== SDC5	Detector gain == 

- **Phase**		:	Any  
- **Status**		: 	Draft	 
- **Category**	: 	Daytime calibration (C3)
- **Recurrence**	: 	once every month starting from commissioning.
- **Duration**	: 	20 minutes

**Description**
- Monitor detector gain factor, RON, and non-linearity over time.

**Prerequisites**
- Instrument and dome closed

**Procedure**
- This calibration is performed by reading the detector without any light illumination i.e. using an opaque position during 600s. 
- Continuous extended source in the calibration; various ND; various integration times. CI in B_H.

**Success criteria**
- 5% expected accuracy. 

**Templates**

**Notes**
- Same as activity 9.2 in AD4

**LBTO support**

**Date performed and by whom**