These CCRs have remained in almost constant use during the cycle. They are especially popular because of their low base temperatures and light weight.
| System Description | Temperature Range (K) | Manufacturer | Available Instruments | System Drawing |
|---|---|---|---|---|
| CCR-05 | 6-325 | ARS | All | Drawing |
| CCR-08 | 6-325 | ARS | All | Drawing |
| CCR-09 | 6-325 | ARS | All | Drawing |
| CCR-13 | 6-325 | ARS | All | Drawing |
| CCR-14 | 6-325 | ARS | All | Drawing |
| CCR-17 | 6-325 | ARS | All | Drawing |
| CCR-11(for NGD Reflectometer) | 5-325 | ARS | All | Drawing |
| CCR-12(for NGD Reflectometer) | 5-325 | ARS | All | Drawing |