Abstract:
An irradiating device and a method for controlling it are provided. The device comprises an electron accelerator and a scanning box connected to the electron accelerator, wherein the scanning box is provided with a target, an electron beam exit window positioned at left or right side of the target and a scanning magnet. The device integrates the functions of both the existing irradiating device outputting electron beams and those outputting X-rays. When the scanning magnet is in operation, the irradiating device outputs electron beams; and when the scanning magnet is not in operation, the irradiating device outputs X-rays. Therefore, the device is capable of outputting two radiation sources so as to meet requirements for radiation-processing articles with different sizes.
Abstract:
The invention provides an automatic system and method using x-ray inspection to image arrays of electrical interconnections on electronic devices. The electron beam of a rotating anode X-ray tube is deflected relative to the anode to cause emission of x-rays from different regions of the anode at different times. The x-ray tube is located at an inspection station for the electronic devices and disposed to irradiate a first part of the array of interconnections with x-rays emitted from a first region of the anode and to irradiate a further part of the array of interconnections with x-rays emitted from another region of the anode. X-rays emerging from the array of interconnections are detected and used to image part at least of the array in order to automatically register interconnection integrity failures and/or detect a performance trend in the formation of the connections. Typically, the arrays of electrical interconnections are established between a ball grid array on the underside of an electronics package and an array of blobs of solder paste on a printed circuit board.
Abstract:
An energy beam is irradiated onto a target from an energy beam source, thereby generating an X-ray with an irradiating area to be irradiated onto an object. Then, the X-ray is introduced into a spectrometer, thereby generating an X-ray with parallelism through the selection of wavelength and wavelength range.
Abstract:
An irradiating device and a method for controlling it are provided. The device comprises an electron accelerator and a scanning box connected to the electron accelerator, wherein the scanning box is provided with a target, an electron beam exit window positioned at left or right side of the target and a scanning magnet. The device integrates the functions of both the existing irradiating device outputting electron beams and those outputting X-rays. When the scanning magnet is in operation, the irradiating device outputs electron beams; and when the scanning magnet is not in operation, the irradiating device outputs X-rays. Therefore, the device is capable of outputting two radiation sources so as to meet requirements for radiation-processing articles with different sizes.
Abstract:
In an x-ray generator for an x-ray apparatus with an x-ray tube (10) from which x-rays exit at a beam exit window, an x-ray lens module is provided that is located in the immediate proximity of and in front of the beam exit window. The x-ray lens module allows the insertion (switching) of an x-ray lens into the beam path of the x-rays.
Abstract:
PURPOSE: An X-ray tube and an X-ray generator are provided to improve electron focusing efficiency by arranging a magnetic coil around an anode. CONSTITUTION: A ceramic tube has a U-shape section. A ceramic tube is formed by combining two tubes. One of two tubes has a combination unit. An electron generator emits an electron to the inside of the ceramic tube. An anode(143) is arranged on the end of the ceramic tube and has a tube shape. A magnetic coil(142) is arranged around the anode and forms a magnetic field for focusing the electron. A target(145) is arranged on one end of the anode to convert the electron to an X-ray.
Abstract:
본 발명은 엑스선 발생장치에 대한 것으로, 발명의 주된 목적은 튜브를 알루미늄 소재의 관으로 제조하되, 내부를 개폐가능하도록 하면서 진공을 형성할 수 있도록 하여 제작이 용이하고, 내부 부품의 교체가 가능하여 반 영구적으로 사용할 수 있도록 하는데 있다. 상기 목적한 바를 달성하기 위한 본 발명의 엑스선 발생 튜브는 내부에 엑스선 발생기구(140)를 내장하되, 내부가 원통형으로 이루어진 채, 선단면 중앙에는 타겟(141)을 가지고, 타측에는 삽입단부(111)로 이루어진 전반부 반체(110)와, 내부가 원통형으로 이루어진 채, 상기 전반부 반체(110)의 삽입단부(111)가 끼워질 수 있도록 수용단부(121)가 마련되고, 후단면에 고압 케이블용 연결부(122)가 구비되는 후반부 반체(120); 상기 후반부 반체(120)의 일측에 구비한 진공제공수단(150); 그리고 상기한 전반부 반체(110)의 삽입단부(111)와 후반부 반체(120)의 수용단부(121)를 끼워 조립한 상태에서 이들을 상호 결속시키기 위한 체결수단(130);을 포함하여 엑스선 발생 튜브(100)를 구성하는 것이다.
Abstract:
The invention relates to an X-rayimaging system (100) like a CT-scanner. In a preferred embodiment of the system, a cylindrical X-raydetector(130) is sandwiched between two cylindrical X-raysources (110, 120) or vice versa. The X-raysources preferably comprise cathodes with carbon nanotubes and a multitude of focal spots(111) that can selectively be controlled. The cylinder-diameters of the X-raysource and the X-raydetector may be the same or, preferably, be different. Moreover, the X-raysource and the X-ray detector preferably extend circumferentially over less than the full angle of 360°.
Abstract:
A smoke detector comprises a soft x-ray source (10) and an air space (16) communicating with ambient air (18) and positioned so that soft x-rays produced by the soft x-ray source (10) pass into the air space (16) to ionise air in the air space (16). A detector (14) is positioned for detecting ionised air in the air space (16). Smoke particles entering into the air space (16) mop up ionised air. This leads to a reduction in the number of ions detected which triggers an alarm. The soft x-ray source (10) preferably comprises a substrate (22) on which are provided a plurality of nanometer scale elongate structures (28). The elongate structures (28) are provided in an evacuated chamber (42) formed between the substrate (22), a spacer (30), and a laminated film (36). The laminated film (36) comprises an aluminium foil layer (38) and a supporting nylon layer (40). A voltage converting circuit (44) is powered by a 9 volt DC battery and applies a 1.5kV DC voltage between the substrate (22) and the aluminium foil layer (38). In use, the electrical voltage induces field emission of electrons from the elongate structures (28). The electrons are accelerated across the chamber (42) to the aluminium foil layer (38), where they collide with the foil layer (38) and produce the soft x-rays.