NSL RING

Since around Sep. 25, users have been unable to log in to NSL RING due to an authentication error. This issue is caused by a server failure of JRR-3 RING, which is responsible for the authentication process used during NSL RING login. JRR-3 RING is currently working on the issue; however, the recovery schedule is still unknown. We sincerely apologize for the significant inconvenience and trouble caused.

The JRR-3 operation schedule of JFY2026 has been officially published from JAEA. ★ Check the websiteJFY2026 Operation Schedule

The deadline of registration is 12:00 PM（JST）, Monday, October 19, 2026.　★Be sure to keep the deadline.
Principal Investigators are required to apply for your experiments after receiving an email titled "Request of your experiment application".

Starting in JFY2026, the JRR-3 safety training e-learning via NSL RING required before experiments will be integrated into the JRR-3 RING system.
Accordingly, we have consolidated accounts for users who had different account names or were using multiple accounts.

If this applies to you, please log in to JRR-3 RING and/or NSL RING to confirm that your account is functioning properly.
If you have any issues, please contact the following:

JRR-3 RING: jrr3ring@jaea.go.jp
NSL RING: nsl-use@issp.u-tokyo.ac.jp

[Important]

• -Both RING systems can be accessed using the same account name and password.
• -If you are a new user to one or the other, please use your existing account.
• -When your affiliation changes, do not create a new account; instead, update your user information and continue using your current account.