Radiation conversion device and radiation image capturing system

• US 20090212222A1
• Filed: 02/23/2009
• Published: 08/27/2009
• Est. Priority Date: 02/25/2008
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Nishino, Naoyuki, Kito, Eiichi, Ohta, Yasunori, Iiyama, Tatsuo, Tamaoki, Hiroshi
• Granted Patent: US 8,198,593 B2
• Time in Patent Office: Days
• US Class Current: 250/361.R
• CPC Class Codes: G03B 42/04 Holders for X-ray films

Abstract

A radiation conversion device includes a radiation detection device, which detects radiation having passed through a subject, and converts the radiation into radiation image information, and a battery unit for supplying electrical power to at least the radiation detection device. The battery unit is equipped with at least two batteries, and set with a required capacity for capturing at least one radiation image.

Claims

1. A radiation conversion device comprising a radiation detection device, which detects radiation having passed through a subject, and converts the radiation into radiation image information, and a battery unit for supplying electrical power to at least the radiation detection device,

wherein the battery unit is equipped with at least two batteries, and the battery unit is set with a required capacity for capturing at least one radiation image.

2. The radiation conversion device according to claim 1, wherein each of the batteries is set with a required capacity for capturing at least one radiation image.

3. The radiation conversion device according to claim 1, wherein the battery unit comprises:

a power feed line for supplying electrical power to the radiation detection device;

an energy conversion unit for converting supplied energy from the exterior to electrical energy;

a charging line connected to the energy conversion unit; and

a battery switching unit for selectively connecting the at least two batteries to the power feed line and to the charging line.

4. The radiation conversion device according to claim 3, wherein the battery switching unit selectively connects the at least two batteries to the power feed line and to the charging line based on a number of times that capturing of the radiation image is carried out.

5. The radiation conversion device according to claim 4, wherein the battery switching unit connects one battery in turn to the power feed line with each time that capturing of the radiation image is carried out.

6. The radiation conversion device according to claim 3, further comprising:

a capacity calculating unit for determining a required capacity for capturing at least one radiation image corresponding to image capturing conditions,

wherein the battery switching unit selectively connects a number of batteries corresponding to the required capacity to the power feed line.

7. The radiation conversion device according to claim 3, wherein the supplied energy is supplied to the energy conversion unit wirelessly from the exterior.

8. A radiation image capturing system having a radiation conversion device comprising a radiation detection device, which detects radiation having passed through a subject upon capturing a radiation image, and converts the radiation into radiation image information, and a battery unit for supplying electrical power to at least the radiation detection device,

wherein the battery unit of the radiation conversion device is equipped with at least two batteries, and the battery unit is set with a required capacity for capturing at least one radiation image,

and further comprising:

a battery selection unit for selecting a battery to be used from among the at least two batteries based on a number of times that capturing of the radiation image is carried out; and

a charging unit for performing charging of a battery that has been used.