Learn about Mu2e-II

Nominal Parameter values

Parameter	Nominal value	Units
PIP-II parameters
Beam energy (kinetic)	800	MeV
	1.28[math]\displaystyle{ \small{\times 10^{-10}} }[/math]	J
Particles/pulse	6.7[math]\displaystyle{ \small{\times 10^{12}} }[/math]
I_average in pulse	2	mA
Pulse length	550	[math]\displaystyle{ \small\mu }[/math]s
Pulse rep rate	20	Hz
Bunch pattern	programmable
RF frequency	162.5	MHz
	325	MHz
	650	MHz
Mu2e-II parameters
Run time/yr	2[math]\displaystyle{ \small{\times 10^{7}} }[/math]	s
Duration of run	3	yr
Total run time	6e7	s
Total linac reps	1.2[math]\displaystyle{ \small{\times 10^{9}} }[/math]
Extinction	1[math]\displaystyle{ \small{\times 10^{-11}} }[/math]
Beam power	100	kW
Number of bunches	16	(at 162.5 MHz)
Spill width	100	ns
Production target parameters
Material
Power deposition		kW
Optimizable parameters for stopping target material
Aluminum stopping target
Spill period	1693	ns
Spills/linac rep	27770	approximate, at 20 Hz linac repetition rate
Protons/spill	1.4[math]\displaystyle{ \small{\times 10^{9}} }[/math]
POT	4.67[math]\displaystyle{ \small{\times 10^{22}} }[/math]
Stopped mu/p	1.9[math]\displaystyle{ \small{\times 10^{-4}} }[/math]	rough estimate, TBC, assumes stopped mu/kW same at 800 and 8000 MeV among possibly other things
SES	<3[math]\displaystyle{ \small{\times 10^{-18}} }[/math]
E(conversion e-)	104.97	MeV
tau(muon)	864	ns
Lead stopping target
E(conversion e-)	94.9	MeV
Tracker
Resolution at 100 MeV
Calorimeter
Material
Energy resolution	10%	%
Time resolution	< 500	ps
Radiation dose	10	kGy
	[math]\displaystyle{ \small 1\times 10^{13} }[/math]	n/cm[math]\displaystyle{ \small{^2} }[/math]/s
Cosmic Ray Veto
Trigger/DAQ
Event size	1	MB
Tape storage	14	PB/yr