Experimental comparison of the active well coincidence counter with the random driver

A proposed semi-empirical method for 235U mass calibration of the active-well neutron coincidence counter

“…3(b)), a semi-empirical calibration could be performed and a function could be constructed between the 235 U mass content and the estimated real coincidences according to Eq. (11).…”

“…(10) and (12) into Eq. (11). Therefore, for sample number ''k'' the real coincidence count rate will be…”

“…The AWCC was tested and used in different applications by many authors [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. The AWCC was compared with other neutron coincidence detectors to investigate its precision, counting rate, accuracy, penetrability, stability, and the effect of sample inhomogeneity [11,12].…”

“…The AWCC was compared with other neutron coincidence detectors to investigate its precision, counting rate, accuracy, penetrability, stability, and the effect of sample inhomogeneity [11,12]. Samples of high-enriched uranium (HEU) oxide, uranium oxide mixed with graphite, highly enriched uranium metal disks, and depleted uranium metal were measured [11].…”

On the Mathematical Calibration of the Active Well Neutron Coincidence Counter (AWCC)

“…The AWCC was tested and used in different applications by many authors [7][8][9][10][11][12][13][14][15][16][17]. It was compared with other neutron coincidence detectors to investigate its precision, counting rate, accuracy, stability, and the effect of sample inhomogeneity [7,8]. Menlove and Bosler [9] showed that the instrument could be used for assaying wide range of HEU samples in form of stacked disks to simulate buttons and thin metal plates both in thermal and fast modes taking into consideration the neutron self-shielding and multiplication.…”