How to Register as a Radiation Worker for Collaborators(PF, PF-AR, and Slow Positron Users)<Note: "PF-AR Test Beam Line" users do not apply to this procedure.>Contact Information
Radiation Reception

Radiation Reception Building
TEL: 3500 (ex.), 029-864-5496, E-mail: kek3500@ml.post.kek.jp
Business hours: 8:30-12:00 and 13:00-18:30 on weekdays<Only inquiries about women's exposure control>
Radiation Control Office
Radiation Control Building, 1F
TEL: 5495 (ex.), 029-864-5495, E-mail: rad-office@ml.post.kek.jp
Business hours: 9:00-12:00 and 13:00-16:00 on weekdays

Procedure Flow
1. Paper preparation for registration<Required paper> Form No. 10
Create Form No. 10 using the Users Support System (https://krs.kek.jp/uskek/ui/UI_00000E). The
seals of the representative and radiation safety supervisor of the applicant's institute are required. If
the applicant belongs to a foreign institute, the sign of the radiation safety supervisor is not required.
<Additional paper 1: In case of a female applicant> Form No. 11
Since the exposure control criteria change for "pregnant women" or "infertile women or women who
do not intend to become pregnant," the applicant should complete Form No. 11 if necessary.
<Additional paper 2: In case of exposure the year> Copy of exposure record
Prepare a copy of the applicant's exposure record if the applicant is a radiation worker taking morethan 5 mSv for males and 1 mSv for females in the current fiscal year.
<Additional paper 3: In case of exposure the previous year> Copy of medical examination report
Prepare a copy of the applicant's medical examination report for radiation workers if the applicant is aradiation worker who has taken more than 1 mSv in the previous fiscal year.
2. Submission of the registration papers to the Radiation Control Office
Mailing address: Radiation Control Office, High Energy Accelerator Research Organization (KEK),
1-1 Oho, Tsukuba, Ibaraki 305-0801, JAPANMust arrive at Radiation Control Office at least two business days before the visit. Sending methods withtracking services are recommended. Submitting the registration documents as early as possible isrecommended to allow for a longer e-learning period in advance.
3. Confirmation of the approval status for the registration papers on the User Support System
When the registration papers are received and accepted by Radiation Control Office, the registration statuschanges to "Completed." It takes 1 to 2 business days after the registration papers are received, even if
the papers are complete. If the registration status is not changed to "Completed," please contact theRadiation Reception.
4. E-learning of the radiation safety training for PF users
After the approval status for the registration papers changes to "Completed," the e-learning of the radiation
safety training for the PF users can be taken. The link to take the e-learning will appear on the User Support
System. The radiation safety training consists of a 30-minute video and a comprehension test. After thetest is passed, print out "the PF Radiation Safety Training Record" and fill out the required information. Thee-learning must be completed before visiting KEK.
5. Submission of the PF Radiation Safety Training Record at KEK
The applicant brings the PF Radiation Safety Training Record and submits it to PF Radiation Reception Desk(PF Light Source Building, 1F).
6. Issuance of a personal dosimeter and start radiation work.
The personal dosimeter is received at PF Radiation Reception Desk.

Annual Renewal
The registration of the radiation worker expires at the end of the Japanese fiscal year. Renewal procedures arerequired annually. After April 1, no radiation work will be allowed for persons whose registration has expired.
June 26, 2023