Numbers of installed units:
Linac: 2
Injection dump: 1
Extraction dump: 1
RTBT (target): 2
Responsible parties:
Analog electronics: John Power, LANL.
Digital electronics: Matt Stettler, LANL.
Pickups: Mike Plum, LANL
Measurement:
The harp system provides a measurement of beam position and
profile from a single beam pulse.
Key specifications:
Peak beam current range: 10 to 60 mA.
Beam pulse length (linac, injection):
10 to 1000 us (maximum possible from linac).
Beam pulse length (extr., target): 1 us. H+ beams.
Intensity range (ppp) 3E11 to 2E14.
Position range: ± beam pipe
radius (linac, inj., extr.), ±140 x 64
mm (tgt.).
Position accuracy: ±1 mm when
data is fitted with a Gaussian profile.
Position resolution: ±0.5 mm when
data is fitted with a Gaussian profile.
Width accuracy: 10% when data is fitted
with a Gaussian profile.
Width resolution: 5% when data is fitted
with a Gaussian profile.
Data structure: Single shot.
Number of signal planes: 3 (x, y, and x-y).
Inputs:
Signal cables from harp pickup.
RTDL/event link.
120 Vac (on/off control via control system).
Channel Access
Outputs:
Channel Access.
Delivery schedule:
Linac – Fall. 2002.
Injection dump – Spring 2003
Extraction dump – Spring 2003
RTBT (target) – Spring 2003