Detector Specific Fields

Please check out the current detector header to see where the detector specific fields are placed.

Eiger

Detector Specific Field
expLength	Sub Frame Number
detSpec1	0x0
detSpec2	0x0
detSpec3	e14a
detSpec4	Round Robin Interface Number

DAQ Info Field
Bits	Name	Description
0	High gain	1	High Gain enabled
		0	High Gain disabled
1	Fix gain stage 1	1	Gain stage 1 fixed. The switch that selects the gains stage 1 is active all the time.
		0	Gain stage 1 unset. The switch that selects the gains stage 1 is inactive all the time.
2	Fix gain stage 2	1	Gain stage 2 fixed. The switch that selects the gains stage 2 is active all the time.
		0	Gain stage 2 unset. The switch that selects the gains stage 2 is inactive all the time.
4	Comparator reset	1	On-chip comparator in reset state. Dynamic-gain switching is therefore disabled.
		0	On-chip comparator active.
7-5	Jungfrau chip version	Bit 7	Bit 6	Bit 5	Description
		0	0	0	v1.0
		0	0	1	v1.1
		0	1	X	Reserved
		1	X	X	Reserved
11-8	Storage cell select	Storage cell used for this exposure. This field defines the storage cell that was used to acquire the data of this frame
12	Force switching to gain stage 1	1	Forced switching to gain stage 1 at the start of the exposure period.
		0	Disabled forced gain switching to gain stage 1. Dynamic gain switching conditions apply.
13	Force switching to gain stage 2	1	Forced switching to gain stage 2 at the start of the exposure period.
		0	Disabled forced gain switching to gain stage 2. Dynamic gain switching conditions apply.
23-16	10-Gigabit event code	The 8-bit event code contains value of the event received over the 10 GbE interface by JUNGFRAU detector at the moment of the frame acquisition.
31	External input flag	1	External input flag detected in the last exposure.
		0	External input flag not detected in the last exposure.

1: Bunch Id: bunch identification number received by the detector at the moment of frame acquisition.
2: Train Id: train identification number received by the detector at the moment of frame acquisition.
3: Bunch Id: bunch identification number to identify every single exposure during a burst acquisition.