Chapter 6. Devices

The following document contains a list of all devices on MACS. Each device entry describes how the device works and how it interacts with other devices on the system.

Table of Contents

A1
A2
A3
A4
A5
A6
Ei
Ef
HKL
AnalyzerTheta01-20
Ef01-20
SmplX
SmplY
SmplZ
SmplUTilt
SmplLTilt
VBAH
VBAV
ColMon
Time
Monitor
DIFF01-20
SPEC01-20
DIFF
SPEC
PTAI
Beta1
Beta2
DMBT
BeFilMon - SIMULATED
MgFilMon - SIMULATED
PgFilMon - SIMULATED
BaseSampleTheta
AColMon
BColMon
DFMDTS
Focus
Kidney
MBTSlide
MonRot
MonTrans
L0
L1
Fref

A1

Monochromator Focusing Angle

System Name: DFM

Type: Virtual

Brief Description

This device controls the high-level overall focusing of the JHU monochromator. Moving this device will turn blades, cause vertical focusing etc. based on the currently chosen focusing mode. The method of focusing FLAT/ENERGY etc. can be changed through the move device panel.

Also note that the value of this device represents the last known focusing value of the monochromator. If the position of an individual motor is moved this should technically be invalidated, however the position for A1 will still be reported as the original value.

Restrictions

Devices which cannot be moved simultaneously with this device:

Other Restrictions:

None

Interactions

Devices which affect this device:

Devices which are affected by this device:

Whenever A1 is moved it moves the blades and other DFM motors to achieve focusing, based
on the current focusing mode.  Equations describing the motions can be found in the DFM manual.

Also, Ei's value is recalculated whenever A2 is moved using the following formula:
    Ei = 81.81 / ((2 * d-spacing * sin(A1)) ^ 2) or
    Ei = N/A if A1 is not within tolerance of A2 / 2
            

Missing Xinclude DeviceMonBlade01-20.xml