Numbers of installed units:
MEBT: 2
DTL: 6
CCL: 2
SRF: 6
HEBT: 5
Ring: 1
RTBT: 5

Minimum requirements:
Operating modes: MEBT, DTL, CCL, SRF, Ring and RTBT commissioning; troubleshooting; nominal. (See beam modes definition page.) For operating with unchopped beam the pulse width is assumed to be no longer than 1ms. The system will provide a droop of 0.1%/ms after signal droop compensation and baseline restoration.
Peak beam current range: 15 to 60 mA in the MEBT, DTL, CCL, and SRF; 15mA to 60A in the Ring and RTBT.
Bandwidth: 5 MHz.
Current measurement accuracy: ±1%1 of full scale
Current measurement resolution: ±0.1%1 of full scale
Aperture radii: 35mm in MEBT 12.5 mm in DTL, 15 mm in CCL, 36.5 mm in SCL, 50 mm in D-plate, 100mm in HEBT, Ring and RTBT.
Update rate: 4 Hz.
Each BCM pickup and each electronics module must have a unique serial number on it.

Target requirements - minimum requirements as above plus:
Peak beam current range: 15mA to 100 mA in the MEBT, DTL, CCL, and SRF; 15mA to 100A in the Ring and RTBT. Reduced performance1 at the lower currents.
Bandwidth: 7 MHz.
Update rate: 10 Hz.
Minimum minipulse length: 300 ns.
Sample given point(s) on given minipulse for given range of minipulses. Permits averaging of data pulse to pulse.
Maximum acquisition rate for duration of several (~10) macropulses.
Auto test feature sufficient to check out cabling to pickup, and connection through control system to user interface (expected to be exercised during inter-pulse period). Data stored for request by control system.
No electronics in beam tunnel.
RTDL/event link monitor for timing.
Data sent to control system should have a date and time stamp for each data point, accurate enough to specify macropulse.
Raw data output available on command, at reduced update rates (~1 Hz).

Desired requirements - target requirements as above plus:
Maximum acquisition rate for duration of entire macropulse with circular buffer storage sufficient to store a minimum of 60 macropulses (~1 sec.).

Notes:
1. Full scale depends upon the channel gain selected. The maximum sensitivity of ±100mA for MEBT, DTL, CCL, SRF, and HEBT will be used as a single constant gain setting. The gain setting will change dynamically with the rising current in the Ring and RTBT to a minimum sensitivity of ±100A full scale. Gain will be changed during the "gap" time and data could be lost during transients (transients expected to settle in less than one turn).

2. The sampling frequency has not yet been finalized. The ability to sample a given point will be within the resolution of the sampling clock period (with a maximum period of about 32 ns).

BCM System Specifications

Numbers of installed units:
MEBT: 2
DTL: 6
CCL: 2
SRF: 6
HEBT: 5
Ring: 1
RTBT: 5

Electronics specifications:
Peak beam current range: 15mA to 100A.
Bandwidth: 7 MHz.
Sample rate: ?? (between 32 MHz and 65 MHz).
Update rate: 10 Hz.

Pickup specifications:
Input Current Rating
(Ring & RTBT) 100A peak pulse with 1ms duration repeated at 60Hz
Input Current rating
(MEBT & Linac& HEBT) 100mA peak pulse with 1ms duration repeated at 60Hz
Toroid Turns Ratio 50:1
Calibration Winding Turns Ratio 10:1
Output Load Impedance 50 Ohms (internally matched to 50 Ohms)
Droop 0.1%/ms
Rise-time <1ns
Connectors SMA
Aperture radii: 35mm in MEBT 12.5 mm in DTL, 15 mm in CCL, 36.5 mm in SCL, 50 mm in D-plate, 100mm in HEBT, Ring and RTBT.

Each BCM pickup and each electronics module must have a unique serial number on it.