Disclosed is a technology related to a compact radiation detection apparatus used to measure airborne radiation. The compact radiation detection apparatus includes a cylindrical filter, a detector assembly coupled to one end of the cylindrical filter, and a pump assembly coupled to the other end of the cylindrical filter. Negative pressure is formed in an inner space in the cylindrical filter by a vacuum pump, and accordingly, aerosol is continuously collected on the surface of the cylindrical filter. A detector located in the inner space in the cylindrical filter detects radiation emitted from the collected aerosol.

Systems and methods for improving radiographic scanning. In an example, the technology relates to a system for performing radiographic scanning. The system includes a photon source configured to emit photons. The system also includes a photon counting detector for detecting photons emitted from the photon source after passing through a target. The photon counting detector comprising first pixels having a first size and second pixels having a second size, and the first size is greater than the second size.

Systems and methods for improving radiographic scanning. In an example, the technology relates to a system for performing radiographic scanning. The system includes a photon source configured to emit photons. The system also includes a photon counting detector for detecting photons emitted from the photon source after passing through a target. The photon counting detector comprising first pixels having a first size and second pixels having a second size, and the first size is greater than the second size.

The method of separating an actinide within a mixture of an Rn-progeny alpha emitting isotope includes disposing a continuous air monitoring filter in acetone. The acetone is then evaporated, thereby forming a residue. The residue is mixed with a first solution including nitric acid, thus forming a first blend. The first blend is mixed with a second solution including an extraction solvent, thus forming a second blend. The second blend is stratified into a first layer and a second layer. The first layer is extracted from the second blend, thus separating the actinide from the Rn-progeny alpha emitting isotope.

Systems and methods for improving radiographic scanning. In an example, the technology relates to a system for performing radiographic scanning. The system includes a photon source configured to emit photons. The system also includes a photon counting detector for detecting photons emitted from the photon source after passing through a target. The photon counting detector comprising first pixels having a first size and second pixels having a second size, and the first size is greater than the second size.

Systems and methods for improving radiographic scanning. In an example, the technology relates to a system for performing radiographic scanning. The system includes a photon source configured to emit photons. The system also includes a photon counting detector for detecting photons emitted from the photon source after passing through a target. The photon counting detector comprising first pixels having a first size and second pixels having a second size, and the first size is greater than the second size.