Calypso Medical Technologies, the Seattle-based maker of technology to pinpoint radiation therapy to reduce side effects, is announcing today that Siemens Healthcare has agreed to distribute its system throughout Europe. Financial terms of the deal weren’t disclosed, although it gives Siemens non-exclusive rights to sell the Calypso system in Europe for three years. Last November, the companies formed a separate partnership to integrate technology from both companies. Calypso made news over the past couple weeks as its longtime CEO, Eric Meier, stepped down, and the company laid off about 15 percent of its staff as part of a reorganization of its U.S. sales force. The cuts, Calypso said, didn’t affect the company’s international expansion plan.