diff --git a/common/src/aaredaqlib/models.py b/common/src/aaredaqlib/models.py
index 3beb5964..bf9b55fe 100644
--- a/common/src/aaredaqlib/models.py
+++ b/common/src/aaredaqlib/models.py
@@ -403,6 +403,13 @@ class SampleShortInfo(BaseModel):
 class SampleShortInfoList(BaseModel):
     s: List[SampleShortInfo]
 
+class SimpleScanParameters(BaseModel):
+    dtz: float = 120
+    exp_time_s: float = 0.02
+    start_omega_deg:float = 0
+    incr_omega_deg: float = 0.2
+    steps: int = 900
+    transmission: float = 1.0
 #class ReferencePuckInfo(BaseModel):
 #    test_sample = SampleShortInfo(db_id=-1, puck_name="test_puck", dewar_name="test_dewar", sample_name="test_sample",
 #                                  pin=11, location=DewarAddress(segment="X", pos=1))