Abstract: A bag transformable into a tablecloth comprised of a bag manufactured from paper or a similar material having a quadrangular shape, the bag having tearing or controlled breaking means on which a thermal material lamina is incorporated. A plastic material or similar lamina is incorporated on one or each of the bag surfaces. The lamina is provided with reinforcement and with openings on the upper part constituting handles. The laminas are printed on one or both faces, able to be separated from the central body for forming tablecloths, having an identical width and longer length than the central body or a shorter length, as may be selected.

Abstract: A remote sensor for detecting a nuclear source, comprises: a Field-of-View (FOV) structure having an aperture therethrough of area A and a Field-of-View (FOV) angle, the FOV angle centered on a source, and subtending a solid angle &OHgr; to the nuclear source; a plurality of optical filters for filtering photons outside a selected Ultraviolet (UV) band and for transmitting in-band photons according to a selected Transfer Function defining an out-of-band rejection ratio and an in-band transmittance ratio for the selected UV band, the Transfer Function supporting a sensor sensitivity S at the selected UV band for the Field-of-View (FOV) structure to support a Signal-to-Noise ratio of greater than one (1) to detect a nuclear source of nuclear material having a brightness of at least about IR, the selected UV band being selected such that naturally occurring in-band photons are at a brightness of about less than 104 R during daylight and are not naturally occurring at night up to about 20 km Earth altitude, and t