When dividing the uranium series into two subsections--the uranium subsection and radium subsection--the subsection balance becomes more attainable. Critically, the radium-subsection contributes over 97% of total \(\gamma\)-ray emissions in the uranium series, enabling reliable radium content determination from uranium-series \(\gamma\)-rays.