US 12,014,839 B2
X-ray transfocator and focus variation method
Shanzhi Tang, Beijing (CN); Zhongrui Ren, Beijing (CN); Weiwei Zhang, Beijing (CN); Weifan Sheng, Beijing (CN); and Ming Li, Beijing (CN)
Assigned to INSTITUTE OF HIGH ENERGY PHYSICS, CHINESE ACADEMY OF SCIENCES, Beijing (CN)
Appl. No. 17/794,769
Filed by INSTITUTE OF HIGH ENERGY PHYSICS, CHINESE ACADEMY OF SCIENCES, Beijing (CN)
PCT Filed Jul. 12, 2021, PCT No. PCT/CN2021/105748
§ 371(c)(1), (2) Date Jul. 22, 2022,
PCT Pub. No. WO2023/272777, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 202110749281.0 (CN), filed on Jul. 2, 2021.
Prior Publication US 2023/0187097 A1, Jun. 15, 2023
Int. Cl. G21K 1/06 (2006.01)
CPC G21K 1/065 (2013.01) 7 Claims
OG exemplary drawing
 
1. An X-ray transfocator, comprising:
a main frame,
a plurality of switched arms arranged on one side of the main frame and along the optical axis of the X-ray transfocator,
a driving component set at the top of the main frame, and
a positioning groove set at the bottom of the main frame;
wherein each of said switched arms is composed of successively connected a push rod, a push-push ratchet mechanism, a preload spring and a guide stick, a two-dimensional flexible axis, and a CRLs holder from top to bottom; the said guide stick is a telescopic structure, which is located in the said preload spring; CRLs are stacked and arranged in the said CRLs holder; the said push-push ratchet mechanism contains an extension spring, a slider with a ratchet guide slot, a guide baseplate, a C-shaped tie rod, in which the slider with ratchet guide slot and the guide baseplate form a linear guide motion pair by a linear groove and a guide structure; the upper end of the slider with the ratchet guide slot is connected to the upper end of the guide baseplate by the extension spring; the lower end of the slider with ratchet guide slot is successively connected with the preload spring and guide stick, the two-dimensional flexible axis, and the CRLs holder; an upper end of the C-shaped tie rod slidingly mated in the ratchet guide slot of the slider with ratchet guide slot, and its lower end is connected with the bottom end of the guide baseplate by an elastic clamping;
said positioning groove is located directly below the switched arms, and its opening is upward, its axis is parallel to the optical axis;
said driving component includes a positioning table and a motor located on the positioning table; said positioning table is used to move the motor above the arm to be switched; said motor is used to thrust the push rod of the arm to be switched, to control the sliding of the upper end of the corresponding C-shaped tie rod in the ratchet guide slot of the slider with the ratchet guide slot, so that the slider with the ratchet guide slot is in low or high state, to make the switched arm to be ON-axis or OFF-axis relative to the optical axis.