Maisonburg (Shenzhen) Technology Development Co., Ltd. (hereinafter referred to as “Maisonburg”) has obtained a patent about NQR explosive detection technology which can enhance the effectiveness of security inspection to protect citizens. The invention aims to solve the weaknesses of low anti-interference ability in traditional technical solution.
After the September 11 attacks, the international society has formed consensus on against terrorism, counter-terrorism becomes a major priority for all countries and achieves a certain level of success. Yet, terrorists are still active, terrorist attacks that using different explosive devices have been jeopardizing the safety of citizens over the world. For instance, the Parsons Green train bombing in London on 15 September 2017; the bomb attack at a cricket match in eastern Afghanistan on 19 May 2018; and the 2019 Cairo bombing on 4 August 2019. The damage caused by explosive device is obvious, but not only the terrorist bomb attacks, the mines leaving under the ground since war period is also an issue which threaten the world safety. Due to the fatal power, once the explosive devices exploded in crowded areas such as airports, stations, schools or hospitals, the casualties and losses will be extremely huge, and cause negative social impact.
NQR explosive detection technology utilizes nuclear quadrupole resonance to extract signal. As a non-contact sensing technology, this technology generate nuclear quadrupole resonance and electromagnetic radiation by using a set of simulative signal to stimulate the special elements contained in the tested sample. Since explosive materials usually contain Nitrogen 14 (N14), no matter how terrorists make changes on the outlook of the explosive devices, this detection technology will always detect them.
Since NQR detection technology can detect explosives with high accuracy, many countries are currently developing this technology for security inspection or mine detection. However, it is extremely difficult to detect the NQR signal due to the weak NQR signal (Magnitude in nV order). Thermal noise from internal of devices or surrounding background noise can easily cover the signal, as well as influenced by external radio frequency interference. Hence, there is harsh requirement for NQR technology detection method.
Maisonburg make a breakthrough on NQR explosive detection technology. New invention provides an non-directional gradient antenna technically for the first time. When detecting in a specific area, the far-end and near-end external interference to the system can be effectively suppressed and enhance the signal-to-noise ratio of detection signal. It can prevent the situation of missed detection due to external signal interference, bring protection to the public and improve the efficiency of security inspection in an all-round way by accurately identifying the explosives.
At present, terrorism is escalating worldwide, terrorist activities have been posing a threat and challenges to world peace, economic development as well as human civilization. Under the development of NQR explosive detection technology, the application of this technology plays an critical role in the field of security inspection and social safety. As a technology-driven high-tech company, Maisonburg believes the necessity of utilizing our advantages in the field of weak signal extraction, to develop advanced security equipment with independent intellectual property rights, and to protect our country and citizens.