CHESS Deadlines
2025 Winter Run (2025_1) Important Dates and Deadlines
Call for Proposals and Beam Time Requests (BTRs) Begins | October 2, 2024 |
Proposal Deadline | November 13, 2024 |
Rapid Access Proposal Submission* | November 14, 2024 |
Peer Review Deadline for Incoming Proposals* | November 27, 2024 |
Beam Time Request (BTR) Deadline | November 27, 2024 |
Run Cycle Begins | January 22, 2025 |
Run Cycle Ends | March 25, 2025 |
* Rapid Access proposals are selectively accepted. Among the beamlines, MacCHESS beamlines (7A HP BioSAXS & BioSAXS, and 7B2 HPBio MX & FlexX) and MSN-C beamlines (1A3 SMB and 3B FMB) accept Rapid Access proposals. Consequently, peer reviews for MacCHESS beamlines are continuous. MSN-C operates as a closed system and is not subject to peer review.
CHEXS beamlines (2A PIPOXS, 3A FAST, and 4B QM2) do NOT accept Rapid Access proposals. Proposals and beam time requests adhere to the deadlines listed above. Peer reviewers should observe the deadline above.
Information on Beamlines and the proposal process can be found here.
- If you have never submitted a proposal to CHESS please see the Prospective Users Handbook for more information on the process.
- Users who have already submitted a proposal can find information on the CHESS User Guide.
- For further information please send an email to CHESSUserOffice@cornell.edu
2025 Spring Run (2025_2) Important Dates and Deadlines
Call for Proposals and Beam Time Requests (BTRs) Begins | January 2, 2025 |
Proposal Deadline | February 12, 2024 |
Rapid Access Proposal Submission* | February 13, 2025 |
Peer Review Deadline for Incoming Proposals* | February 26, 2025 |
Beam Time Request (BTR) Deadline | February 26, 2025 |
Run Cycle Begins | April 23, 2025 |
Run Cycle Ends | June 24, 2025 |
* Rapid Access proposals are selectively accepted. Among the beamlines, MacCHESS beamlines (7A HP BioSAXS & BioSAXS, and 7B2 HPBio MX & FlexX) and MSN-C beamlines (1A3 SMB and 3B FMB) accept Rapid Access proposals. Consequently, peer reviews for MacCHESS beamlines are continuous. MSN-C operates as a closed system and is not subject to peer review.
CHEXS beamlines (2A PIPOXS, 3A FAST, and 4B QM2) do NOT accept Rapid Access proposals. Proposals and beam time requests adhere to the deadlines listed above. Peer reviewers should observe the deadline above.
Information on Beamlines and the proposal process can be found here.
- If you have never submitted a proposal to CHESS please see the Prospective Users Handbook for more information on the process.
- Users who have already submitted a proposal can find information on the CHESS User Guide.
- For further information please send an email to CHESSUserOffice@cornell.edu
2025 Fall Run (2025_3) Important Dates and Deadlines
Call for Proposals and Beam Time Requests (BTRs) Begins | July 2, 2025 |
Proposal Deadline | August 13, 2025 |
Rapid Access Proposal Submission* | August 14, 2025 |
Peer Review Deadline for Incoming Proposals* | August 27, 2025 |
Beam Time Request (BTR) Deadline | August 27, 2025 |
Run Cycle Begins | October 22, 2025 |
Run Cycle Ends | December 23, 2025 |
* Rapid Access proposals are selectively accepted. Among the beamlines, MacCHESS beamlines (7A HP BioSAXS & BioSAXS, and 7B2 HPBio MX & FlexX) and MSN-C beamlines (1A3 SMB and 3B FMB) accept Rapid Access proposals. Consequently, peer reviews for MacCHESS beamlines are continuous. MSN-C operates as a closed system and is not subject to peer review.
CHEXS beamlines (2A PIPOXS, 3A FAST, and 4B QM2) do NOT accept Rapid Access proposals. Proposals and beam time requests adhere to the deadlines listed above. Peer reviewers should observe the deadline above.
Information on Beamlines and the proposal process can be found here.
- If you have never submitted a proposal to CHESS please see the Prospective Users Handbook for more information on the process.
- Users who have already submitted a proposal can find information on the CHESS User Guide.
- For further information please send an email to CHESSUserOffice@cornell.edu
2026 Winter Run (2026_1) Important Dates and Deadlines
Call for Proposals and Beam Time Requests (BTRs) Begins | October 15,2025 |
Proposal Deadline | November 26, 2025 |
Rapid Access Proposal Submission* | November 27, 2025 |
Peer Review Deadline for Incoming Proposals* | December 10, 2025 |
Beam Time Request (BTR) Deadline | December 10, 2025 |
Run Cycle Begins | February 4, 2026 |
Run Cycle Ends | April 6, 2026 |
* Rapid Access proposals are selectively accepted. Among the beamlines, MacCHESS beamlines (7A HP BioSAXS & BioSAXS, and 7B2 HPBio MX & FlexX) and MSN-C beamlines (1A3 SMB and 3B FMB) accept Rapid Access proposals. Consequently, peer reviews for MacCHESS beamlines are continuous. MSN-C operates as a closed system and is not subject to peer review.
CHEXS beamlines (2A PIPOXS, 3A FAST, and 4B QM2) do NOT accept Rapid Access proposals. Proposals and beam time requests adhere to the deadlines listed above. Peer reviewers should observe the deadline above.
Information on Beamlines and the proposal process can be found here.
- If you have never submitted a proposal to CHESS please see the Prospective Users Handbook for more information on the process.
- Users who have already submitted a proposal can find information on the CHESS User Guide.
- For further information please send an email to CHESSUserOffice@cornell.edu
2026 Spring Run (2026_2) Important Dates and Deadlines
Call for Proposals and Beam Time Requests (BTRs) Begins | January 14, 2026 |
Proposal Deadline | February 25, 2026 |
Rapid Access Proposal Submission* | February 26, 2026 |
Peer Review Deadline for Incoming Proposals* | March 11, 2026 |
Beam Time Request (BTR) Deadline | March 11, 2026 |
Run Cycle Begins | May 6, 2026 |
Run Cycle Ends | July 7, 2026 |
* Rapid Access proposals are selectively accepted. Among the beamlines, MacCHESS beamlines (7A HP BioSAXS & BioSAXS, and 7B2 HPBio MX & FlexX) and MSN-C beamlines (1A3 SMB and 3B FMB) accept Rapid Access proposals. Consequently, peer reviews for MacCHESS beamlines are continuous. MSN-C operates as a closed system and is not subject to peer review.
CHEXS beamlines (2A PIPOXS, 3A FAST, and 4B QM2) do NOT accept Rapid Access proposals. Proposals and beam time requests adhere to the deadlines listed above. Peer reviewers should observe the deadline above.
Information on Beamlines and the proposal process can be found here.
- If you have never submitted a proposal to CHESS please see the Prospective Users Handbook for more information on the process.
- Users who have already submitted a proposal can find information on the CHESS User Guide.
- For further information please send an email to CHESSUserOffice@cornell.edu